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3 years ago

Write the expression |5x - 4| without absolute value signs

Mathematics

1 answer:

Leokris [45]3 years ago

8 0

Answer:

Step-by-step explanation:

Basically those lines next to the problem are absolute value signs. Get rid of those then your problem is solved.

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The answer to this question is C

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Maddie is making pineapple punch for her birthday party. The recipe says you need 3 cups of pineapple juice for every 4 cups of

Fed [463]

She will need 12 cups of pineapple juice.
Example: 4 x 4 = 16
3 x 4 = 12

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An alloy consists of nickel, zinc, and copper in the ratio 2:7:9.

Alexus [3.1K]

Answer:

0.4kg, 1.4kg and 1.8kg

Step-by-step explanation:

Given parameters:

Mass of alloy = 3.6kg

Ratio of elements in the alloy = 2:7:9

Unknown:

Mass of each element in the alloy = ?

Solution:

To find the mass of each element in the alloy, first find the sum of the ratio;

2+7+9 = 18

Mass of nickel = $\frac{2}{18}$ x 3.6 = 0.4kg

Mass of zinc = $\frac{7}{18}$ x 3.6 = 1.4kg

Mass of copper = $\frac{9}{18}$ x 3.6 = 1.8kg

The mass of each metal is 0.4kg, 1.4kg and 1.8kg

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3 years ago

HELP PLZ I NEED IT

vladimir2022 [97]

Answer:

false

Step-by-step explanation:

18 is not = to 21

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3 years ago

Solve the equation by completing the square. ^x2- 12x = -28

Olegator [25]

x^2 -12 x = -28

(-12/2) ^ 2 =36

x^2 -12 x + 36 = -28 + 36

x^2 -12x + 36 = 8

(x-6)^2 = 8

take the square root of each side

x-6 = sqrt (8) x-6 = -sqrt (8)

you get a positive and a negative when taking the square root

x= 6 + sqrt (8)

x = 6 - sqrt (8)

sqrt (8) = 2 sqrt (2)

x= 6 + 2 sqrt (2)

x = 6 - 2 sqrt (2)

Answer:

x= 6 + 2 sqrt (2)

x = 6 - 2 sqrt (2)

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