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Nana76 [90]
3 years ago
15

-4x + 7 for x=1. evaluate each expression for the given value of x.

Mathematics
2 answers:
Crazy boy [7]3 years ago
6 0
-4(1)+7=-4+7=3
the answer is 3
Zarrin [17]3 years ago
3 0
-4(1)=-4+7=3
answer: 3
You might be interested in
Is this correct help plzz
const2013 [10]
None of the offered choices is correct.

The radical cannot be simplified. If rewritten, it must be written as something like
x \sqrt[3]{ \frac{6}{x}}
or
\frac{6x}{ \sqrt[3]{36x}}
3 0
3 years ago
Eliza’s backpack weighs 18 and StartFraction 7 over 9 EndFraction pounds with her math book in it. Without her math book, her ba
kramer

Answer:

about 3.9 lbs

Step-by-step explanation:

18 7/9 lbs - 14 7/8 lbs

convert mixed numbers to improper fractions

169/9 - 119/8

convert to common denominator

1352/72 - 1071/72

subtract numerators

281/72

about 3.9 lbs

4 0
3 years ago
Read 2 more answers
What is the equivalent fraction for 0.3333
lorasvet [3.4K]
0.3333 = 1/3

Answer would be: 1/3
6 0
3 years ago
Find the area of a circle with radius equal to 6.<br><br> A =
anyanavicka [17]

Answer:

Step-by-step explanation:

hello :

A= πr²     r = 6

so : A= 3.14(36) = 113.04

8 0
3 years ago
You have some money in your wallet. You don't know the exact amount, but you think you have 60 dollars give or take 15 dollars.
Karolina [17]

Answer:

The least amount is 75 dollars.

The biggest amount is 125 dollars

Step-by-step explanation:

The absolute value function will help us determine a  range of possible values since we do not know the exact amount of money.

Defining the function.

Let x be the exact amount of money in my pocket, we can define the equation

And we know that the difference between the exact amount of money with 100 dollars must be either 25 dollars more than what we estimated, or 25 dollars less than the estimation.  So we can write:

We have a difference inside an absolute value, since we know the difference must be either +25 or -25.

Solving for x

Using the definition of absolute value we have

So if the inside of the absolute value is positive we have the first line of the piece-wise function, that is

Solving for x give us

If the inside of the absolute value is negative we have to use the second line of the piece-wise function definition

Solving for x give us

So the least amount of money in my pocket is 75 dollars and the biggest amount is 125 dollars.

6 0
2 years ago
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