3 years ago

Which expression is the factorization of x^2+10+21

Mathematics

1 answer:

Stels [109]3 years ago

3 0

Answer:

x^2 - 10x + 21 = (x - 3)(x - 7)

Step-by-step explanation:

x^2 - 10x + 21

Find the two numbers that when added equal - 10, and when multiplied equal 21.

The number - 3 and -7 meet the criteria.

x^2 - 10x + 21 = (x - 3)(x - 7)

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Emma bought 7 notebooks for $8.75. How much would 2 notebooks cost?

goldenfox [79]

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4 years ago

Help. I will give brainliest if correct. A. -4/3 B. -3/4 C. 10/17 D. 17/10

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The correct option is option B.

The common difference between given data is -3/4.

<h3>What is Sequence?</h3>

A sequence is an enumerated collection of objects in which repetitions are allowed and order matters.

Here, given points;

x₁ = 1 , x₂ = 2 and y₁ = -3.75 , y₂ = -4.5

Now,

d = (y₂ - y₁)/(x₂-x₁)

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2 years ago

What is 16,900 in scientific notaion?

Wewaii [24]

$1\underbrace{6,900}_{\leftarrow4}=1.6900\times10^4=\boxed{1.69\times10^4}$

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3 years ago

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