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8090 [49]
3 years ago
13

PLEASE HELP ME~! NEED THIS ASAP

Mathematics
1 answer:
BlackZzzverrR [31]3 years ago
8 0

Answer:

B

Step-by-step explanation:

since y and x vary directly the equation relating them is

y = kx ← k is the constant of variation

to find k use any ordered pair from the list given

using x = 4 when y = - 2, then

k = \frac{y}{x} = \frac{-2}{4} = - 0.5 → B


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Which shows one way to determine the factors of y3 – 9x2 + 5x – 45 by grouping
Gnoma [55]

Answer:

(x²+5)(x-9)

Step-by-step explanation:

Assuming that you are asking to factor by grouping:

x³ - 9x² + 5x – 45

You can group:

x²(x-9) + 5(x-9)

and then combine the x² and 5:

(x²+5)(x-9)

4 0
3 years ago
Factor the polynomial. 30xy+36x^2+30x+25y
zavuch27 [327]
30xy + 36x^2 + 30x + 25y

= 6x(5y + 6x) + 5(6x + 5y)

= (6x + 5)(6x + 5y)  Answer
7 0
3 years ago
expresa en lenguaje algebraico: la suma de los cuadrados de las edades de maria y miriam, si se sabe que maria tiene el doble de
Anna71 [15]

The sum of the squares of their ages is; 5x²

<h3>How to Solve Algebraic Word Problems?</h3>

We are told that Maria is twice the age of Miriam.

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Age of Mariam = x

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x² + (2x)²

= x² + 4x²

= 5x²

Read more about Algebraic Word Problems at; brainly.com/question/13818690

#SPJ1

The complete question is;

Express in algebraic language: the sum of the squares of the ages of Maria and Miriam, if it is known that Maria is twice the age of Miriam.

3 0
2 years ago
The price of an item has been reduced by 75%. The original price was 35
olasank [31]

Answer:

75% of 35 is 8.75

Step-by-step explanation:

5 0
3 years ago
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mash [69]

Answer:

a

Step-by-step explanation:

5 0
3 years ago
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