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3 years ago

11

Need this ASAP pls help !

2 answers:

EastWind [94]3 years ago

7 0

Start with which equations are written in function notation?
The only ones are the first and last, not the “y=“ ones.

Then look at the equations.
h(x) = x^2 would be a parabola, so the range wouldn’t be all real numbers. It’d only be non-negative numbers.
g(x) = 1/2 x + 3/2 would be a line. This has a range of all real numbers.

Leni [432]3 years ago

6 0

c jfjjfjfjfjnfnfjfjfjjf

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If f(r)= 3.14 r^2 what is f(3)

KIM [24]

Answer:

f(3) = 28.26

Step-by-step explanation:

Substitute r = 3 into f(r) , that is

f(3) = 3.14 × 3² = 3.14 × 9 = 28.26

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3 years ago

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4 years ago

How many liters each of a 25% acid solution and a 50% acid solution must be used to produce 80 liters of a 40% acid solution?

alina1380 [7]

Answer:

32 and 48 liters

Step-by-step explanation:

Let 25% solution is x liters, then 50% solution is (80 - x) liters.

<u>Acid content is going to be same:</u>

0.25x + 0.5(80 - x) = 80*0.4
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x = 8/0.25
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4 0

3 years ago

What’s the midpoint P(0,-2), Q(1,1

LiRa [457]

You would have to add x1 + x2 and divide by 2. do the same with y1 and y2.

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3 years ago

Seattle, Washington is known for being very rainy. One day last month, 8 inches of rain fell in 1 1/2 hours. What is the rate of

Leno4ka [110]

Answer:

0.44ft/hr

Step-by-step explanation:

Given parameters:

Quantity of rainfall = 8inches

1ft = 12inches

so;

$\frac{8}{12}$ = 0.67ft

Time = $\frac{3}{2}$ hr

Unknown:

Rate of rainfall expressed in ft/hr = ?

Solution:

The rate of the rainfall is given as;

Rate = $\frac{Quantity}{time}$

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8 0

3 years ago

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