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timurjin [86]
3 years ago
11

Help please! I’ll give brainliest if correct!

Mathematics
1 answer:
Marrrta [24]3 years ago
4 0
I think b is y would 15 and x is 3 making 15=3•5 or 15•3=45
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How many solutions does the equation have ? <br> –9(2+8) = -92 – 72
denpristay [2]

Answer:

5

Step-by-step explanation:

8 0
3 years ago
How do you find the average rate of change for f(x)=9-x^2 between two points: x=0 to x=3?
ICE Princess25 [194]

Answer:

The average rate of change is -3.

Step-by-step explanation:

We are given the function:

f(x)=9-x^2

And we want to find the average rate of change from <em>x </em>= 0 to <em>x </em>= 3.

In other words, we will compute the function at the two endpoints, and then find the slope of the line that crosses the two points.

For our first endpoint at <em>x</em> = 0, our function evaluates to:

f(0)=9-(0)^2=9

So, our first point is (0, 9).

For our second endpoint at <em>x</em> = 3, our function evaluates to :

f(x)=9-(3)^2=0

So, our second point is (3, 0).

Then by the slope formula, our average rate of change will be:

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3 0
3 years ago
(a) 50% of 164 (b)75%of 12 (c) 25/2 of 64
Pani-rosa [81]

Here goes the answer. Please mark brainliest.

7 0
3 years ago
Is .21 (with only the one repeating) a rational number? please explain why! thanks!
Nostrana [21]

21 is a rational number because it is an integer, which can be converted into a fraction.

<u>Step-by-step explanation:</u>

When a denominater and numerator are integers and gives a quotient then it is a rational number.

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8 0
3 years ago
In a group of 25 factory workers, 20 are low-risk and five are high-risk. two of the 25 factory workers are randomly selected wi
Aleks04 [339]
Let
L=event that a selected worker has low risk
H=event that a selected worker has high risk

We need to find
P(HL)+P(LH)
=5*20/(25*24)+20*5/(25*24)
=1/6+1/6
=1/3
6 0
3 years ago
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