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ElenaW [278]
4 years ago
5

What are the factors of the expression below? -x+2x+35

Mathematics
2 answers:
Serhud [2]4 years ago
6 0

The answer is A

Good luck

gulaghasi [49]4 years ago
5 0

Answer:

A

Step-by-step explanation:

Given

- x² + 2x + 35 ← factor out - 1 from each term

= - 1 (x² - 2x - 35)

To factor the quadratic inside the parenthesis

Consider the factors of the constant term (- 35) which sum to give the coefficient of the x- term (- 2)

The factors are - 7 and + 5

since - 7 × + 5 = - 35 and - 7 + 5 = - 2, hence

x² - 2x - 35 = (x + 5)(x - 7)

- x² + 2x + 35 = - 1 (x + 5)(x - 7) → A

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△XYZ was reflected over a vertical line, then dilated by a scale factor of , resulting in △X'Y'Z'. Which must be true of the two
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Answer:

correct option is △XYZ ~ △X'Y'Z'.

Step-by-step explanation:

since ΔXYZ is dilated by some scale factor so, the resulting triangle can not be congruent to the ΔXYZ. so option 2 is wrong.

as we have explained that the two triangles are not congruent then it's sides and angles also can't be congruent so, option 3 is also incorrect.

As we don't know by what factor the triangle XYZ is dilated so we can't say anything about correctness of option 4 and 5.

ΔXYZ  was reflected over a vertical line and then dilated so the resulting ΔX'Y'Z' is similar to ΔXYZ.

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Evaluate the function rule for the given value.<br> y = 8.3x for x = 4
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The value of the function y = 8.3x for x = 4  is 33.2.

The given function is y = 8.3x and x=4.

We need to evaluate the function rule for the given value y = 8.3x for x = 4.

<h3>What is the function?</h3>

In mathematics, a function from a set X to a set Y assigns to each element of X exactly one element of Y. The set X is called the domain of the function and the set Y is called the codomain of the function.

Now, substitute x = 4 in y = 8.3x.

That is, y = 8.3(4)=33.2

Hence, the value of the function y = 8.3x for x = 4  is 33.2.

To learn more about the function visit:

brainly.com/question/21145944.

#SPJ1

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