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Ymorist [56]
3 years ago
5

Is the domain {1.8,3.4,9,9.8}

Mathematics
1 answer:
Effectus [21]3 years ago
4 0
You need to find the values of x that correspond to the given values of f(x). That is, you need to solve for x:
.. y = 7x -2.7
.. y +2.7 = 7x
.. x = (y +2.7)/7

You are given y values of {14.1, 30.9, 41.4, 58.9, 68}. The corresponding x values are {2.4, 4.8, 6.3, 8.8, 10.1}, corresponding to selection C.

_____
Since the first number in each choice is different, you only need to evaluate f(x) for those numbers to see which gives the correct result. Only the 3rd one (2.4) give f(2.4) = 14.1, the correct answer.

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For a snack, sander ate a plum with 32 calories and several strawberries with 4 calories each. If the total number of calories i
muminat

Answer:

6 strawberries

You subtract 32 from 56, which gives you 24. Then, if one strawberry is 4 calories, you can eat 6 of them to gain 24 calories.

32 + 24 = 56 ... So one plum (32) and six strawberries (4+4+4+4+4+4) gives you 56 calories, which is the total. That's how you can check your work.

Answer: 6

4 0
3 years ago
What two numbers multiply to -84 and add up to 17
allsm [11]
The two numbers are 21 and -4 because 21×(-4)=(-84). And when you add 21+(-4) you get 17.
4 0
3 years ago
Emilia bought 9 over 12 pound of sliced salami at the deli counter.
Setler79 [48]
The answer to your question is d. 0.75 pounds
8 0
3 years ago
Simplify <br> 2(x+7) 2x + 20<br> - 2 =<br> x+4<br> 2x + 8
9966 [12]

Answer:

x = -20

Step-by-step explanation:

2(x+7) 2x + 20  - 2 =  x+4  2x + 8

2x+14 + 2x + 20 - 2 = x + 4 + 2x + 8

4x +32 = 3x + 12

x = -20

3 0
2 years ago
The length of a rectangle is 5 times the width. The perimeter of a rectangle is less than 108 meters.
Masteriza [31]

Answer:

use area to solve

Step-by-step explanation:

7 0
3 years ago
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