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Free_Kalibri [48]
3 years ago
12

What is the value of x? -2x = 8

Mathematics
1 answer:
STatiana [176]3 years ago
6 0
This is a simply problem. Just divide both sides the coefficient of x. Which is -2.

And the answer will be x = -4
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How do you find out what percent 10 is of 15
True [87]

Answer:

66.7 % is the answer

Step-by-step explanation:

You do 10 divided by 15 and then times by 100 to get the percentage

4 0
3 years ago
What is the range of y = –3sin(x) – 4?
nydimaria [60]

Answer:

The required range of the function y=-3\sin (x)-4 is [-7,-1]

Step-by-step explanation:

Given : Function y=-3\sin (x)-4

To find : What is the range of the given function?

Solution :

The range is defined as the variation in which any function is defined.

We know that the sin function lies between [-1,1]

-1\leq \sin x\leq 1  .....(1)

The required function is y=-3\sin (x)-4

Multiply equation (1) by -3

-3\leq -3\sin x\leq 3  .....(2)

Now, we subtract equation (2) by 4

-3-4\leq -3\sin x-4\leq 3-4  

-7\leq -3\sin x-4\leq -1  

Therefore, The required range of the function y=-3\sin (x)-4 is [-7,-1].

3 0
4 years ago
Read 2 more answers
−(−2−5x)+(−2)=18 solve for x
lisov135 [29]
PEMDAS: distribute the negative to (-2-5x) so it becomes (2+5x)+(-2)=18

Add 2 to both sides: 2+5x=20

Subtract 2: 5x=18

Divide 5: x= 18/5
4 0
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Melinda is planning for retirement so she makes monthly deposits of $420 in an account earning 5% compounded monthly for 30 year
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