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nydimaria [60]
3 years ago
9

I need help on this!!

Mathematics
1 answer:
Setler [38]3 years ago
5 0
36x² - 100 = 4(9x²-25) = 4(3x+5)(3x-5)

B. 4(3x+5)(3x-5)
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Can someone please explain with answer?
ira [324]

Using: A^2+b^2=c^2

A&b= (√10)^2=10

10+10=c^2

20=c^2

(take the square root of 20)

c=2√5

Your answer is D

7 0
3 years ago
Read 2 more answers
A car is said to get 25 miles per gallon on a highway, but this value can fluctuate by 6 miles per gallon, at most. Which of the
Pepsi [2]

Answer:

| x1 -25\ | \leq\ 6 is the correct answer to the given question.

Step-by-step explanation:

Missing information

In this question options are missing.Following are the option

(a) | x1 -25\ | \leq\ 6

(b) | x1 - 6 |\ > 25

(c)| x1 +25 |\ \leq \ 6

(d) | x1 +25 |\ > 6

As mention in the question On the highway, car is said to get 25 miles per gallon

We assume x1= 25

also that the value of x1 is fluctuate by 6 miles per gallon

x1 \leq \ 25\ \pm\ 6

This can be written as

x1\ -25 \leq \  \pm\ 6

Therefore

| x1 -25\ | \leq\ 6 is the answer

8 0
2 years ago
Read 2 more answers
16. What is the area of a triangle that has a base of 8 inches and a height of 3 inches?​
Luden [163]
<h2>Answer:</h2>

A=12in²

Step-by-step explanation:

b Base 8in

hb Height 3in

A=hbb

                                    2=3·8

                                                                                 2=12in²

7 0
3 years ago
Given ix) = 17 - x2, what is the average rate of change in f(x) over the interval [1, 5]?
TEA [102]
<h3>Answer:   -6</h3>

======================================================

Explanation:

Plug in x = 1

f(x) = 17-x^2

f(1) = 17-1^2

f(1) = 17-1

f(1) = 16

Repeat for x = 5 to find that f(5) = -8

Now we'll use the formula below to find the average rate of change from x = a to x = b.

m = \frac{f(b)-f(a)}{b-a}\\\\m = \frac{f(5)-f(1)}{5-1}\\\\m = \frac{-8-16}{4}\\\\m = \frac{-24}{4}\\\\m = -6\\\\

The average rate of change is -6

The formula is basically the slope formula, more or less. So that's why I used 'm' to represent the average rate of change.

The average rate of change on the interval [1,5] is the same as finding the slope through the lines (1, 16) and (5, -8)

4 0
3 years ago
Really, really easy!
sp2606 [1]
The first equation would be 650p+2200s =18150 
The second equation would be p + s =16

4 0
3 years ago
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