Mathematics High School

During a snowstorm, the temperature drops from 0°F to -12°F in 3 hours. On
average, by how many degrees is the temperature changing per hour?

Answers

Answer 1

Answer:D.

-4°F

Step-by-step explanation:

Answer 2

Answer:

Step-by-step explanation:

Related Questions

What is the greatest common factor of 14, 51 ,21

Answers

Answer:

The answer is 1

Step-by-step explanation:

14 = 2 × 7

51 = 3 × 17

21 = 3 × 7

If 8 containers of cold brew coffee cost $24.80, what is the constant of proportionality?

Answers

Answer:

3.1

Step-by-step explanation:

Given f(x) = 5x - 3 , solve for when f(x) = 7

Answers

Answer:

Step-by-step explanation:

f(x) = 7, so:

5 · 7 - 3= 35 - 3 = 32

Answer:

x = 2

Step-by-step explanation:

f(x) = 5x - 3

7 = 5x - 3

10 = 5x

2 = x

So, x = 2

Geology in 1668, the Hope diamond was reduced from its original weight by about 45 carats, resulting in a diamond weighing about 67 carats. Write and solve an equation to find how many carats the original diamond weighed. Answer:

Answers

Answer: W = 112 carats

Step-by-step explanation: Let W be the original weight.

So we have

W - 45 = 67 add 45 to both sides

And that equals 112 carats

answer question bellow!!!

Answers

The answer to your question is false

What is x in x4 - 2x3 - 3x2 = 0

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HOPE THIS HELPSSSSSSSSSSSSSSS

The answer to your question is x=3

GIVING BRAINLIEST
How can you use 2,4,6,8 to equal 80 without using the numbers twice?

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[tex]8 (\sqrt{4} \times 2 + 6) \\ \sqrt{4} = 2 \\ 2 × 2 = 4 \\ 4 + 6 = 10 \\ 8(10) = 80[/tex]

What is the Lcm of 168?

Answers

Answer:

Step-by-step explanation:

. The equation = can be used to find how many hours h a person needs to work to earn $200 at $8 per hour. How many hours does a person need to work to earn $200?

Answers

Answer:

0.04 h

Step-by-step explanation:

The given equation is :

8h=200

It is used to find hours h a person needs to work to earn $200 at $8 per hour.

We need to find no of hours does a person need to work to earn $200. It can be calculated as follows :

[tex]\dfrac{8h}{200}=\dfrac{200}{200}\\\\h = 0.04\ h[/tex]

So, for $200, the person will need 0.04 h.

What is the least possible value of x if x^2 + 21 = 30

Answers

Answer:

Least possible value of x is 3

Step-by-step explanation:

Given:

x² + 21 = 30

Find:

Value of x

Computation:

x² + 21 = 30

x² = 30 - 21

x² = 9

x = √9

x = 3

Least possible value of x is 3

Hey I need help with my math work

Answers

Step-by-step explanation:

what is the question?????

Answer:

Where is the question???

Step-by-step explanation:

What is the best estimate of
18
×
709
?

A.
9,000

B.
14,000

C.
18,000

D.
22,000

Answers

Answer:

B. 14,000

I hope that this helps you, have a wonderful day!

The best estimate from the option is 14,000 since 14,000 is the nearest value from the option to 12763.

Given,

18 x 709

We need to find the best estimate.

How do multiply numbers?

We need to multiply each number of one number with the other number and add them to get the product.

Example:

21 x 34 =

21 x 3 = 63

21 x 4 = 84

2 1

x 3 4

+ 63

71 4

We have,

18 x 709

We can write it as:

709 x 18

709 x 8 = 5672

709 x 1 = 709

709

x 18

5672

+ 709

12762

Thus the best estimate from the option is 14,000 since 14,000 is the nearest value from the option to 12763.

Learn more about how to multiply numbers here:

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Need help ASAP!!!!!!

Answers

Answer:

see explanation

Step-by-step explanation:

x² + 3x + 7 = 5 ( subtract 5 from both sides )

x² + 3x + 2 = 0 ← in standard form

(x + 2)(x + 1) = 0 ← in factored form

Equate each factor to zero and solve for x ( zero product rule )

x + 2 = 0 → x = - 2

x + 1 = 0 ⇒ x = - 1

--------------------------------------------------------------

x² - 2 = - 2x² + 5x ( subtract - 2x² + 5x from both sides )

3x² - 5x - 2 = 0 ← in standard form

(3x + 1)(x - 2) = 0 ← in factored form

Equate each factor to zero and solve for x

3x + 1 = 0 ⇒ 3x = - 1 ⇒ x = - [tex]\frac{1}{3}[/tex]

x - 2 = 0 ⇒ x = 2

------------------------------------------------------------

(x + 3)² + 4x = 0 ← expand left side using FOIL and simplify

x² + 6x + 9 + 4x = 0

x² + 10x + 9 = 0 ← in standard form

(x + 9)(x + 1) = 0 ← in factored form

Equate each factor to zero and solve for x

x + 9 = 0 ⇒ x = - 9

x + 1 = 0 ⇒ x = - 1

Enter the range of values for x:
B
4x - 8
20°
C
8
D
11
А
[?] Enter

Answers

The range of values for x would be 6 < x < 8.

Isosceles triangle:It is a triangle with two equal angles or two equal side.Angles opposite to the equal sides of an isosceles triangle are also equal.Angle bisector is perpendicular to the base in an isosceles triangle.What is angle bisector?

"It is a ray/line that divides an angle into two equal parts."

From figure,

BD is perpendicular to the base AC.

Since BD is an angle bisector,

⇒ 4x - 8 = 20

⇒ 4x = 20 + 8

⇒ 4x = 28

⇒ x = 28/4

⇒ x = 7

Therefore, the range of the values for x would be,

6 < x < 8.

Learn more about isosceles triangle here:

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Use the diagram to find the measures of all the angles, given that m/2 = 159º.
2
3
4
m 21
m23
m24

Answers

M 1=21 degrees
M 3=21 degrees
M 4=159 degrees

Write an equation in the form y=mx for the proportional relationship that passes through the points (2, -15) and (6, -45).

Answers

Answer:

Y=-15/2x

Step-by-step explanation:

The equation of line in the form y=mx is y=-15/2x

What is slope?

A line's slope is determined by how its y coordinate changes in relation to how its x coordinate changes. y and x are the net changes in the y and x coordinates, respectively. Therefore, it is possible to write the change in y coordinate with respect to the change in x coordinate as,

m = Δy/Δx

where, m is the slope

Given coordinates:

(2, -15) and (6, -45).

Now, slope for the equation

slope= [tex](y_2 - y_1)/ (x_2- x_1)[/tex]

slope= (-45 - (-15))/ (6 - 2)

slope= (-45 + 15)/ 4

slope= -30/4

slope= -15/2

Hence, the equation of line in the form y=mx is y=-15/2x

Learn more about slope here:

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If k=4 then the remainder of (x^3-7x+k)/x+1 is 2. True or False?

Answers

Answer:

Step-by-step explanation:

It would be true

Answer:

k=2 so false

Step-by-step explanation:

HELP ME WHAT IS THE ANSWER FOR Divide 758,908 ÷ 72 and indicate the remainder, if any. Use long division.

Answers

Answer:

10540.3888889

Step-by-step explanation:

May I have brainliest please? :)

Heeelp
. Can someone please answer this to meee ?

.

Answers

Answer:

If f(x)=g(x), the solution is x=-2

Step-by-step explanation:

We are given:

[tex]f(x)=3x+3\\g(x)= (-1/2)x-4[/tex]

We need to find the solution if f(x)=g(x)

Now solving for f(x)=g(x)

[tex]f(x)=g(x)\\3x+3=(-\frac{1}{2}x)-4\\3x+3=-\frac{1}{2}x-4\\3x+\frac{1}{2}x=-4-3\\\frac{3x*2+x}{2}=-7\\\frac{6x+x}{2}=-7\\\frac{7x}{2}=-7\\x=-7*\frac{2}{7}\\x=-2[/tex]

If f(x)=g(x), the solution is x=-2

Luke Combs has a new CD coming out next summer. He will spend 4.3 hours each day in the recording studio for 23 days. How many hours total will he spend in the recording studio?

Answers

Answer:

98.9

Step-by-step explanation:

23x4.3=98.9 hours

You know whats weird lol?
Im about to be 14 in january right, and i already have a job. I work 7 days a week.
And my sister is 16, she doesnt have a job or do anything..
chile-

Answers

Answer:

wow

Step-by-step explanation:

You earnin monnnnnneyyyyyyyyy!!!!!!!!!!!!!!!!!!!

In the following activity, match each pair of equivalent expressions.

1 . (7 - 2x) + (3x - 11) 2(x - 2)

2 . -3x + 6 + 4x (x + 14) - (8 - 2x)

3 . -2x + 9 + 5x + 6 3(x + 5)

4 . 9x - 2(3x - 3) -4(x + 1) + 5x

5 . -7 + 6x - 4x + 3 (7 + 5x) + (-4x - 1)

Answers

Answer:

1. -8+3x

2. 51x-2+4x2 (squared)

3. 66x +324

4. 6x+2

5. 13 +13x

Step-by-step explanation:

I don't think I really understand the question but I tried to simplify the equations

Students make 97.5 ounces of liquid soap for a craft fair. They put the soap in 7.5-ounce bottles and sell each bottle for $5.50$. How much do the students earn if they sell all the bottles of liquid soap? Explain.

Answers

Answer:$71.50

Step-by-step explanation:

Hello!

So first you want to find out how many bottles of soap you can make

To do that you want to divide how many ounces you have by how many ounces it takes to make 1 bottle

97.5 / 7.5 = 13

So you know you can make 13 bottles of soap

So now you want to multiply the number of bottles of soap that can be made by the amount of money you can make per bottle

13 * 5.50 = 71.50

So you know that the students can make $71.50

Anthony cut a piece of metal that weighed 2,700 grams.Dianne cut a piece of metal that weighed 3,200 grams.how much heavier was Dionne's piece, in kilograms

Answers

Answer:

500 g

Step-by-step explanation:

IM DONE WITH THIS STUPID THING 50 POINTS TO THE PERSON WHO GETS IT ALL CORRECT.

Answers

i underlined the numbers you needed

If
you borrow $500 at 5% for two years, how much will you pay back by the end of the term?

Answers

Answer:

Your estimated monthly payments are $22 and you will pay $26 in interest over the life of the loan.

Step-by-step explanation:

(-11)+(-11) i will give brainllest

Answers

Answer:

the answer is -22

Step-by-step explanation

how many solutions exist for the given equation? 0.75(x+40)=0.35(x+20)+0.35(x+20)
please hurry

Answers

Answer:

only one

Step-by-step explanation:

0.75x+30=0.35x+7+0.35x+7

x=-320

Jason drove 110 miles in 2 3/4 hours. What was Jason's speed in miles per hour?

Answers

Answer:

It is 40 miles per hour.

Step-by-step explanation:

turning the 2 3/4 to 2.75, you can divide 110 by 2.75 to get 40.

brainliest if i am right? uwu

what expression does the model show
i will give brainliest
help asap

Answers

3 x -4

Hope that helps

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During a snowstorm, the temperature drops from 0°F to -12°F in 3 hours. On average, by how many degrees is the temperature changing per hour?

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During a snowstorm, the temperature drops from 0°F to -12°F in 3 hours. On
average, by how many degrees is the temperature changing per hour?