3 years ago

Solve for x A) -2 B) -1 C) 3 D) -10

Mathematics

1 answer:

Natalka [10]3 years ago

8 0

Answer:

-2

Step-by-step explanation:

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Chọn ngẫu nhiên 15 sản phẩm từ 1 lô hàng có tỉ lệ sản phẩm loại 1 là 10%. Tìm xác suất để trong 15 sản phẩm chọn được có:

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Answer:

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3 years ago

Solve 4/x + 8/x+2 = 4

Trava [24]

Answer:

x = 0 and x = 3

Step-by-step explanation:

I will assume that you mean:

4 8

---- + --------- = 4

x x + 2

Here the LCD is x(x + 2).

Multiplying all 3 terms by x(x + 2), we get:

4(x + 2) + 8x = 4(x)(x + 2), or

4x + 8 + 8x = 4x^2 + 8x

Cancelling the 8x terms, we have:

12x = 4x^2, or 3x = x^2, or x^2 - 3x = 0.

Factoring, we get x(x - 3) = 0, which results in x = 0 and x = 3.

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3 years ago

Michael is paid $9 per hour to work at the movie theater and $7 per hour when he helps his aunt at her bakery. Michael cannot wo

evablogger [386]

if he works at the theater he can make $288 in 32 hours, if he works at his aunts he can make $224 in 32 hours. he should work at the theater to meet his goal.

I really hope this helps

4 0

3 years ago

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How do I get the answer for this quadratic equation in simplest form?

konstantin123 [22]

Answer:

x = 7 ± $\sqrt{15}$

Step-by-step explanation:

Given

4(x - 7)² - 48 = 12 ( add 48 to both sides )

4(x - 7)² = 60 ( divide both sides by 4 )

(x - 7)² = 15 ( take the square root of both sides )

x - 7 = ± $\sqrt{15}$ ( add 7 to both sides )

x = 7 ± $\sqrt{15}$

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3 years ago

Each serving of a cereal is 80 calories.which expression can be used to find the number of calories In 3 servings

valkas [14]

Answer:

$80\times3$

Step-by-step explanation:

Based on the given conditions, formulate: $80\times3$

Calculate the product or quotient: 240

get the result: 240

Answer: 240

To find this answer, we had to use the expression 80 * 3, therefore making it the answer.

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2 years ago

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