Jan is trying to increase her water intake to meet recommended guidelines. She currently consumes 2 (24 oz. each) bottles of water per day, and 2 cups (8 oz. each) of low-fat milk. Assuming that she will obtain 15% of her fluid needs from foods, how many cups of water does she still need to drink?

Answers

Answer 1

Answer:

Extra 4 cups to make up 11 cups a day

Step-by-step explanation:

Here we have that Jan obtains 15% of her fluid needs from food, therefore, she gets the remaining 85 % from drinking water

If the recommended daily intake = 2.7 liters  or 91.3 oz

And she already consumes 48 oz of water and  16 oz of milk

Note milk is equivalent to 0.87 water therefore total intake = 48 + 16*0.87= 61.92 oz

She needs to take additional (91.3 - 61.92) = 29.4 oz or 3.68 ≈ 4 cups extra to meet her recommended daily dosage.


Related Questions

f(x) = x4 + x3 + 2x2 + ax + b,
where a and b are constants.
When f(x) is divided by (x - 1), the remainder is 7
(a) Show that a + b = 3
When f(x) is divided by (x + 2), the remainder is -8
(b) Find the value of a and the value of b

Answers

Answer:

see explanation

Step-by-step explanation:

The remainder theorem states that if f(x) is divided by (x - h)

The the remainder is f(h)

(a)

Given f(x) is divided by (x - 1) then remainder is f(1), thus

f(1) = [tex]1^{4}[/tex] + 1³ + 2(1)² + a + b = 7, that is

1 + 1 + 2 + a + b = 7

4 + a + b = 7 ( subtract 4 from both sides )

a + b = 3 ← as required → (1)

(b

Given f(x) is divided by (x + 2) then the remainder is f(- 2), thus

f(- 2) = [tex](-2)^{4}[/tex] + (- 2)³ + 2(- 2)² + 2a + b = - 8, that is

16 - 8 + 8 + 2a + b = - 8

16 + 2a + b = - 8 ( subtract 16 from both sides )

2a + b = - 24 → (2)

Multiply (1) by 2

2a + 2b = 6 → (3)

Add (2) and (3) term by term to eliminate the term in a

3b = - 18 ( divide both sides by 3 )

b = - 6

Substitute b = - 6 into (1)

a - 6 = 3 ( add 6 to both sides )

a = 9

Thus a = 9 and b = - 6

Final answer:

To solve for the constants a and b in the polynomial function f(x), we apply the remainder theorem to the given division scenarios. Setting up and solving a system of linear equations using the remainders allows us to find that a is 9 and b is -6.

Explanation:

The given function is f(x) = x^4 + x^3 + 2x^2 + ax + b, and we need to find the constants a and b given that when f(x) is divided by (x - 1), the remainder is 7, and when divided by (x + 2), the remainder is -8.

To find a + b, we apply the remainder theorem. When a polynomial f(x) is divided by (x - p), the remainder is f(p). Therefore, for (x - 1):

f(1) = 1 + 1 + 2 + a + b = 7
4 + a + b = 7
a + b = 3

Similarly, for (x + 2):

f(-2) = (-2)^4 + (-2)^3 + 2(-2)^2 + a(-2) + b = -8
16 - 8 + 8 - 2a + b = -8
16 - 2a + b = -8

We already know that a + b = 3, so we can set up a system of equations:

a + b = 3

-2a + b = -24

Solving for a and b:

Subtracting the first equation from the second: -3a = -27

Divide by -3: a = 9

Substitute a into the first equation: 9 + b = 3

Solve for b: b = -6

Which of the following are equivalent to the function y=3 cos x+2 ? Check all that apply
A. y= 3sin(x-pi/2) +2
B. y= 3sin(x+ pi/2) +2
C. y= 3cos(-x) +2
D. y= -3cos x-2

Answers

Options B and C are the correct answer.

The given trigonometric function is y=3cosx+2.

We need to check which of the given options are equivalent to the function y=3 cos x+2.

How to solve a given trigonometric function?

The given trigonometric function can be solved using complementary angles and even/odd identities.

Complementary angles are sin x=cos(π/2 -x) and cos x=sin(π/2 -x).

Even/odd identities are sin(-x) =-sin x and cos(-x)= cos x.

Now,

From option A:

y=3 sin(x-π/2) +2

using trigonometry identity, we get

y=3 sin(-(x-π/2)) +2

⇒y=-3 sin(π/2 - x)+2

⇒y=-3 cos x+2

From option B:

y= 3sin(x+ π/2) +2

Using Sin(A+B)= sin A cos B+ cos A sin B, we get

y= 3cosx +2

From option C:

y= 3cos(-x) +2 can be written as y=3cosx+2 (cos(-x)=cosx)

From option D:

y= -3cos x-2

Therefore, options B and C are the correct answer.

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Final answer:

The equivalent functions to y=3 cos x+2 are B: y= 3sin(x+ π/2) +2 and C: y= 3cos(-x) +2, as they use the co-function identity and the even property of the cosine function respectively.

Explanation:

The given function is y=3 cos x+2. We need to find functions that are equivalent to this function. The trigonometric identities necessary for this problem are:

cos(-x) = cos(x), which is the even function property of cosine. sin(x + π/2) = cos(x), which is a co-function identity.sin(-x) = -sin(x), showing that sine is an odd function.

Now, considering the given options:

A. y= 3sin(x-π/2) +2: Using the co-function identity sin(x - π/2) = -cos(x), this option is not equivalent because it would yield y = -3cos(x) + 2, which is not the same as the given function.B. y= 3sin(x+ π/2) +2: By the co-function identity sin(x + π/2) = cos(x), this option is equivalent to the given function.C. y= 3cos(-x) +2: Using the even function property of cosine, this option is equivalent to the given function because cos(-x) = cos(x).

  D. y= -3cos x-2: This is not equivalent because it represents the reflection of the given function over the x-axis and a vertical translation down by 2 units.

Therefore, the equivalent functions are B and C.

help pleases with this question !!!!

Answers

Answer: 2.13

Step-by-step explanation:

1.42/2=0.71

1.42+0.71=2.13

Answer:

The answer to your question is £ 2.13

Step-by-step explanation:

Data

Cost of 1 kg or oranges = £1.42

Cost of the oranges in the scales = ?

Process

1.- Determine the weight of the oranges in the scales.

As we can see the weight of the three oranges is 1.5 kg

2.- Use proportions and cross multiplication to find the cost.

                 1 kg of oranges --------------------- £ 1.42

                 1.5 kg of oranges ------------------   x

                           x = (1.5 x 1.42) / 1

                           x = 2.13 / 1

                           x = £ 2.13

I need help asap my friends

Answers

Answer:

The first one 24/4

Step-by-step explanation:

Into usually means divide when it's used as a math term,

therefore 24 into fourths means 24 divide by 4.

Answer:

the answer is 24 divided by 4

Step-by-step explanation:

These numbers are either whole numbers ,or negative of whole numbers ,they are called __

Answers

Answer:

integers

Step-by-step explanation:

Answer:

Intergers

Step-by-step explanation:

Intergers are a whole number meaning a number that's not a fraction.

A tower is 1964 feet tall. The angle of elevation from the base of an office building to the top of the tower is 37degrees. The angle of elevation from the roof of the office building to the top of the tower is 19degrees.

Answers

To find the height of the office building and the angle of elevation to the top of the tower, we can use the tangent function and solve two equations simultaneously.

To find the height of the office building and the angle of elevation from the base to the top of the tower, we can use the Tangent function.

Tan(angle) = Opposite/Adjacent

For the first angle (37 degrees), the opposite side is the height of the tower (1964 feet) and the adjacent side is the height of the office building.

So, tan(37) = 1964/Adjacent.

For the second angle (19 degrees), the opposite side is again the height of the tower (1964 feet) and the adjacent side is the height of the office building + the height from the roof to the top of the tower.

So, tan(19) = 1964/(Adjacent + Roof Height).

We can solve these two equations simultaneously to find the height of the office building and the height from the roof to the top of the tower.

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A circle with radius of 3cm sits inside a circle with radius of 11cm
What is the area of the shaded region?
Round your final answer to the nearest hundredth.
The larger circle is shaded.

Answers

Answer:

Circular shapes - They are those planner shapes that represent the locus of all the points that has a constant distance from a fixed point on the plane. This constant distance is termed as the radius of the circle and the fixed point is known as the center of the circle.

The center of the circle is enclosed by all the points on its periphery.

The circumference of the circle is the total length of its periphery around the center.

Concentric circles are two circles that have the same center

Step-by-step explanation:

What is the radius of a circle with an area of 28.26 square feet

Answers

Answer:

The radius is 3 square feet.

(Working is shown in the picture)

The radius of a circle with an area of 28.26 square feet is 3 feet

What is Radius?

A radius of a circle or sphere is any of the line segments from its center to its perimeter, and in more modern usage, it is also their length.

What is Area?

Area is the quantity that expresses the extent of a region on the plane or on a curved surface.

What is Circle?

A circle is a shape consisting of all points in a plane that are at a given distance from a given point, the center.

Given,

Area of the circle = 28.26 square feet

Area of the circle = [tex]\pi r^{2}[/tex]

Then

[tex]28.26 =\pi r^{2}\\ r^{2}=9\\ r=\sqrt{9}\\[/tex]

r = 3 feet

Hence, the radius of a circle with an area of 28.26 square feet is 3 feet

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Write a Linear Equation in Slope Intercept Form given the listed slopw and y-intercept.

m = –5, b = –3

Answers

Answer:

The equation is y = -5x - 3.

Step-by-step explanation:

The slope form equation is y = mx+b. So you just have to substitute the m and b value into the equation :

y = mx + b

m = -5

b = -3

y = -5x + (-3)

= -5x - 3

Zad.1 12 pracowników spytano o liczbę dni wykorzystanego urlopu. Oto odpowiedzi: 2, 5, 14, 3, 6, 5, 8, 2, 5, 4, 6, 8. Podaj dominantę i medianę. Zad. 2 13 pracowników spytano o liczbę dni wykorzystanego urlopu. Oto odpowiedzi: 2, 4, 14, 3, 6, 7, 8, 2, 5, 4, 6, 8, 9. Podaj dominantę i medianę. Zad.3 Oblicz dominantę i medianę a)Odległość zamieszkania w km. b) Liczba pracowników a) b) 0-5 5 5-10 25 10-15 30 15-20 55 20-35 30 25-30 20 30-35 15

Answers

Answer:

Taak 1.12

Mediaan is 5 en het gemiddelde is 5,67

Taak 2 13

De mediaan is 6

Het gemiddelde is 6

Standaarddeviatie is 3,32

Variantie is 11

Aantal werknemers is 13

Step-by-step explanation:

Taak.1 12 medewerkers is gevraagd naar het aantal verlofdagen. Hier zijn de antwoorden: 2, 5, 14, 3, 6, 5, 8, 2, 5, 4, 6, 8. Geef de dominante en de mediaan. Taak 2 13 medewerkers is gevraagd naar het aantal vakantiedagen. Hier zijn de antwoorden: 2, 4, 14, 3, 6, 7, 8, 2, 5, 4, 6, 8, 9. Geef de dominante en mediaan. Zad.3 Bereken de dominante en de mediaan a) Verblijfsafstand in km. b) Aantal werknemers a) b) 0-5 5 5-10 25 10-15 30 15-20 55 20-35 30 25-30 20 30-35 15

Taak. 1 12, wordt de mediaan gegeven door

2, 5, 14, 3, 6, 5, 8, 2, 5, 4, 6, 8 herschikken, we krijgen

2, 2, 3, 4, 5, 5, 5, 6, 6, 8, 8, 14

Daarom is de mediaan 5 en het gemiddelde 5,67

Taak 2 13

2, 4, 14, 3, 6, 7, 8, 2, 5, 4, 6, 8, 9 herschikken, we krijgen

2, 2, 3, 4, 4, 5, 6, 6, 7, 8, 8, 9, 14

De mediaan is het zevende nummer in de rij = 6

Het gemiddelde is ook = 6

Standaarddeviatie = 3,32

Variantie = 11

Aantal werknemers = som van frequentie of aantal gegevens = 13.

If f(x)=7(x−1)+8 , what is the value of f(1) ?

Answers

Answer:

8

Step-by-step explanation:

f(1)=7(1-1)+8

f(1)=0+8

f(1)=8

The question is asking us to find the value of the function f(x) = 7(x−1) + 8 when x equals 1. To find this, we substitute 1 in place of x in the equation. So, f(1) = 7(1-1) + 8. Calculating this, 7 multiplied by 0 equals 0, so the equation simplifies to 0 + 8. Therefore, f(1) = 8.

To solve the problem, we must first substitute the value of x in the function `f(x)` which is `7(x−1)+8`.
Here, substitute x = 1:
So we have f(1) = 7*(1-1) + 8.
Simplify the expression inside the parenthesis first (as according to BIDMAS or PEMDAS - operations in parenthetical expressions should be done before multiplication and addition):
7 * (1 - 1) + 8 simplifies to 7 * 0 + 8.
The multiplication operation takes precedence over addition (again per the rules of BIDMAS/PEMDAS), so multiply 7 and 0:
We get 0 + 8.
Finally, perform the addition operation:
0 + 8 equals 8.
So, f(1) = 8.

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The frequency table represents data gathered about how much time some farmers spend tending to their land each week. Complete the conditional relative frequency table by row by identifying the values for each letter. a = b = c = d =

Answers

Answer:

a= 0.6

b= 0.4

c= 0.2

d= 0.8

Step-by-step explanation:

Ons

The value of each letter in the conditional relative frequency table is

a = 0.6b = 0.4c = 0.2d = 0.8

What is the value of each letter?

Division is an arithmetic operation that is used to determine the quotient of two or more numbers. Division entails grouping a number into equal groups using another number.

a = 180 / 300 = 0.6

b = 120 / 300 = 0.4

c = 40 / 200 = 0.2

d = 160 / 200 = 0.80

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Arie has $46 in his account and is saving $8.50 each week. Olga has $14 in her savings account and is saving $12.50 each week. After how many weeks will Arie and Olga have the same in their accounts?

Answers

Answer:

5 weeks until they have the same

Arie and Olga have the same amount in their accounts in 8 weeks.

What is an expression?

An expression is a number, or a variable, or a combination of numbers and variables and operation symbols.

Now it is given that,

Amount in Arie's account = $46

Arie's each week savings = $8.50

Amount in Olga 's account = $14

Olga 's each week savings = $12.50

Let x be the number of weeks when Arie and Olga will have the same amount in their accounts

Total savings of Arie = 8.5x

Total savings of Olga = 12.5x

Amount in Arie's account = 8.5x + 46

Amount in Olga's account = 12.5x + 14

For, Arie and Olga have the same amount in their accounts

8.5x + 46 = 12.5x + 14

Taking alike terms together,

12.5x - 8.5x = 46 - 14

⇒ 4x = 32

Dividing both side by 4 we get,

x =8 weeks

which is the required number of weeks.

Thus, Arie and Olga will have the same amount in their accounts in 8 weeks.

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What is the value of n when (9)^2n-1 = (27)^n+2

Answers

[tex]9^{2n-1} = 27^{n+2} \\ ( {3}^{2} ) ^{2n - 1} = ( {3}^{3} )^{ n + 2} \\ {3}^{4n - 2} = {3}^{3n + 6} \\ 4n - 2 = 3n + 6 \\ 4n - 3n = 6 + 2 \\ n = 8[/tex]

Answer: n=8

Historically, the mean yield of corn in the United States has been 120 bushels per acre with a standard deviation of 12. A survey of 40 farmers this year gives a sample mean yield of 125 bushels per acre . Let p be the mean yield of corn nationally for this year. Supposing that the past standard deviation is still correct, what is the p-value for testing a null hypothesis of mu=120 against an alternative of mu not equal to 20 ? A 0.0041 B 0.0082 C 2.64 D 125

Answers

Answer:

[tex]z=\frac{125-120}{\frac{12}{\sqrt{40}}}=2.64[/tex]    

P-value

Since is a two sided test the p value would be:  

[tex]p_v =2*P(z>2.64)=0.0082[/tex]  

And the best answer would be

B 0.0082

Step-by-step explanation:

Data given and notation  

[tex]\bar X=125[/tex] represent the mean height for the sample  

[tex]\sigma=12[/tex] represent the population standard deviation

[tex]n=40[/tex] sample size  

[tex]\mu_o =120[/tex] represent the value that we want to test

[tex]\alpha[/tex] represent the significance level for the hypothesis test.  

t would represent the statistic (variable of interest)  

[tex]p_v[/tex] represent the p value for the test (variable of interest)  

State the null and alternative hypotheses.  

We need to conduct a hypothesis in order to check if the true mean is 120 or not, the system of hypothesis would be:  

Null hypothesis:[tex]\mu = 120[/tex]  

Alternative hypothesis:[tex]\mu \neq 120[/tex]  

If we analyze the size for the sample is > 30 and we know the population deviation so is better apply a z test to compare the actual mean to the reference value, and the statistic is given by:  

[tex]z=\frac{\bar X-\mu_o}{\frac{\sigma}{\sqrt{n}}}[/tex]  (1)  

z-test: "Is used to compare group means. Is one of the most common tests and is used to determine if the mean is (higher, less or not equal) to an specified value".  

Calculate the statistic

We can replace in formula (1) the info given like this:  

[tex]z=\frac{125-120}{\frac{12}{\sqrt{40}}}=2.64[/tex]    

P-value

Since is a two sided test the p value would be:  

[tex]p_v =2*P(z>2.64)=0.0082[/tex]  

And the best answer would be

B 0.0082

The regular price of a computer is $1200 and the regular price of a printer is $300. The regular price of a computer is 1200 dollars and the regular price of a printer is 300 dollas. An electronics store has a promotion that offers a 40% 40 percent discount on the printer when the computer is purchased at the regular price. What is the total cost of the computer and the printer at the promotional price?

Answers

Answer:

$1380

Step-by-step explanation:

The regular price of a computer is $1200The regular price of a printer is $300.

The electronics store offers a 40% discount on the printer only when the computer is purchased at the regular price.

Discount on the Printer = 40% of $300 =0.4 X 300 =120

Promotional Price of the Printer = $300-120 =$180

Therefore, the total cost of the computer and the printer at the promotional price

=Regular price of a computer + Promotional Price of the Printer

=1200+180

=$1380

The diameter of a circle is 2 inches. What is the circle's area?


Use 3.14 for ​.

Answers

Answer:

3.14

Step-by-step explanation:

Answer:3.14

Step-by-step explanation:

does finding the volume of a solid means the inside or outside of a solid?

Answers

Answer: Inside (depending on your definition).

Step-by-step explanation: Finding the volume of a solid means measuring what space that solid takes up. Volume is a measure of how much matter an object is made up of. Technically, finding the volume of a solid does not mean finding the "inside" or "outside" of a solid. If you are referring to the surface area of a solid as the outside, then the answer to your question would be the inside of the solid.

An underground gasoline storage tank is leaking. The tank currently contains 600 gallons of gasoline and is losing 3.1 gallons per day. If the value of the gasoline is $2.55 per gallon, how quickly is the value of the stored gasoline changing?

Answers

Answer:

-$7.905 per day

Step-by-step explanation:

In this question, given that a tank is losing its fuel content at a certain rate, we are to calculate the rate at which the value in dollars of the content of the fuel tank

is changing

Please check attachment for complete solution and step by step explanation

An underground gasoline storage tank is leaking. The tank currently contains 600 gallons of gasoline and is losing 3.1 gallons per day. The rate at which the value of the stored gasoline is changing is -$7.905 per day.

Suppose we make an assumption that the tank initial contains h(x) gallons of gasoline which leak in x days. Then, the rate of change of gasoline per gallon is;

[tex]\mathbf{\dfrac{dh}{dx} =- 3.1 \ \ \ \ \ \ \text{since the gas is leaking (-)}}[/tex]

Also, the rate of change of the gasoline in time(t) per unit change in the quantity can be computed as:

[tex]\mathbf{\dfrac{dt}{dh}=2.55 }[/tex]

Therefore, the value of the stored gasoline changing per unit change of days can be deduced by using the chain rule:

[tex]\mathbf{\dfrac{dt}{dx} = \dfrac{dt}{dh} \times \dfrac{dh}{dx}}[/tex]

[tex]\mathbf{\dfrac{dt}{dx} = -3.1 \times2.55}[/tex]

[tex]\mathbf{\dfrac{dt}{dx} =\$-7.905 \ per \ day}[/tex]

Therefore, we can conclude that the rate at which the value of the stored gasoline is changing is -$7.905 per day.

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12 rotten tomatoes are usually found in every four boxes.how many rotten tomatoes would likely be found in 14 boxes?

Answers

Answer:

42 tomatoes

Step-by-step explanation:

tomatoes/boxes = tomatoes/boxes

12/4 = x/14

4x/4 = 168/4

x=42

Answer:

42 rotten tomatoes would likely be found in 14 boxes

Step-by-step explanation:

1) Find how many rotten tomatoes are normally found in one box by dividing the amount of rotten tomatoes by the number of boxes they are found in. [tex]12/4=3[/tex]

2) So, now you know that 3 rotten tomatoes are normally found in one box, but the question is asking how many tomatoes would likely be found in 14 boxes which means you need to multiply the amount of rotten tomatoes found in one box by the amount of boxes you want to know about. [tex]3*14=42[/tex]

Solving Square Roots Worksheet (x - k)^2 : Part 1

1. 2(x + 7)^2 = 16

2. (x - 3)^2 = -12

3. -5(n - 3)^2 = 10

Answers

Answer:

1. x = +/- 2[tex]\sqrt{2}[/tex] - 7

2. x = [tex]3[/tex] +/- [tex]2i\sqrt{3}[/tex]

3. n = [tex]2[/tex] +/- [tex]i\sqrt{2}[/tex]

Step-by-step explanation:

1. Divide both sides by 2: (x + 7)^2 = 8

Square root both sides: x + 7 = +/- 2[tex]\sqrt{2}[/tex]

Subtract 7 from both sides: x = +/- 2[tex]\sqrt{2}[/tex] - 7

2. Square root both sides: x - 3 = [tex]\sqrt{-12}[/tex]

Since there is a negative inside the radical, we need to have an imaginary number: [tex]i=\sqrt{-1}[/tex] . So, [tex]\sqrt{-12} =i\sqrt{12} =2i\sqrt{3}[/tex]

Add 3 to both sides: x = [tex]3[/tex] +/- [tex]2i\sqrt{3}[/tex]

3. Divide by -5 from both sides: (n - 2)^2 = -2

Square root both sides: n - 2 = [tex]\sqrt{-2}[/tex]

Again, we have to use i: [tex]n-2=\sqrt{-2} =i\sqrt{2}[/tex]

Add 2 to both sides: n = [tex]2[/tex] +/- [tex]i\sqrt{2}[/tex]

Hope this helps!

Answer:

1. x = 2sqrt(2) - 7, -2sqrt(2) - 7

2. No real solutions

x = 3 + 2sqrt(3) i, 3 - 2sqrt(3) i

3. No real solutions

n = 3 + sqrt(2) i, 3 - sqrt(2) i

Step-by-step explanation:

1. 2(x + 7)² = 16

(x + 7)² = 8

x + 7 = +/- sqrt(8) = +/- 2sqrt(2(

x = 2sqrt(2) - 7, -2sqrt(2) - 7

2. (x - 3)² = -12

A perfect square can never be negative for real values of x

(x - 3) = +/- i × sqrt(12)

x - 3 = +/- i × 2sqrt(3)

x = 3 +/- i × 2sqrt(3)

3. -5(n - 3)² = 10

(n - 3)² = -2

A perfect square can never be negative for real values of x

n - 3 = +/- i × sqrt(2)

n = 3 +/- i × sqrt(2)

Simplify the algebraic expression
6(-4x-7) -4(x-6)
A -20x-18
B -20x-66
C -28x+66
D -28x-18

Answers

6(-4x - 7) - 4(x - 6)       Distribute 6 into (-4x - 7) and -4 into (x - 6)

(6)(-4x) + (6)(-7) + (-4)x + (-4)(-6)  (two negative signs cancel each other out and become positive)

-24x - 42 - 4x + 24    Combine like terms(terms that have the same variable and power/exponent)

-24x - 4x - 42 + 24    (I rearranged the terms to be next to their like term)

-28x - 18      Your answer is D

PLEASE HELP ASAP!Complete the steps to find the area of the trapezoid.
Area of rectangle=
Area of triangle 1=
Area of triangle 2=
Area of triangle 3=
Area of trapezoid=

Answers

just put them how u normally wuld 1 is

3 is 6

4 is 5

2 is 8

5 is 13

Answer: area of the rectangle = 256

area of triangle 1 = 24

area of triangle 2 = 16

area of triangle 3 = 96

area of the trapezoid = 120

You have 80 dollars and play the following game. An urn contains two white balls and two black balls. You draw the balls out one at a time without replacement until all the balls are gone. On each draw, you bet half of your present fortune that you will draw a white ball. What is your expected final fortune

Answers

Answer:

$45

Step-by-step explanation:

In order to find this we need to understand that every time we bet we are selecting white ball. Because of this we have the chance of getting two times right and two times wrong irrespective of the order. For example we can any of the following orders:

White - White - Black - Black

White - Black - White - Black

Black - White - Black - White

Black - Black - White - White

Irrespective of any of the orders above every time our bet is right (we get white urn) the amount of dollars that we have get increased by half of the current amount. For example on the first turn we are betting $40 (half of initial amount = $80) and if we are right we now have $120 with us. This can be written as

1.5*$80 = $120

Similarly if on first turn we get wrong (black ball) then our amount is half of initial which can be written as

0.5*$80 = $40

So now we know that exactly two times we will be right and exactly two times we will be wrong irrespective of the order because the balls are not replaced hence final solution is:

E(X) = 80*1.5*1.5*0.5*0.5

= $45    

Help with this math question and i will give you 40 points and mark you the brainliest

Answers

Answer:

a) CD = 6a + 4.5b

b) k = 4

Step-by-step explanation:

CD = CA + AB

CA = -AC

CD = -3b + 6a + 7.5b

CD = 6a + 4.5b

BC is parallel to CD

BC = BA + AC

BC = ka + 3b

BC is a scalar multiple of CD

Scale factor:

3/4.5 = 2/3

k = ⅔(6)

k = 4

You are feeding a room that is 25‘ x 25‘ there is a window in the room there's 4‘ x 3‘ x 6‘ the paint cost $12 per gallon 1 gallon of paint covers 100 ft.² what is the area of the room

Answers

Answer:

With an assumption of room height = 8 ft we have;

The area of the room is 800 ft²

Area to be painted = 794.667 ft²

Paint required ≈ 7.95 gallons of paint

Cost of paint = $95.36

Step-by-step explanation:

Here we have if the height of the room is taken as 8 ft,

Therefore the total area in the room is 25 × 8 × 4 = 800 ft²

since the room has a window with three sides, therefore a triangular window of dimensions

4 ft by 3 ft by 6 ft

The area of the window is then

[tex]A = \sqrt{6.5(6.5-4)(6.5-3)(6.5-6)}[/tex]

Where the semi perimeter = (4 + 3 + 6)/2 = 6.5

Area of window, A = 5.333 ft²

Therefore, the total area to be painted = 800 ft² - 5.333 ft² = 794.667 ft².

Therefore the number of gallons of paint required ≈ 7.95 gallons

Cost of paint= $12 × 7.95 = $95.36.

PLEASE HELP
factor 12n - 18.

Answers

I think the answer is 6(2n-3)

Here is your answer 6(2n-3)

"Benny decided to look at the price of new and used vans. Benny found a used van for $3000. Benny found that he paid 20% of the price of a new van. How much would a new van cost?"

Answers

Answer:

$15000

Step-by-step explanation:

We have that the value of the truck is $ 3000 and that this payment is equivalent to 20% of the value of a new truck, therefore the value of the new truck would be:

% of value         value

      20               3000

     100                  x

x = 100 * 3000/20

x = 15000

therefore the value of the new truck is $ 15000

Dennis has three identical ​cylinders​ filled with water. How many ​cones should he be able to fill with the water if the cones have the same radius and the same height as the cylinders?

Answers

Answer:

3 cylinder will fill 9 cones with water

Step-by-step explanation:

This problem bothers on mensuration of slides, cone and cylinder

We know that the

Volume of a cylinder = πr²h

Volume of a cone = 1/3(πr²h)

Given that both cylinder and cone has same height and radius

From the given expression we can deduce that the cone is 3 times smaller than the cylinder in volume

So if 1 cylinder will fill 3 cones

Then 3 cylinders will fill x cones

By cross multiplication we have

x= 3*3cones

x= 9 cones

Hence 3 cylinder will fill 9 cones with water

Answer:

9 cones

Step-by-step explanation:

The formula to find a volume of a cylinder is:

V1 = pi*r^2*h

Where r is the base radius and h is the height

The formula to find a volume of a cone is:

V2 = (1/3)*pi*r^2*h

So, if they have the same base radius and same height, we have that:

V1/V2 = 1/(1/3) = 3

The volume of the cylinder is 3 times bigger than the volume of the cone, so each cylinder of water can fill 3 cones.

Is Dennis has 3 cylinders, he is able to fill 3*3 = 9 cones with water.

Each month, Jeremy adds the same number of cards to his baseball card collection. In Jeremy, he had 36. 48 in February. 60 in March. How many baseball cards will Jeremy have in April

Answers

Jeremy will have 72 baseball cards in April.

What is a consecutive pattern?

A consecutive pattern refers to a sequence or order of numbers, letters, or other objects in which each follows in direct and uninterrupted succession from the one that precedes it.

We have,

To solve this problem, we need to determine the pattern of how many cards Jeremy adds to his collection each month.

To do this, we can find the difference between consecutive months:

February minus January: 48 - 36 = 12

March minus February: 60 - 48 = 12

We can see that Jeremy is adding 12 cards to his collection each month.

So to find out how many cards he will have in April, we can add 12 to the number he had in March:

April

= 60 + 12

= 72

Therefore,

Jeremy will have 72 baseball cards in April.

Learn more about consecutive patterns here:

https://brainly.com/question/13949920

#SPJ2

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