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densk [106]
2 years ago
9

At 5 a. M. , the temperature at an airport was −9. 4°F. Six hours later, the temperature was 2. 8°F. Which expression represents

the total temperature change over the six hours?
∣∣−9. 4+2. 8∣∣

−9. 4+2. 8

∣∣2. 8−(−9. 4)∣∣

∣∣2. 8+(−9. 4)∣∣
Mathematics
1 answer:
Papessa [141]2 years ago
4 0

Answer:

Step-by-step explanation:


∣∣2. 8−(−9. 4)∣∣

∣∣2. 8+(−9. 4)∣∣

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x = 36

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Which of the following functions has a graph that is a line?
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f(x)=x is a line.

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Find the equation whose graph is a parabola with vertex (2,4), vertical axis of symmetry, and contains the point (1,1). Express
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4 0
3 years ago
If m = 5 and n = -2, evaluate 3m - 4n and n2 - m and find the product of the two expressions.
ddd [48]

Hence the correct answer is C) -23

Further explanation:

We have to put the values of m and n into both expression first separately and then multiply the answers.

Given expressions are:

Exp\ 1:3m-4n\\Exp\ 2: n^2-m

The values are:

m=5\\n=-2

Putting the values in expression 1:

3m-4n\\=3(5)-4(-2)\\=15+8\\=23

Putting the values of m and n in second expression

n^2-m\\=(-2)^2-5\\=4-5\\=-1

Multiplying both expressions:

(3m-4n)(n^2-m)=23* (-1)=-23

Hence the correct answer is C) -23

Keywords: Polynomials, Putting values in expressions

Learn more about polynomials at:

  • brainly.com/question/4142886
  • brainly.com/question/4934417

#LearnwithBrainly

8 0
3 years ago
PLEASE HELP! A) 6,135º C B) 6,681º C C) 502º C D) 47º C
Arada [10]

Answer: 47°C

Step-by-step explanation:

Since we are given the velocity, all we have to do is plug in 358 for v and solve for t.

358=20\sqrt{273+t}                    [divide both sides by 20]

17.9=\sqrt{273+t}                        [square both sides to cancel out square root]

320.41=273+t                       [subtract both sides by 273]

t=47.41

Now that we know the temperature is 47.41°C, we know our answer choice is D.

8 0
3 years ago
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