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astra-53 [7]
3 years ago
8

42. Error Analysis Describe and correct the error made

Mathematics
1 answer:
SashulF [63]3 years ago
3 0

Answer:

(3x + 7)(3x - 7)

Step-by-step explanation:

9x² - 49 ← is a difference of squares and factors in general as

a² - b² = (a + b)(a - b) , then

9x² - 49

= (3x)² - 7²

This is where the error has been made in that 9x has been used instead of 3x

= (3x + 7)(3x - 7) ← in factored form

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EleoNora [17]

Answer:

option B

hope its helpful

make me brainliest plz

sorry if it isn't correct

6 0
3 years ago
Anyone know how to solve this?
Viktor [21]
Calculate the volume of the cylinder in square feet.
Pi•r^2•h
3.14•2^2•6
3.14•4•6
3.14•24


Then multiply by 62.5 lbs/ft^2
3.14•24•62.5
3 0
3 years ago
If y varies directly with x, and y is 14 when x is 2, what is the value of x when y is 35?
Ainat [17]
Im pretty sure it's 17.5 since 35 is odd.
4 0
3 years ago
Read 2 more answers
Use the distributive property to remove the parentheses.<br> -4(-6y + 2w-4)
olga_2 [115]

Answer: 24y - 8w + 16

Step-by-step explanation:

Basically to remove the parenthesis you just distribute the -4 outside of the parenthesi and you get 24y - 8w + 16.

4 0
3 years ago
Need help w this! will give brainliest and thanks to best answer :o) tysm&lt;3
Montano1993 [528]

Answer:

A. They will pay more with the new price plan.

B. The new price plan would be cheaper.

Step-by-step explanation:

A. They will pay more with the new price plan.

For the current price plan, you would add the $3 rent to the two games (which are $4 each). This basically means:

$3 + $4 + $4 = $11

For the new price plan, you would add the $11 rent to the two games (which are $2 each). This basically means:

$11 + $2 + $2 = $15

Therefore, you pay more for the new price plan.

B. Using similar logic as part A, the current price plan 7 games would cost:

$3 + [7 x ($4)] = $31    (multiply by 7 since they play 7 games)

For the newprice plan, 7 games would cost:

$11 +  [7 x ($2)] = $25    (multiply by 7 since they play 7 games)

Therefore, the new price plan would be cheaper.

Hope this helps :)

3 0
3 years ago
Read 2 more answers
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