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Gnom [1K]
2 years ago
13

A function is represented by the equation y = x(x+3). If the input is -2, what is the output?

Mathematics
1 answer:
Andrews [41]2 years ago
7 0
Answer: -2
Y = x(x+3)
Y = (-2)((-2)+3) * Distribute*
Y = 4 - 6
Y = -2
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Anna has $430. She wants to buy a phone that costs $275. Anna will also have to pay a sales tax of 7%.
ki77a [65]
19.25 (tax)
294.25 (total price)
135.75 (money left)

REASONING:

In this word problem it says Anna has 430 dollars. The phone costs 275 dollars. It also says that when she buys the phone, she will have to pay a tax of 7%.

To find how much tax she will pay, we must do [275] x [0.07]

After inputting this into a calculator, you will get 19.25 (tax)


To find the total price, all you have to do is add 19.25 to 275. When you do this, you will get 294.25 dollars (total price)


To find how much money she has left,

430-294.25=135.75 (money left)

5 0
3 years ago
Peter learns the following: A cheetah travels about 0.15 kilometers in 5 seconds. A snail travels about 1.5 centimeters in 5 sec
NNADVOKAT [17]
Cheetah travels 0.15 km in .....................5 seconds or
                          15000 cm ......................5 seconds

a snail travels 1.5 cm in ...........................5 seconds
the cheetah travels in 5 seconds 15000-1.5=14998.50 cm which is equal to
149.985 meters which is choice A
4 0
3 years ago
1. Find the distance from point P to QS
12345 [234]

Answer:

5.7 units

Step-by-step explanation:

The distance from point P to QS is the distance from point P (1, 1) to the point of interception R(-3, 5).

Use distance formula to calculate distance between P and R:

PR = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}

Let,

P (1, 1) = (x_1, y_1)

R(-3, 5) = (x_2, y_2)

Plug in the values into the formula.

PR = \sqrt{(-3 - 1)^2 + (5 - 1)^2}

PR = \sqrt{(-4)^2 + (4)^2}

PR = \sqrt{16 + 16}

PR = \sqrt{32}

PR = 5.7 units (to nearest tenth)

4 0
3 years ago
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Ivanshal [37]

Answer:

You will need 34 square feet of carpet

4 0
3 years ago
8 1/2 minus 5 1/2? simplify
vichka [17]

Answer:

3

Step-by-step explanation:

Same as: 8.5-5.5 = 3

5 0
2 years ago
Read 2 more answers
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