3 years ago

Which statement is correct?

Mathematics

1 answer:

abruzzese [7]3 years ago

3 0

Answer:

gvhbh

Step-by-step explanation:.

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Imagine you are teaching a younger student how to factor. Describe in full sentences what you would say to teach the young stude

djyliett [7]

Answer:

$x^2+ 4x - 21$ =(x-3)(x+7)

Step-by-step explanation:

To factor the trimonial: $x^2+ 4x - 21$ , we follow these steps:

Step 1: Multiply the first and last term

$-21 \times x^2=-21x^2$

Step 2: List out product factors of the term derived above

$-21=-1 \times 21\\ -21=-3 \times 7\\-21=3 \times -7\\-21=1 \times -21$

Step 3: Determine which of the factors sum up to the middle term 4x

The required product is: -3 and 7

Therefore: -3x+7x=4x

Step 4: Replace the middle term by the expression derived in step 3 and factorize.

$x^2+ 7x -3x- 21\\=x(x+7)-3(x+7)\\=(x-3)(x+7)$

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3 years ago

A computer’s random number generator produces random integers from 1 to 50. What is the probability that the first 3 integers ge

malfutka [58]

Answer:

A. 0.0058

Step-by-step explanation:

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3 years ago

Lorena received a $50 gift card to an online store she wants to purchase some bracelets that cost $8 each there will be a $10 ov

Setler79 [48]

Minus the 10 from the 50, which makes 40. then divide 40 by 8
50-10=40
40÷8=5
n=5

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3 years ago

Evaluate. 9^2 • ( 1/3) ^2 - 9 A) 1/9 B) 0 C) 1 D) 9 if right brainest

anzhelika [568]

Answer:

Step-by-step explanation:

9^2 * (1/3)^2 -9

PEMDAS says powers first

81 * 1/9 -9

Then multiply

9 -9

Then subtract

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3 years ago

Please help me I’m terrible at math

Katen [24]

Answer:

Moderate

Step-by-step explanation:

they are reversed

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