2 years ago

PLS HELP MEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE

Mathematics

1 answer:

SpyIntel [72]2 years ago

4 0

Answer:

Um.... quick question what are the problems because the file don't work!

Step-by-step explanation:

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2. If f(x) = x - 7 and g(x) = 2x + 5, then what is f(x) * g(x)?

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Answer:

2x² - 9x - 35

Step-by-step explanation:

f(x) × g(x) = (x - 7)(2x + 5)

Each term in the second factor is multiplied by each term in the first factor, that is

x(2x + 5) - 7(2x + 5) ← distribute both parenthesis

= 2x² + 5x - 14x - 35 ← collect like terms

= 2x² - 9x - 35

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3 years ago

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3 years ago

The sum of 8 times a number and 15 is 7

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8x+15=7

answer: x= 1 hope this help

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3 years ago

Assume you have applied for two scholarships, a Merit scholarship (M) and an Athletic scholarship (A). The probability that you

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0.11 I don’t know 0.3

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2 years ago

The area of a rectangle is 72 cm square. The length of the rectangle is 6 cm longer than the width. What is the width of the rec

miskamm [114]

The correct option will be : B) 6 cm.

Explanation

Suppose, the width of the rectangle is $x$ cm.

As, the length is 6 cm longer than the width, so the length will be: $(x+6) cm.$

Formula for the Area of rectangle is: $(Length)*(Width)$

Given that, the area of a rectangle is 72 cm²

So....

$x(x+6)=72\\ \\ x^2+6x-72=0\\ \\ (x+12)(x-6)=0$

Using zero-product property, we will get...

$x+12=0\\ x= -12$ (Negative value is ignored as width can't be negative)

and

$x-6=0\\ x=6$

So, the width of the rectangle is 6 cm.

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3 years ago