Please help me answer this

Please Help Me Answer This

Answers

Answer 1

Answer:

B. 3

Step-by-step explanation:


Related Questions

3 3/4 divided by 5/7

Answers

Answer:

[tex]\frac{21}{4}[/tex]

Step-by-step explanation:

So to start, you need to make 3 [tex]\frac{3}{4\\}[/tex] into an improper fraction, which will give you [tex]\frac{15}{4}[/tex]. Then to make it easier, instead of dividing it by [tex]\frac{5}{7}[/tex], multiply it by the reciprocal ( [tex]\frac{7}{5}[/tex] )

Your new expression should look like this:

    [tex]\frac{15}{4}[/tex] x [tex]\frac{7}{5}[/tex]

To make it even easier, you can simplify this expression even further. Looking at the numerators and denominators, we see that we have a 15 on top and a 5 on the bottom. Cross out the 5 and put a 1 in its place since 5 goes into 5 one time! Now we have to do it to the 15... Cross out the 15 and put a 3 since 5 goes into 15 three times!

Your simplified expression should look like this:

    [tex]\frac{3}{4}[/tex] x [tex]\frac{7}{1}[/tex]

Now, just multiply the numerators and the denominators to get your final answer of

    [tex]\frac{21}{4}[/tex]

Since you cannot simplify this anymore, that is your answer!!!

Answer:

3/28

Step-by-step explanation:

*Click on the photo*
I’m really confused so thanks if you help me out I really appreciate it :D

Answers

Answer:

It would be 8.

Step-by-step explanation:

Since in the first answer the man was 6 feet and his shadow was 3, you divide 16 by 2. After dividing you get 8 feet.

Answer:

it would be 8 because 6/3 is 2 and 16/2 is 8

Wind power P from a turbine varies directly as the square of the length r of one ofits blades. Two common blade lengths for commercial wind turbines are 35m and 50m. When the blade length is 35m about 1.5 megawatt of power is produced under favorable conditions. How much power would be produced, under favorable conditions, by a turbine with 50m blades.

Answers

Answer:

3.06 megawatts

Step-by-step explanation:

Firstly, we write the proportionality equation.

wind power varies directly as the square of the length r of one of the blades;

P ∝ r^2

Let’s introduce a constant of proportionality k; This means;

P = kr^2

Now let’s calculate the value of k when 1.5 megawatts and r is 35m

1.5 mw = 35^2 * k

k = 1.5/35^2 = 1.5/1225 = 0.001224489796 MW/m^2

Now we want to calculate the amount of megawatts to be produced by a turbine with 50m blades.

That would be;

P = 0.001224489796 * 50^2 = 3.06 megawatts

Answer:

Step-by-step explanation:

If two variables are directly proportional, it means that an increase in the value of one variable would cause a corresponding increase in the other variable. Also, a decrease in the value of one variable would cause a corresponding decrease in the other variable.

Given that P varies directly with r², if we introduce a constant of proportionality, k, the expression becomes

P = kr²

If P = 1.5 when r = 35, then

1.5 = k × 35²

k = 1.5/35² = 1.5/1225

Therefore, the direct variation function is

P = 1.5r²/1225

When r = 50, then

P = 1.5 × 50²/1225

P = 3.06 megawatt

I need help with this^

Answers

Answer:

If it is asking for the order of the letters, it would be: Δ J H E

Explanation:

You have to put the letters in the same order that they were on the first triangle.

Hope this helps!!  :)

25 POINTS PLS HELPPP WITH MATH

Answers

Answer:

1. 23.55 in

2. 102.36 mm

Step-by-step explanation:

The circumference of a circle is calculated by the formula: [tex]C=\pi d=2\pi r[/tex] , where d is the diameter and r is the radius.

We can use this to answer both problems.

1. Since the diameter is 7.5 inches, then d = 7.5. Substitute this into the equation: [tex]C=\pi *7.5=3.14*7.5=23.55[/tex]. So, the circumference is 23.55 inches.

2. Here, the radius is 16.3 mm, so r = 16.3. Substitute this into the equation: [tex]C=2\pi r=2*3.14*16.3=102.364=102.36[/tex]. So, the circumference is 102.36 mm.

Hope this helps!

Answer:

1) 23.55 inches

2) 102.36 mm

Step-by-step explanation:

C = pi × d

1) C = 3.14 × 7.5

= 23.55

C = 2 × pi × r

2) C = 2 × 3.14 × 16.3

= 102.364 mm

What is the slope of the line that contains the points (-2,2) and (3,4)?

Answers

Use the slope formula to find slope m. y2-y1/x2-x1

m=2/5

Answer:i would say A i think

Step-by-step explanation:

What is the maximum number of times a line can cross the X axis

Answers

The line y = 0 will be having an infinite number of x-intercepts thus a line can cross the x-axis infinite times.

What is a line segment?

A line section that can connect two places is referred to as a segment.

The line extends endlessly in both directions.

A line segment is just part of a big line that is straight and going unlimited in both directions.

If two lines intersect each other at a point then the number of intersections will be only one,

It is because the line away from the intersection goes away with the line.

But if two lines are on each other having an infinite number of intersections.

For example the intersection of line y = 0 with the x-axis.

Hence "The line y = 0 will be having an infinite number of x-intercepts thus a line can cross the x-axis infinite times".

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16.8 cm
Circle circumference

Answers

Answer: 5.2752

Step-by-step explanation: multiply 16.8 by pie 3.14 then you have the answer

Anyone understand this

Answers

Answer:

[tex]d = \sqrt{3} * a = \sqrt{3} * 5 = 8.7[/tex]

Step-by-step explanation:

plz give brainliest

Classify the following polynomials by degree and number of terms

Answers

Answer:

degree: linear

terms: binomial

Step-by-step explanation:

The polynomials are :

↬ binomial↬ a third-degree binomial

Solution :

To classify polynomials, we look at the number of terms and the degree of the polynomial.

 Number of Terms

monomial - 1 term

binomial - 2 terms

trinomial - 3 terms

polynomial - 4 terms or more

 Degree (highest exponent)

first

second  (quadratic)

third

fourth (quartic)

etc.

_________________

[tex]\pmb{3x+12}[/tex] has 2 terms and its highest exponent is 1. Hence it's a binomial.

[tex]\pmb{x^3-8}[/tex] has 2 terms and its highest exponent is 3, hence we have a third-degree binomial.

What is the least common multiple of 8 and 14?
A. 14 . B. 42 c. 56
D. 112

Answers

C. 56 because that is the first thing both of them fo into. Hope that helps!

Answer:

C: 56

Step-by-step explanation:

Hi there,

To find the least common multipul (LCM) of 8 and 14, you can list off the multipules of each, and see what they have in common.

Multiples of 8:

8, 116, 24, 32, 40, 48, 56, 64, 72, 80, 88, 96, 104, 112

Multiples of 14:

14, 28, 42, 56, 70, 84, 98, 112, 126, 140, 154, 168, 182

When you list off the multipules of both numbers, they have 56, and 112, in common. The problem is asking for the least common multiple the answer is 56.

Hope this helps!

- Emily

The diagram shows a 7cm x 6cm rectangle-based pyramid all the diagonal sides - TA TB TC and TD are length 10cm M is the midpoint of the rectangular base work out the height MT to one decimal place

Answers

Height MT of the pyramid will be 8.9 cm

    Given in the question,

Dimensions of the rectangular base = 7 cm × 6 cmM is the center of the rectangular base.Slant height of the pyramid = 10 cm

Since, diagonals of a rectangle bisect each other, point M will be the midpoint of the diagonal AC.

By applying Pythagoras theorem in right triangle ΔABC,

AC² = AB² + BC²

AC = [tex]\sqrt{AB^2+BC^2}[/tex]

AC = [tex]\sqrt{6^2+7^2}[/tex]

AC = [tex]\sqrt{85}[/tex]

Therefore, AM = [tex]\frac{\sqrt{85} }{2}[/tex]

AM = 4.61 cm

Apply Pythagoras theorem in right triangle ΔAMT,

AT² = AM² + TM²

TM = [tex]\sqrt{AT^2-AM^2}[/tex]

TM = [tex]\sqrt{(10)^2-(4.61)^2}[/tex]

     = [tex]\sqrt{78.7479}[/tex]

     = 8.874

     ≈ 8.9 cm

    Therefore, height MT of the pyramid will be 8.9 cm.

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An aquarium is in the shape of a cube. The aquarium can hold between 4096 cubic inches and 8000 cubic inches of water. What are the possible side lengths of the aquarium?

Answers

Final answer:

The possible side lengths for a cubic aquarium that can hold between 4096 cubic inches and 8000 cubic inches of water are between 16 inches and 20 inches.

Explanation:

To find the possible side lengths of an aquarium in the shape of a cube that holds between 4096 cubic inches and 8000 cubic inches of water, you need to find the cube root of each volume since the volume of a cube is V = s³, where s is the side length.

For the minimum volume (4096 cubic inches):
[tex]\sqrt[3]{4096}[/tex] = 16 inches.

For the maximum volume (8000 cubic inches):

[tex]\sqrt[3]{8000}[/tex] = 20 inches.

Hence, the side lengths of the aquarium must be between 16 inches and 20 inches.

The value of sales at a shop decreases from £145000 a year to £129000. Find the percentage decrease in the values of sales.

Answers

Answer:

Percentage of decrease in Sales = 11.04% or 11 %

Step-by-step explanation:

Decrease Percentage = [(Original Value - New Value) ÷ Original Value] × 100 

Percentage = [(145,000 - 129,000) ÷ 145,000] × 100

Percentage = [(16,000) ÷ 145,000] × 100

Percentage = (0.1104) × 100

Percentage of decrease in Sales = 11.04% or 11 %

please help!! 20 points!

Answers

Answer: First choice

Sq rt of 3 X sq rt of 2 = sq rt of 6 which is irrational

Sq rt of 12 and sq rt of 3 = sq rt of 36 which = 6 rational

Sq rt of 5 plus sq rt of 2 is irrational

Sq rat of 9 plus sq rt of 4 is 3+2=5 rational

Step-by-step explanation:

What are the coordinates of vertex F" of F"G"H"?

(4, -1.5)

(4, 0.5)

(-1.5, 4)

(-0.5, 4)

Answers

Answer:(4,-1.5)

Step-by-step explanation:

You’d be adding 5,-0.5 to the respective coordinates. Point F’ is located at -1,-1 so you’d be adding 5 to -1 for the x coordinate and -0.5 to -1 for the y coordinate.

Solve the equation: 4m - 7 = - 19

Answers

-3 because 4 times -3 = -12 -7=-19

Answer:

m = - 3

Step-by-step explanation:

- 19 + 7 = -12

- 12 ÷ 4 = -3

what is the difference between 3/5 and 3/10

Answers

Well, whenever you are working with fractions with different denominators, you would multiply both the top and the bottom of the fraction with the smaller number as the denominator. (You could also divide the larger denominator number.) So let's see what number we can multiply by 5 to get 10. That would be 2. Then we would multiply the numerator by two as well. So what is 3 times 2? 6. Once you've done that, you get 6/10 or 0.6 in decimal form. The difference would be 0.3 or 3/10. :)

A study conducted by a local university found that 25 percent of college freshmen support increased spending on environmental issues. If 6 college freshmen are randomly selected, find the probability that fewer than 4 support increased spending on environmental issues.

Answers

Answer:

13.18% or 0.1318

Step-by-step explanation:

please see the attached files for explanation

How to find the direct variation of x=2, y=8

Answers

Answer:

y = 4x

Step-by-step explanation:

Given that y and x vary directly then the equation relating them is

y = kx ← k is the constant of variation

To find k use the condition that x = 2, y = 8

8 = 2k ( divide both sides by 2 )

4 = k, thus

y = 4x ← equation of variation

y=4x is the answer :)

is this expression contain a variable?
7+15n​

Answers

Answer:

yes

Step-by-step explanation:

n

Yes the variable is “n”

Allison owns a trucking company. For every truck that goes out, Allison must pay the driver $11 per hour of driving and also has an expense of $1 per mile driven for gas and maintenance. On one particular day, the driver drove an average of 15 miles per hour and Allison's total expenses for the driver, gas and truck maintenance were $286. Write a system of equations that could be used to determine the number of hours the driver worked and the number of miles the truck drove. Define the variables that you use to write the system.

Answers

Answer:

y = 15x

11x + y = 286

where

y = number of miles driven by the truck driver

x = number of hours the truck driver drives

Solving this gives, x = 11 hours and y = 165 miles.

Step-by-step explanation:

Let the number of hours the truck driver drives be x.

Let the number of miles driven by the truck driver be y.

Since the truck driver drives at 15 miles per hour, the number of miles covered by the driver y, can be given from the speed equation.

Speed = (distance/time)

15 = (y/x)

y = 15x.

And the drivers are paid $11 per hour of driving and also has an expense of $1 per mile driven for gas and maintenance.

Meaning that on a day that the truck driver drives y miles for x hours, the total pay, C, is given as

C = 11x + 1y = 11x + y

So, on this fateful day, the total amount paid to a truck driver was $286

So, C = $286

11x + y = 286.

So, the two equations for the scenarios are

y = 15x

11x + y = 286

Solving this gives, x = 11 hours and y = 165 miles.

Hope this Helps!!!

The system of a linear equation that could be used to determine the number of hours the driver worked and the number of miles the truck drove is : (11x + y = 286) and (y = 15x).

Given :

Allison owns a trucking company. For every truck that goes out, Allison must pay the driver $11 per hour of driving and also has an expense of $1 per mile driven for gas and maintenance. On one particular day, the driver drove an average of 15 miles per hour, and Allison's total expenses for the driver, gas, and truck maintenance were $286.

The following steps can be used in order to determine the system of linear equations:

Step 1 - Let the total number of miles be 'x' and the total number of hours be 'y'.

Step 2 - The linear equation that represents the total expenses for the driver, gas, and truck maintenance is given by:

11x + y = 286

Step 3 - The linear equation that represents the situation that the driver drove an average of 15 miles per hour is given by:

y = 15x

So, the system of a linear equation that could be used to determine the number of hours the driver worked and the number of miles the truck drove is : (11x + y = 286) and (y = 15x).

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What’s 2 plus 2 plus 3 plus 5 plus 7

Answers

The answer for this question is 19

Answer:

The answer is 19

Step-by-step explanation:

2 + 2 = 4

3 + 5 = 8

4  + 8 = 12

12 + 7 = 19

One digit in each of these identification numbers of a postal money order is smudged. Can you recover the smudged digit, indicated by a Q, in each of these numbers? a) 493212Q0688 b) 850Q9103858 c) 2Q941007734 d) 66687Q03201

Answers

Answer:

a) Q = 0 or 9

b) Q = 5

c) Q = 7

d) Q = 8

Step-by-step explanation:

We assume the postal money order to be of the United State. A smudged digit is calculated using the following algorithm.

1. Add first 10 digits of 11-digit number.

2. Divide the sum of the 10 numbers by 9.

3.The remainder is the smudged digit.

4.The smudged digit is appended to the end of the ID number or anywhere in the number.

It is calculated as:

[tex]x_{11} = (x_{1} + x_{2} + x_{3} + x_{4} + x_{5} + x_{6} + x_{7} + x_{8} + x_{9} + x_{10} )mod 9[/tex]

a) 493212Q0688

[tex]8 = (4 + 9 + 3 + 2 + 1 + 2 + Q + 0 + 6 + 8) mod 9\\8 = (Q + 35) mod 9\\8 = Q mod 9 + 35 mod 9\\8 = Q mod 9 + 8\\Q mod 9 = 8 - 8\\Q mod 9 = 0\\Q = 0 or 9[/tex]

Therefore, Q is either 0 or 9.

b) 850Q9103858

[tex]8 = (8 + 5 + 0 + Q + 9 + 1 + 0 + 3 + 8 + 5) mod 9\\8 = (Q + 39) mod 9\\8 = Q mod 9 + 39 mod 9\\8 = Q mod 9 + 3\\Q mod 9 = 8 - 3\\Q mod 9 = 5\\Q = 5[/tex]

Therefore, Q is 5 because from Q mod 9 = 5, we have Q = 5 mod 9.

c) 2Q941007734

[tex]4 = (2 + Q + 9 + 4 + 1 + 0 + 0 + 7 + 7 + 3) mod 9\\4 = (Q + 33) mod 9\\4 = Q mod 9 + 33 mod 9\\4 = Q mod 9 + 6\\Q mod 9 = 4 - 6\\Q mod 9 = -2\\Q = -2 mod 9\\Q = 7[/tex]

Therefore, Q is 7 because we have to cancel out the negative sign by adding the modulo base (9) to the negative number: -2 + 9 = 7.

d) 66687Q03201

[tex]1 = (6 + 6 + 6 + 8 + 7 + Q + 0 + 3 + 2 + 0) mod 9\\1 = (Q + 38) mod 9\\1 = Q mod 9 + 38 mod 9\\1 = Q mod 9 + 2\\Q mod 9 = 1 - 2\\Q mod 9 = -1\\Q = -1 mod 9\\Q = 8[/tex]

Therefore, Q is 8 because we have to cancel out the negative sign by adding the modulo base (9) to the negative number: -1 + 9 = 8.

For the given postal money order scenarios, the smudged digit, Q, is determined as follows: Scenario a - either 0 or 9, Scenario b - 5, Scenario c - 5, and Scenario d - 3.

Let's analyze the given postal money order scenarios and determine the smudged digit, Q, using the provided algorithm:

Scenario a:

ID number: 493212Q0688

Sum of the first 10 digits: 4 + 9 + 3 + 2 + 1 + 2 + 0 + 6 + 8 + 8 = 43

43 divided by 9 equals 4 with a remainder of 7.

Therefore, the smudged digit, Q, is either 0 or 9.

Scenario b:

ID number: 850Q9103858

Sum of the first 10 digits: 8 + 5 + 0 + 9 + 1 + 0 + 3 + 8 + 5 + 8 = 47

47 divided by 9 equals 5 with a remainder of 2.

Therefore, the smudged digit, Q, is 5.

Scenario c:

ID number: 2Q941007734

Sum of the first 10 digits: 2 + 7 + 9 + 4 + 1 + 0 + 0 + 7 + 7 + 3 = 40

40 divided by 9 equals 4 with a remainder of 4.

To cancel out the negative sign in the remainder, we add the modulo base (9) to the negative number: -4 + 9 = 5.

Therefore, the smudged digit, Q, is 5.

Scenario d:

ID number: 66687Q03201

Sum of the first 10 digits: 6 + 6 + 6 + 8 + 7 + 0 + 3 + 2 + 0 + 1 = 33

33 divided by 9 equals 3 with a remainder of 6.

To cancel out the negative sign in the remainder, we add the modulo base (9) to the negative number: -6 + 9 = 3.

Therefore, the smudged digit, Q, is 3.

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John works as a tutor for an hour and as a waiter for an hour. This month, he worked a combined total of hours at his two jobs. Let be the number of hours John worked as a tutor this month. Write an expression for the combined total dollar amount he earned this month.

Answers

Correct Question:

John works as a tutor for $12 an hour and as a waiter for $8 an hour. This month, he worked a combined total of 86 hours at his two jobs.

Let be the number of hours John worked as a tutor this month. Write an expression for the combined total dollar amount he earned this month.

Answer:

Total hours = 86

Let t is the hours he spent on tutoring

then (86-t) is hours spent on waiting

Let Y is the total amount in dollars which is required .

Now;

y = (tutoring hours x 12$) + (waiting hours x 8$)

Y = 12t + 8(86-t)

1/8 + c = 4/5
c =
Solve the equation.

Answers

Answer:

c = 27/40.

Step-by-step explanation:

1/8 + c = 4/5

1/8 - 1/8 + c = 4/5 - 1/8

c = 4/5 - 1/8

c = 32/40 - 5/40

c = 27/40.

The hypotenuse of a right triangle is 26 mm. One leg of the right triangle is 10 mm. What is the length of the other leg? 80 mm 20 mm 24 mm 28 mm

Answers

Answer:

Step-by-step explanation:

10^2 + b^2 = 26^2

100 + b^2 = 676

-100 -100

b^2 = 576

square root of b equals b

square root of 576 equals 24

The other leg equals 24

Answer:

24mm

Step-by-step explanation:

Using Pythagoreans Theorem, a^2+b^2=c^2

a^2+10^2=26^2

a^2+100=676

a^2=576

a= sqrt 576

a=24mm

A bonsai tree is 18 inches wide and stands 2 feet tall. What is the ration of the width of the bonsai to its height?

Answers

Answer:

3:4

Step-by-step explanation:

Before we start to deal with the ratio, we need all lengths in the same units.

The width is 18 inches.

The height is 2 feet.

Let's convert the height to inches. Then we will have both dimensions in the same units, inches.

2 ft * (12 in.)/ft = 24 in.

Now we have:

width = 18 in.

height = 24 in.

ratio of width to height = 18 in. to 24 in. = 18/24 = 3/4 = 3:4

Is ĀB parallel to CD? Explain.

Answers

Answer:

slope of AB = 1-(-3)/0-(-3)

= (1+3)/3 = 4/3

Slope of CD = -1-(-5)/3-0

=(-1+5)/3 = 4/3

Both AB and CD are parallel because their slopes are equal.

Find the volume of the cylinder help please

Answers

Answer: 18π units³ or 56.52 units³

Step-by-step explanation: Notice that the figure shown here is a cylinder. To find the volume of a cylinder, start with the formula for the volume of a cylinder which is shown below.

Volume = πr²h

Here, notice that our cylinder has a radius

of 3 units and a height of 2 units.

So we have (π)(3 units)²(2 units).

Start by simplifying the exponent.

(3 units)² is (3 units)(3 units) or 9 units².

So we have (π)(9 units²)(2 units).

Now, (9 units)²(2 units) is 18 units³.

So we have 18π units³.

So the volume of the cylinder shows here is 18π units³.

Remember that π is approximately equal to 22/7 or 3.14. So we can estimate the value of the volume by plugging in 3.14 for π.

So we have (18)(3.14) which is equal to 56.52.

So the value of the volume is approximately 56.52 units³.

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False You drop a ball from a stair case that is 36 ft high. By the time you get down the stairs to measure the height of the bounce, the ball has bounced four times and has a height of 2.25 ft after its fourth bounce. How high did the ball bounce after it first hit the floor? A goods-producing location decision would likely emphasize the importance of ___________ Which of the following graphic design movements was highly influenced by traditional Japanese art and had borders marked by stylized, plant-like vines, and typography that mimicked the flowing curves of the graphic elements? Two rods are made of brass and have the same length. The cross section of one of the rods is circular, with a diameter of 2a. The other rod has a square cross section, where each side of the square is a length 2a. One end of the rods is attached to an immovable fixture which allows the rods to hang vertically. To the free end of each rod, a block of mass m is attached. Which rod, if either, will stretch more after the block is attached?A. The one with the circular cross section will stretch more.B. The one with the square cross section will stretch more.C. Both will stretch by the same amount.D. One cannot say which will stretch more without knowing the numerical values of a and m. Where are most of China's industrial regions located? *OIn the westONear the border with MongoliaOAlong the east coastOAlong the Yellow River (Huang He) I need help on this on my bros 1) Which state of matter have the strongest forces between particles?2) Which state of matter have the weakest forces between particles?3) Which state of matter has fixed volume but not shape?4) Which state of matter does not have fixed shape and volume?5) Which state of matter has fixed shape and volume? what is the purpose of glycogen Will mark brainiest Read this excerpt from the article "Clemente's Impact Wanes in Puerto Rico 40 Years after His Death.""We headed out to the beach closest to the crash area and it was packed with people. It was devastating news for everybody,'' says former major league pitcher Jose Santiago, a close friend of Clemente. "People were going, 'Are you sure he boarded the plane? Maybe he didn't. Or claiming, 'Oh, he's got to be alive.' Some would say, 'He's clinging to a rock in one of those little islands out there.' "What can best be inferred from this excerpt?Clementes friends and fans did not want to believe that he was dead.Jose Santiago grew up in the same neighborhood as the Clemente family.Clementes plane landed safely on a deserted island.Clemente was a skilled swimmer with survival training. A cereal box is 6 1/2 inches long ,3 1/2 inches wide , and 12 inches high .What is the volume of the box?