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ozzi
1 year ago
9

1. Which statements are true? An expression for "A diver swims at 14 feet below sea level and then descends another 14 feet" is

14+ (-14). An expression for "Bailey owes $14 and then earns $14" is −14+ 14. An expression for "Gail saves $14 and then spends $14" is -14 + 14. An expression for "Max saves $14 and then spends $14" is 14+ (-14). An expression for "Sera owes $14 and then earns $14" is -14 +14.​
Mathematics
1 answer:
Mariana [72]1 year ago
6 0

"Max saves $14 and then spends $14" is 14+ (-14)."

This statement is true.

Max saves $14, which means he has a benefit of $14. After that, he spends $14, So which means he withdrew $14, therefore $14 was subtracted from his account.

Hence, the equation will be $14 + (-$14)

<h3>What is an Equation?</h3>
  • A mathematical equation is a formula that uses the equals symbol (=) to connect two expressions and express their equality.
  • Finding the variables' values that cause the equality to be true is the first step in solving an equation with variables.
  • The variables for which the equation must be solved are also known as the unknowns, and the unknowns' values that fulfill the equality are known as the equation's solutions.
  • Equations can be categorized as either identities or conditional equations. For each value of the variables, an identity holds true.
  • Only specific values of the variables make a conditional equation true.
  • The terms "left-hand side" and "right-hand side" refer to the expressions on each side of the equals sign. It's very common to presume that an equation's right side is zero.
  • The generality can be realized by deducting the right-hand side from both sides, assuming that this does not reduce it.

To learn more about Equations, refer to:

brainly.com/question/10413253

#SPJ13

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The midpoint of (-4,15) and (22,3)
ahrayia [7]

Answer:

(9, 9)

Step-by-step explanation:

midpoint of (-4,15) and (22,3)

=  \bigg( \frac{ - 4 + 22}{2}, \:  \:  \frac{15 + 3}{2}  \bigg) \\  \\  =  \bigg( \frac{18}{2},  \:  \:  \frac{18}{2}  \bigg) \\  \\  =  ( 9,  \:  \:  9) \\  \\

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4 years ago
You spend 60 on clothes and buy 3 dvd movies. your friend spends nothing on clothes and buys 8 dvd movies. you both spend the sa
garik1379 [7]
Each dvd cost $7.50 how? Your friends buy 8 dvd's and in total is 60, you want to divide 60 from 8 and find that it's 7.50 and then multiply 8 to 7.50 and it should be 60. Hope this helps!!

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3 years ago
What is the total surface area of the pyramid below?
mel-nik [20]

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Step-by-step explanation:

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3 years ago
Read 2 more answers
The volume (in cubic inches) of a shipping box is modeled by V =2x³ -19x² +39x, where x is the length (in inches). Determine the
yawa3891 [41]

Answer:

The values of x for which the model is 0 ≤ x ≤ 3

Step-by-step explanation:

The given function for the volume of the shipping box is given as follows;

V = 2·x³ - 19·x² + 39·x

The function will make sense when V ≥ 0, which is given as follows

When V = 0, x = 0

Which gives;

0 = 2·x³ - 19·x² + 39·x

0 = 2·x² - 19·x + 39

0 = x² - 9.5·x + 19.5

From an hint obtained by plotting the function, we have;

0 = (x - 3)·(x - 6.5)

We check for the local maximum as follows;

dV/dx = d(2·x³ - 19·x² + 39·x)/dx = 0

6·x² - 38·x + 39 = 0

x² - 19/3·x + 6.5 = 0

x = (19/3 ±√((19/3)² - 4 × 1 × 6.5))/2

∴ x = 1.288, or 5.045

At x = 1.288, we have;

V = 2·1.288³ - 19·1.288² + 39·1.288 ≈ 22.99

V ≈ 22.99 in.³

When x = 5.045, we have;

V = 2·5.045³ - 19·5.045² + 39·5.045≈ -30.023

Therefore;

V > 0 for 0 < x < 3 and V < 0 for 3 < x < 6.5

The values of x for which the model makes sense and V ≥ 0 is 0 ≤ x ≤ 3.

8 0
3 years ago
10c + 5 ≤ 45<br> I need the graph<br> pls help
LuckyWell [14K]

Answer:

c<=4

Step-by-step explanation:

4 0
3 years ago
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