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2 years ago

Evaluate the expression when a=-2 and x=6. \ 4x-a

Mathematics

1 answer:

Digiron [165]2 years ago

4 0

Answer:

Step-by-step explanation:

Given

4x - a ← substitute a = - 2, x = 6 into the expression

= 4(6) - (- 2) [ note - (- ) is equivalent to + ]

= 24 + 2

= 26

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3 years ago

Can someone please help me answer this

maria [59]

Answer:

(-2,6)

Step-by-step explanation:

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2 years ago

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Solve the inequality. 3 + h < 0

ipn [44]

Answer:

C. h<-3

Step-by-step explanation:

3+h<0

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3 years ago

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Softa [21]

Answer:

Part a .............> x = 11

Part b .............> k = 57.2

Part c .............> y = 9.2

Explanation:

The three problems deal with inverse variation between two variables

An inverse variation relation between two variables means that when one of the variables increases, the other will decrease (and vice versa)

Mathematically, an inverse variation relation is represented as follows:

$y = \frac{k}{x}$

where x and y are the two variables and k is the constant of variation

Now, let's check the givens:

Part a:

We are given that y = 3 and k = 33

Substitute in the original relation and solve for x as follows:

$y = \frac{k}{x}\\ \\3 = \frac{33}{x}\\ \\x=\frac{33}{3}=11$

Part b:

We are given that y = 11 and x = 5.2

Substitute in the original relation and solve for k as follows:

$y=\frac{k}{x}\\ \\11=\frac{k}{5.2}\\ \\k=11*5.2=57.2$

Part c:

We are given that x=7.8 and k=72

Substitute in the original relation and solve for y as follows:

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Hope this helps :)

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3 years ago

If you jog at a rate of 9 kilometers per hour, how long will it take you to

Schach [20]

Answer:

1.66667

Step-by-step explanation:

9------1

15-----?

We divide 9 by 9 to get 1 so we divide 15 by 9 to get ?

15 / 9 = 1.66667

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2 years ago

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