please helpppp (::: this is hard

Answer:

I believe 2 batteries

Step-by-step explanation:

17.4 pounds from monday + 13.3 from Tuesday= 30.7 pounds.

30.7 pounds times $0.40 is $12.28

12.28/5.5 is 2.327272727...

You cant buy .3 of a batter so the answer should be 2

Answer:

[tex]\sin(\theta_1) =\frac{\sqrt{55} }{8}[/tex]

Step-by-step explanation:

The angle [tex]\theta_1[/tex] is located in Quadrant I and [tex]\cos(\theta_1)=\frac{3}{8}[/tex]

From Trigonometric ratio, In the First Quadrant

[tex]\cos \theta=\frac{Adjacent}{hypotenuse}[/tex]

Adjacent =3, Hypotenuse =8

Using Pythagoras Theorem

[tex]Hypotenuse^2=Opposite^2+Adjacent^2\\8^2=Opposite^2+3^2\\Opposite^2=64-9=55\\Opposite=\sqrt{55}[/tex]

Therefore:

[tex]\sin(\theta_1)=\frac{Opposite}{Hypotenuse}\\\sin(\theta_1) =\frac{\sqrt{55} }{8}[/tex]

Answer:

$1.49 per pound of bananas at Smiths

Step-by-step explanation:

1. 10 pounds is $14.90

2. Find how much one pound costs by dividing 14.90 by 10

3. 14.90/10= 1.49

4. $1.49 per pound of bananas at Smiths

Answer:

The area of the interior tiles must be 7 inches ² with dimensions 1.871" x 3.742".

Step-by-step explanation:

Since the interior tiles must be 3.5 larger then the border tiles to calculate the dimensions of the interior tiles we first need to find the area of the border tiles. This is shown bellow:

area border = 1*2 = 2 inches²

The area of the interior tiles is 3.5 larger than that, so we have:

area interior = 2*(area border) = 2*3.5 = 7 inches²

In order to maintain the same proportions as the border tiles we must find a width that is two times the height, so we have:

area interior = width*height = 2*height*height = 2*height²

7 = 2*height²

height² = 3.5

height = sqrt(3.5) = 1.871

width = 2*height = 2*1.871 = 3.74166

The area of the interior tiles must be 7 inches ² with dimensions 1.871" x 3.742".

The interior tiles that Ryan wants to use in his bathroom will have dimensions of 3.5 inches by 7 inches.

Ryan is using 1" x 2" tiles for the border of his bathroom and wants to use similar tiles for the interior that are larger by a scale factor of 3.5.

To calculate the dimensions of the interior tiles, you simply multiply the dimensions of the border tiles by the scale factor. Therefore, the dimensions of each interior tile will be:

2 inches (width of border tile) x 3.5 = 7 inches (width of interior tile)

Answer:

The question not complete

Answer: B) (x-1)2+(y+1)2= 25 radius = 5 miles

Step-by-step explanation:

In order to get this answer you see that you are adding a negative to x in the first part then multiplying it by 2. Second, you add y+1 then multiplying it by 2. You get the radius of 25 which equals 5 miles. Look at the graph to also check your answers to the problem.

Answer:

B) (x-1)2+(y+1)2= 25 radius = 5 miles

Step-by-step explanation:

Equation of a circle:

(x - h)² + (y - k)² = r²

(h,k) = (1, -1)

r = 5

(x - 1)² + (y - -1)² = 5²

(x - 1)² + (y + 1)² = 25

If she goes 75 mph for 2 hours, that's 150 miles altogether. 45 mph for 1 hour is 45 miles, so 150 + 45 is 195 miles.

The total distance that Mishka covers on her road trip is 195 miles.

Two or more expressions with an Equal sign is called as Equation.

To calculate the total distance covered on the road trip

we need to add the distances traveled on the highway and side roads.

Distance on the highway = speed × time

= 75 mph × 2 hours

= 150 miles

Distance on side roads = speed × time

= 45 mph × 1 hour

= 45 miles

Total distance covered = Distance on the highway + Distance on side roads = 150 miles + 45 miles

= 195 miles

Therefore, the total distance that Mishka covers on her road trip is 195 miles.

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Answer: B and C because I got it correct so trust me

Step-by-step explanation:

Ez

Answer:

B. 8ft

Step-by-step explanation:

The perimeter of a rectangle is given by

P = 2(l+w) where l is the length and w is the width

Substituting in the given values

48 = 2(16+w)

Divide each side by 2

48/2 = 2/2(16+w)

24 = 16+w

Subtract 16 from each side

24-16 =16+w-16

8 =w

Answer:

272.04

Step-by-step explanation:

We must make a weighted average, as follows:

Each mean will have its weight, which would be the number of observations, therefore, the initial mean has a weight of 100.

And the final mean that we do not know its value but if its 94 (100 - 6) and the other mean that it is 688 and its weight is 6, we have the following equality:

100 * 297 = 688 * 6 + 94 * x

x would be the final mean, solving:

x = (29700 - 4128) / 94

x = 272.04

average after removing those 6 is 272.04

A 90° counterclockwise rotation is the same as a 270° clockwise rotation. A 180° rotation is the same as a reflection across both axes. A 90° clockwise rotation is the same as a 270° counter-clockwise rotation. Two separate rotations of 90° counter-clockwise and then 180° are the same as rotations of 90° clockwise and then 180°.

In mathematics, especially in geometry, transformations involve changing the position, size or shape of a figure. The question is about matching specific transformations or sequence of transformations to its equivalent transformation.

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Final answer:

The solution to the system of equations is x = 1 and y = 6.

Explanation:

The given equations are:

3x + 2y = 15

y = 6x

To solve this system of equations, we can substitute the value of y from the second equation into the first equation:

3x + 2(6x) = 15

3x + 12x = 15

15x = 15

x = 1

Substituting the value of x into the second equation to find y:

y = 6(1)

y = 6

So, the solution to the system of equations is x = 1 and y = 6.

Answer:

[tex] {x}^{2} + 10x + 21[/tex]

Step-by-step explanation:

[tex](x + 7)(x + 3) \\ = x(x + 3) + 7(x + 3) \\ = {x}^{2} + 3x + 7x + 21 \\ \purple{ \bold{= {x}^{2} + 10x + 21}}[/tex]

Answer:

$35 x + $25 y ≥ $3200           x ≤ 120

Step-by-step explanation:

Because she needs to write before type the page, so that y≤x

∴ x≤120

$35 x + $25 y ≥ $3200           x ≤ 120

Final answer:

The system of inequalities for the teacher's summer work with the textbook company is 35x + 25y \\( ext{≥}) 3200, x + y \\( ext{≤}) 120, x \\( ext{≥}) 0, and y \\( ext{≥}) 0, where x is pages written and y is pages typed.

Explanation:

The system of inequalities to represent the situation where a teacher works for a textbook company during the summer, earns $35 per page for writing the material and $25 per page for typing, wants to earn at least $3200, and does not want more than 120 pages of work would be:

35x + 25y \\( ext{≥}) 3200

x + y \\( ext{≤}) 120

x \\( ext{≥}) 0

y \\( ext{≥}) 0

Here, x represents the number of pages written and y represents the number of pages typed. The first inequality ensures the teacher earns at least $3200, the second inequality ensures the total number of pages does not exceed 120, and the last two inequalities represent that the teacher cannot write or type a negative number of pages.

Answer:

No solutions

Step-by-step explanation:

The graph does not contact the x axis

There are no real answers for this reason.

Answer: 190

Step-by-step explanation: The perimeter is the measurement of every side. So multiply 29 by 2 To get 58 since there is two sides with that length. You'd then multiply 66 by 2 to get 132 For the same reason, and then finally add both of those together to get 190

Answer: E simple random

Step-by-step explanation:

A simple random sample in a statistics is a subset of individuals chosen from a larger set. Each individual is chosen randomly and entirely by chance, such that each individual has the same probability

The type of sampling used in this scenario is simple random sampling(E), where each member of the population has an equal chance of being chosen.

The type of sampling used in this scenario is simple random sampling(option E).

In simple random sampling, each member of the population has an equal chance of being chosen.

In this case, since the cards are placed in a bag and three names are picked, each card has an equal probability of being selected, making it simple random sampling.

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Answer: 8 i

Step-by-step explanation: The square root of negative 64 is 8 i. Whenever you are finding a negative square root you need to find what times what will equal that number. 8 x 8 = 64. So the square root is 8. But, since we are finding a negative square root, the answer will be 8 i. i states that 8 is the negative square root of 64.

So the answer is 8 i.

Always add i after the number when finding negative square roots.

The calculated common ratio of the sequence is 4/5

How to determine the common ratio of the sequence

From the question, we have the following parameters that can be used in our computation:

[tex]F(n) = 45 \cdot (\frac45)^{n - 1}[/tex]

By definition:

A geometric sequence is represented as

[tex]F(n) = ar^{n-1}[/tex]

Where, the common ratio is r

By comparison and using the above as a guide, we have the following:

r = 4/5

Hence, the common ratio of the sequence is 4/5

Question

A sequence is defined by F(n) = 45 • (4/5) ^n-1.

What is its common ratio

Answer:

0.0546875 or if we are rounding 5.47%

Step-by-step explanation:

Answer:

5.46875%

Step-by-step explanation:

To answer this, we need to find 7 divided by 128. Using a calculator, we find that it is 0.0546875. To convert a decimal to a percentage, multiply the number by 100 and put a percent sign next to it. We get 5.46875%.

Answer:

It's z^11

Step-by-step explanation:

To multiply exponents with the same base (z), you add the exponents so in this case you add 5 and 6 to get z^11

Answer:

[tex]z^{11}[/tex]

Step-by-step explanation:

[tex]z^{a} *z^{b}= z^{a+b} \\z^{5} *z^{6}= z^{5+6} = z^{11}[/tex]

The solution is

The equations with one solution is

y = 0.5x - 2  ;   y = -0.5x + 4

y = 2x + 1  ;  y = 4x + 1

The equations with no solution is

y = 0.5x + 5  ;  y = 0.5x + 1

y = -x - 3  ;  y = -x + 3

The equations with infinite number of solutions is

y = 3x + 2.5  ;  y = 3x + 2.5

y = -x - 2  ;  y = -x - 2

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the equation be represented as A

Now , the value of A is

a)

y = 0.5x - 2   be equation (1)

y = -0.5x + 4   be equation (2)

On simplifying both the equations , we get

0.5x - 2 = -0.5x + 4

Adding 0.5x on both sides of the equation , we get

x - 2 = 4

Adding 2 on both sides of the equation , we get

x = 6

Substitute the value of x in equation (1) , we get

y = 1

The value of x is 6 and value of y is 1

b)

y = 0.5x + 5   be equation (1)

y = 0.5x + 1   be equation (2)

On simplifying both the equations , we get

0.5x + 5 = 0.5x + 1

Now , the equations are contradictory and there are no solution

c)

y = 2x + 1   be equation (1)

y = 4x + 1   be equation (2)

On simplifying both the equations , we get

2x + 1 = 4x + 1

Subtracting 2x on both sides of the equation , we get

2x + 1 = 1

Subtracting 1 on both sides of the equation , we get

2x = 0

x = 0

Substitute the value of x in equation (1) , we get

y = 1

Therefore , the value of x is 0 and value of y is 1

d)

y = 3x + 2.5   be equation (1)

y = 3x + 2.5   be equation (2)

On simplifying both the equations , we get

3x + 2.5 = 3x + 2.5

Therefore , the equations are similar and there are infinite number of solutions

e)

y = -x - 3   be equation (1)

y = -x + 3  be equation (2)

On simplifying both the equations , we get

-x - 3 = -x + 3

Now , the equations are contradictory and there are no solution

f)

y = -x - 2   be equation (1)

y = -x - 2   be equation (2)

On simplifying both the equations , we get

-x - 2 = -x - 2

Therefore , the equations are similar and there are infinite number of solutions

Hence , the system of equations are solved

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Answer:

[tex]c=-x^{2} +24x[/tex]

Step-by-step explanation:

Subtract on both sides to isolate c.

[tex]x^{2} -24x+c\\x^{2} -24+c-c=-c\\x^{2} -24+0=-c\\x^{2} -24x=-c\\-c=x^{2} -24x[/tex]

Have c be in positive form.

[tex]-c=x^{2} -24x\\(-)(-c)=(-)(x^{2} -24x)\\c=-x^{2} +24[/tex]

32 packages of ground meat are for sale

A division is a process of splitting a specific amount into equal parts.

Given that A butcher shop sells ground meat in 3/4 pounds packages

the shop has 24 pounds of meat available to sell,

We need to find the number of packages of ground meat are for sale .

To find this we have to divide 24 by 3/4

24/(3/4)

The denominator is multiplied to numerator by rationalising.

24×4/3

Twenty four times of fraction four by three.

32

Hence, 32 packages of ground meat are for sale

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There are 32 packages of ground meat for sale.

To find the number of packages of ground meat for sale, we need to divide the total pounds of meat available by the weight of each package.

Given that each package weighs 3÷4 pounds and the shop has 24 pounds of meat available, we can divide 24 by 3÷4 to find the number of packages.

Dividing 24 by 3÷4 is the same as multiplying 24 by the reciprocal of 3÷4, which is 4÷3. Therefore, there are 24 × (4÷3) = 32 packages of ground meat for sale.

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Answer:

3/5

Step-by-step explanation:

Answer:

The slope is 3/5.

Step-by-step explanation:

First remember that the formula for slope is the difference in ys / difference in xs.

m = y2 - y1 / x2 - x1

Plug in the coordinates of the two points you're given, keeping in mind that coordinates are (x,y).

m = -5 - 1 / -5 -5

m = -6 / -10

m = 6/10 = 3/5

Answer: 6  ≤ h ≤ 9

Step-by-step explanation:

Hi, since He charges $40 as a fixed rate for the first hour plus $20 for each additional hour, the cost of the tutoring service is equal to the fixed rate(40) plus, the product of the additional hours (h-1) and the cost per additional hour (20).

40+20(h-1)

40+20h-20

20+20h

Since a student can spend between $140 and $200, the previous expression must be greater o equal than 140, and less or equal than 200.

140≤20+20h≤200

Subtracting 20

140-20 ≤20-20+20h ≤200-20

120 ≤ 20h ≤ 180

Dividing by 20

120/20 ≤ 20h/20 ≤ 180/20

6 ≤ h ≤ 9

Final answer:

The minimum and maximum number of hours of tutoring a student can get if they can spend between $140 and $200 is 5 and 8 hours, respectively.

Explanation:

To determine the minimum and maximum number of hours of tutoring a student can get, we need to set up an inequality based on the pricing information provided. Let's denote the number of additional hours beyond the first hour as x.

The total cost of tutoring will be $40 for the first hour plus $20x for each additional hour. The student can afford to spend between $140 and $200, so the inequality is:
140 ≤ 40 + 20x ≤ 200

To find the solution, we need to isolate x. First, subtract 40 from all parts of the inequality:
100 ≤ 20x ≤ 160

Next, divide all parts of the inequality by 20:
5 ≤ x ≤ 8

Therefore, the minimum number of hours is 5 (including the first hour) and the maximum number of hours is 8 (including the first hour).

Answer:

He'll earn 125 in interest after 5 years.

Step-by-step explanation:

Since it's a simple interest rate, we can use the formula to calculate the amount of interest he'll earn in those years. We have:

C = P*i*t

Where C is the amount of interest earned, P is the initial amount invested, i is the interest rate and t is the total time elapsed. For this case we have:

C = 500*0.05*5

C = 2500*0.05

C = 125

He'll earn 125 in interest after 5 years.

Answer:

k = 0.5

Step-by-step explanation:

Constant of Proportionality is k = y/x

k = 0.5/1 = 0.5

Answer:

D. 6√3.

Step-by-step explanation:

x^2 = 108

x = +/- √108

x  =  +/- √36 * √3

x = +/- 6√3

Answer:

64°

Step-by-step explanation:

In circle with center P, AD is diameter.

[tex] \therefore m\angle DPE + m\angle APE = 180\degree \\

\therefore (33k-9)\degree + 90\degree = 180\degree \\

\therefore (33k-9)\degree = 180\degree -90\degree \\

\therefore (33k-9)\degree = 90\degree \\

\therefore 33k-9 = 90\\

\therefore 33k= 90+9\\

\therefore 33k= 99\\

\therefore k= \frac{99}{33}\\

\therefore k=3\\

m\angle CPD = (20k +4)\degree \\

\therefore m\angle CPD = (20\times 3 +4)\degree \\

\therefore m\angle CPD =(60+4)\degree \\

\therefore m\angle CPD =64\degree \\

m\overset {\frown}{CD} = m\angle CPD\\

\therefore m\overset {\frown}{CD} = 64\degree

[/tex]