The temperature falls from 7°C to -8°C. What is the difference in these temperatures?​

If you have ​$50 in your bank account and each week you plan to deposit ​$8 from your allowance and ​$20 from your paycheck. The number of  weeks from now that you will have ​$210 in your bank​ account is: 5.71w.

The given equation is:

b=50+​(20+8​)w

Where:

b  is the amount in your account after w weeks.

w = Number of week

Hence,

b = 50+​(20+8​)w

b = 50+28w

b-50 = 28w

(b-$50)/28 = w

(210-$50)/28 = w

160/28 = w

5.71 = w

Therefore we can conclude that you will have the amount of  $210 in your account in 5.71 weeks.

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The season the team scored more consistently will be this season because the Standard deviation is less.

Statistics is the study of collection, analysis, interpretation, and presentation of data or discipline to collect and summarise the data.

Last Season: 10, 3, 20, 27, 35, 17, 20, 13, 17

The mean is given as,

Mean = (10 + 3 + ...... + 17) / 9

Mean = 18

Then the standard deviation is given as,

Standard deviation = [(10 - 18)² + (3 - 18)² + ...... + (17 - 18)²] / 9

Standard deviation = 8.78

This Season: 23, 17, 28, 16, 23, 16, 16, 10, 13

The mean is given as,

Mean = (23 + 17 + ... + 13) / 9

Mean = 18

Then the standard deviation is given as,

Standard deviation = (23 - 18)² + (17 - 18)² + ...... + (13 - 18)²

Standard deviation = 5.29

The season the team scored more consistently will be this season because the Standard deviation is less.

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Answer:

Each friend gets 3/4 of a fruit bar

Step-by-step explanation:

Answer:

False

Step-by-step explanation:

10x3=30

30-20=10

10=20

These equations dont match.

Hence, the equation is false

Answer: This equation is FALSE. The left side 10 does not equal to the right side which is 20.

Step-by-step explanation:

Thus, the volume of cylinder with the given height and diameter is found as 1413 ft³.

A cylinder is three-dimensional. It's not a flat thing. There are parallel circular bases in this shape. These bases have a curved face affixed to them. A cylinder in this instance has three faces. Along both end of a curved face, which rounds back to the face's origin, are two spherical bases.

Given that-

Volume of cylinder = πr²h

Volume of cylinder = 3.14 *5²*18

Volume of cylinder = 3.14*25*18

Volume of cylinder = 1413 ft³

Thus, the volume of cylinder with the given height and diameter is found as 1413 ft³.

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Answer:

There are 3 feet in a yard, so divide 34 by 3, which is 11 with a remainder of 1, the remainder 1 is the remaining foot, so 34 feet is 11 yards and 1 foot.

Step-by-step explanation:

Answer:

$77,558.55

Step-by-step explanation:

A fix periodic payment for specific period of time.

We need to calculate the present value annuity to determine the value of investment today.

Present value of annuity = P x ( 1 - ( 1 + r )^-n / r )

where

P = Periodic payment = $12,000

r = interest rate = 10% / 2 = 5%

n =numbers of payment = 4 years x 2 = 8 payments

Placing values in the formula

Investment Value today = $12,000 x ( 1 - ( 1 + 5% )^-8 / 5% )

Investment Value today = $77,558.55

Answer:

12.5km

hope this helps

have a good day :)

Step-by-step explanation:

Answer:12.5Km

Step-by-step explanation:

You do 2.5 x 5

The incorrect statement is

In mathematics, dilation can be defined as a transformation which alters the size of an object, though its shape remains unchanged. It is described as a specific similarity transformation where all dimensions associated with the given object (i.e. height, width and length) are increased or decreased uniformly by a particular scale factor.

A dilation thus produces an alteration in size, with the figure being either magnified or diminished while keeping its unique shape intact.

The scale factor used in the dilation is 9/7 instead of 7/3.

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Answer:

d ≈ 5.64 m

Step-by-step explanation:

We are told that the pool is circular and that the area is 25 m².

Now, the longest chord that connects two points in a circle is the diameter.

Thus, the longest distance d will be the diameter

Area of circle is given by the formula;

A = πr²

Thus;

25 = πr²

r² = 25/π

r = √(25/π)

r = 5/√π

Diameter is twice the radius. Thus;

d = 2 × 5/√π

d = 10/√π

d ≈ 5.64 m

Answer:

Here you go( I dont feel like taking a screen shot- sorry)

Step-by-step explanation:

Very helpful for k12 students, and hope this helps! sorry I am late.

9p+6b=390

7p+8b=400

(I took the test on this and got it right!)

Answer:

  288 miles

Step-by-step explanation:

Kevin's trip took 9 hours one way, and 4 hours the other way, driving 40 mph faster. You want to know the one-way length of Kevin's trip to the mountains.

The relation between time, speed, and distance is ...

  speed = distance/time

Using d to represent the one-way distance Kevin drove, we can relate his speeds with ...

  d/4 = 40 +d/9 . . . . . . speed coming home was 40 mph more than going

Multiplying by 36 to clear fractions, we have ...

  9d = 1440 +4d

  5d = 1440 . . . . . . . subtract 4d

  d = 288 . . . . . . . divide by 5

Kevin lived 288 miles from the mountains.

Answer:

-6

Step-by-step explanation:

hey laudu

\(3a + b + 4\)

\(3( - 2) + ( - 4) + 4\)

\( - 6 - 4 + 4\)

\( - 6\)

Step-by-step explanation:

❀ \( \underline{ \underline{ \text{Given}}} : \)

❀ \( \underline{ \underline{ \text{To \: find}}} : \)

✏ \( \underline{ \underline{ \text{Solution}}} : \)

All you need to do is plug the value and simplify !

⟶ \( \tt{3 \times ( - 2) + ( - 4) + 4}\)

⟶ \( \tt{ - 6 + ( - 4) + 4}\)

⟶ \( \tt{ - 6 - 4 + 4}\)

⟶ \( \tt{ - 10 + 4}\)

⟶ \( \boxed{ \tt{ - 6}}\)

\( \red{ \boxed{ \boxed{ \tt{Our \: final \: answer : \boxed{ \underline{ - 6}}}}}}\)

Hope I helped ! ♪

Have a wonderful day / night ! ♡

▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁

The graph attached represents a cubic function at

x < -2

Cubic functions are a type of polynomial function that has a degree of 3, meaning the highest power of the variable is 3.

The general form of a cubic function is:

f(x) = ax³ + bx² + cx + d

where a, b, c, and d are coefficients and x is the variable

At point x = -2 the graph has an open circle hence -2 would not be part of the equation, this makes x ≤ -2 an incorrect option.

From x < -2 in the graph, represents the graph of a cubic function

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The coordinates of the y-intercept are (0, 3.5) and the coordinates of the x-intercepts are (-17.5, 0). Using these coordinates, the graph of the equation is shown below.

From the question, we are to graph the given linear equation.

To graph the equation,

We will determine the coordinates of the x-intercepts and y-intercepts.

When x = 0

y = 1/5x + 3.5

y = 1/5(0) + 3.5

y = 3.5

(0, 3.5)

When y = 0

y = 1/5x + 3.5

0 = 1/5x + 3.5

Multiply through by 5

0 = x + 17.5

x = -17.5

(-17.5, 0)

Using the coordinates of the x-axis and y-axis, the graph of the equation is shown below.

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Answer:

$21 is the correct answer

Answer:

Step-by-step explanation:

First we have to find 1 percent of 35, and then we will multiply it by 40. So: 35/100 = 0.35

0.35 (40) = 14

35 - 14 = 21

So, the discounted price is now $21.

Answer:

54

Step-by-step explanation:

66 2/3 % is 2/3 of 100, so (36/2)*3=54

The actual annual value of this job to Karla is 33000.

What are arithmetic operations?

Arithmetic operations is a branch of mathematics that studies numbers and the operations on numbers that are useful in all other branches of mathematics. It consists primarily of operations like addition, subtraction, multiplication, and division.

We have,

the job will pay 2400 per month,

if the full cost of the medical insurance is 450 a month and Karla plans to contribute the full 1500 every year tpa retirement plan,

the actual annual value of this job to Karla is:

2400 per month

annual value  = 2400 * 12 = 28,800

the medical insurance is 450 a month

half the cost of medical insurance is  225 a month

annual value  = 225  * 12 = 2700

the full 1500 every year tpa retirement plan,

So, the total value is:

= 28,800 + 2700 + 1500

= 33000

Hence,  the actual annual value of this job to Karla is 33000.

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Answer: 7xy + 2x^2t

Step-by-step explanation:

Answer:

which questions do you want to ask

Step-by-step explanation:

sorry but I didn't know

Answer:

54 word per minute

Step-by-step explanation:

Answer:the median is  Q2 aka 105

Step-by-step explanation:

Answer:

1. s + 7 = 9

2. 5r - 4 = 21

3. t - s = 5

4. u + r = 6

5. 11t - 7 = 70

6. 6 + 3u = 9

7. 4r - 10s = 0

8. r with an expnent of 2 +8 = \(r^{2} + 8 = 33\)

9. 30 over r = \(\frac{30}{5}\) =6

10. 2t with an exponent of 2-18 = \((2t)^{2} - 18 = 178\)

Step-by-step explanation:

1. If r = 5, s = 2, t = 7, and u = 1 then,

s + 7  = 2 + 7 = 9

2. If r = 5, s = 2, t = 7, and u = 1 then,

5r - 4  = 5(5) - 4 = 25 - 4 = 21

3. if r = 5, s = 2, t = 7, and u = 1 then,

t - s  = 7 - 2 = 5

4 .If r = 5, s = 2, t = 7, and u = 1 then,

u + r  = 1 + 5 = 6

5. If r = 5, s = 2, t = 7, and u = 1 then,

11t - 7  = 11(7) - 7 = 77 - 7 = 70

6. If r = 5, s = 2, t = 7, and u = 1 then,

6 + 3u = 6 + 3(1) = 6 + 3 = 9

7. If r = 5, s = 2, t = 7, and u = 1 then,

4r - 10s = 4(5) - 10(2) = 20 - 20 = 0

8. If r = 5, s = 2, t = 7, and u = 1 then,

r with an exponent of 2 +8 = \(r^{2} + 8 = 5^{2} + 8 = 25 + 8 = 33\)  

9. If r = 5, s = 2, t = 7, and u = 1 then,

30 over r = \(\frac{30}{r} = \frac{30}{5} = 6\)

10.If r = 5, s = 2, t = 7, and u = 1 then,

2t with an exponent of 2-18 = \((2t)^{2} - 18 = (2.7)^{2} - 18 = (14)^{2} - 18 = 196 - 18 = 178\)

Step-by-step explanation:

y=mx+c

2=2(1)+c

c=2-2

c=0

Answer:

Step-by-step explanation:

4/mx

Answer:

4.5

Step-by-step explanation:

If the values of n = 22 and r = 7 then the combination exists 170544.

Combinations are mathematical operations that count the variety of configurations that can be made from a set of objects, where the order of the selection is irrelevant.

A combination in mathematics is a method of choosing items from a collection where the order of the choices is irrelevant. Consider a group of three numbers, P, Q, and R. The number of ways that we can choose two numbers from each group is thus determined by combination.

Gives the number of subsets of r elements, out of n elements

Let the equation be 22C7

\($& n C r=\frac{n !}{r !(n-r) !} \\\)

Substitute the values of n = 22, r = 7

\($& =\frac{22 !}{7 !(22-7) !} \\\)

simplifying the above equation, we get

\($& \frac{22 !}{7 !(22-7) !}=170544 \\\)

Therefore the correct answer is option b) 170544.

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Answer:

below

Step-by-step explanation:

(7x+3) - (4x-5) =

7x+3 -4x +5 =

3x + 8

Answer:

3x + 8

Step-by-step explanation:

1. remove parenthesis: 7x+3 - 4x -5

2. change the - sign to + after changing parenthesis: 7x+3 - 4x + 5

3. combine like terms: 7x - 4x + 3 + 5 = 3x + 8

Answer:

right bottom

Step-by-step explanation: