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Mademuasel [1]
3 years ago
14

Factor the expression 4b^2-9

Mathematics
2 answers:
iren [92.7K]3 years ago
7 0

Answer:

answer is 7

Step-by-step explanation:

4b squared minus 9,16 is 4b squared because 4 time 4 is 16.thats how you would solve squared.then you want to minus 16 by 9,then your answer should be 7.

zlopas [31]3 years ago
7 0

Answer:

(2b - 3)(2b + 3)

Step-by-step explanation:

4b² - 9 ← is a difference of squares and factors in general as

a² - b² = (a - b)(a + b)

4b² = (2b)² ⇒ a = 2b and 9 = 3² ⇒ b = 3, so

4b² - 9 = (2b)² - 3² = (2b - 3)(2b + 3)

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Lyrx [107]

Answer:

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Step-by-step explanation:

3 0
3 years ago
Choose the ratio that you would use to convert 6.1 hours to minutes.
lutik1710 [3]

Answer:

Step-by-step explanation:

Let the number of minutes in 6.1 hours be x. Remember that there are 60 minutes in one hour. Therefore,

If 60 minutes = 1 hour,

Then

x minutes = 6.1 hours

Cross multiplying, it becomes

x × 1 = 6.1 × 60 minutes

x = 6.1 × 60 minutes/1

Therefore, the correct ratio with which 6.1 hours would be multiplied is

60 minutes/1 hour

3 0
4 years ago
Find the x- and y-intercept of the line <br> X+4y=36
NNADVOKAT [17]
The answer:
(36,0) (0,9)

6 0
3 years ago
Please help me asap!!!
Dmitry [639]

Answer:

So here is how we are going to get the measure of angle 2.

Since given that angle COE measures 55°, we will equate m∠2 = 2x and m∠3 = x+10 with 55. So, 55 = 2x + x + 10

55 = 3x + 10

55-10 = 3x

45 = 3x << divide both sides by 3 and the result is

15 = x

So now that we know x, we can now solve for angle 2.

m∠2 = 2x

m∠2 = 2(15)

m∠2 = 30°

I hope that this is the answer that you are looking for.

5 0
3 years ago
Are they correct? Why or why not? answer correctly thank you 10 points.
Kitty [74]

Answer:

No.

Step-by-step explanation:

the system of equations provided in the condition consists of two linear equations in slope-interception form. The slope of the 1st equation is equal to the slope of 2d equation. It means, the lines are parallel. In other words, no solution of this system, they are not correct.

Answer: no.

8 0
2 years ago
Read 2 more answers
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