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alex41 [277]
3 years ago
10

What is (2v+5)(2v-5)

Mathematics
1 answer:
DedPeter [7]3 years ago
3 0

Answer:

4v^2-25

Step-by-step explanation:

(2v+5)(2v-5)

Using (a-b)(a+b)=a^2-b^2, simplify the product

(2v)^2-5^2

To raise a <u>product to a power</u>, raise each factor to that power.

4v^2-5^2

Evaluate the <u>power.</u>

4v^2-25

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Find the two correct values of x in the equation 3x² = y when y = 75.​
valentina_108 [34]

Answer:

5 and -5

Step-by-step explanation:

3x² = 75

x² = 75/3

x² = √25

x = 5 and - 5

3 0
2 years ago
The measurement of the complement of an angle exceeds the measure of the angle by 25%. Find the measurement of the angle and its
tester [92]
Let the angles be A and C 

<span>Complimentary angles, therefor </span>
<span>A + C = 90 </span>

<span>The measurement of the complement of an angle exceeds the measure of the angle by 25% (you used a % sign so I'll use % instead of degrees) </span>
<span>C = 1.25A </span>

<span>Substitute </span>
<span>A + 1.25A = 90 </span>
<span>2.25A = 90 </span>
<span>A = 40º <----- </span>
<span>C = 50º <----- </span>
<span>------------------------------ </span>

<span>If you meant 25º </span>
<span>A + (A + 25) = 90 </span>
<span>2A + 25 = 90 </span>
<span>2A = 65 </span>
<span>A = 32.5º </span>
<span>C = 57.5º</span>
3 0
3 years ago
(I am giving branlest) plz help
Rudiy27

Answer:

huhhh??

Step-by-step explanation:

i didn't unxerstand the question

5 0
3 years ago
Read 2 more answers
Stephanie planted a home garden. She planted 2 rows of tomatoes with 4 tomato plants in each row. She also planted squash in row
natulia [17]

Answer:

B

Step-by-step explanation:

it is known that 8 tomato plants were planted in total

( 2 rows with 4 plants each equal to 8 plants in total)

however there is X amount of rows of squash with 7 plants in each row

therefore in an equation it would be  y= 7x+8

3 0
4 years ago
What is the decimal place after the hundredths? this is just for fun:)
soldier1979 [14.2K]
Its the thousandths. 
3 0
3 years ago
Read 2 more answers
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