3 years ago

What is the result when 12x2-7y2 is added by -10x2+y2?

Mathematics

1 answer:

madam [21]3 years ago

4 0

Answer:

Step-by-step explanation:

12x² - 7y² - 10x² + y² = 12x² - 10x² - 7y² + y²

= (12 - 10)x² + (-7 + 1)y²

= 2x² + (-6y²)

= 2x² - 6y²

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Use the distributive property and the greatest common factor (GCF) to write an equivalent expression: 32x + 24 Question 2 option

Anna11 [10]

Answer:

D. 8(4x + 3)

Step-by-step explanation:

32x + 24

The greatest common factor between 32 and 24 is 8.

Options

A. 9(4x + 2) = 36x + 18 (Incorrect!)

B. 5(6x + 5) = 30x + 25 (Incorrect!)

C. 4(8x + 7) = 32x + 28 (Incorrect!)

D. 8(4x + 3) = 32x + 24 (Correct)

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3 years ago

21. 13/4 x 42/9 = O A. 132/18 B. 64/9 O C. 77/18 D. 41/6 Worth 2 points

ANTONII [103]

Hi! 13/4 X 42/9 = 91/6 or 91/6 ls there any other options to choose from?

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3 years ago

if the hypotenuse of a special triangle of 45 45 90 was 10 radical 6 how would u solve for the hypotenuse

Vinvika [58]

Just do it it’s quite easy

3 0

4 years ago

Alejandro uses the steps below to convert

dezoksy [38]

Answer:

The division was computed incorrectly.

Step-by-step explanation:

Given

Workings:

$\frac{5}{8}$ to percentage

$\frac{8}{5} = 1.6 = 160\%$

Required

Explain his error

The question says 5/8

Instead, Alejandro's working shows 8/5.

This working is done in an incorrect order and the correct solution is:

Let

$x = \frac{5}{8}$

Solve the fraction

$x = 0.625$

Multiply by 100%

$x = 0.625 * 100\%$

$x = 62.5\%$

Hence, option (a) is correct.

7 0

3 years ago

15/55 in simplest form

poizon [28]

The answer you are looking for is 3/11 because you can divide both numbers by five without having to further simplify it

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4 years ago