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4 years ago

I need help please what is the x

Mathematics

1 answer:

ANEK [815]4 years ago

7 0

Answer:

x=4

Step-by-step explanation:

well you know that the square is 90 degrees so you set it up as 90=21x+6. Then you subtract 6 from both sides and it gets you 84=21x. Then divide 21 on both sides. So the answer is x=4

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Jenny was in charge of selling tickets to a family fun night at her school

ra1l [238]

I’ve attached my work below for #4
5) 8% is equivalent to 8 cents so each item was $1.08
Than you know he spent 16.20 so you divided
1.08/16.20 which equals 15
So he got 15 items
6) the moon is 250,000 miles away which is about driving around earth 10 times which would take 6 months (not sure about this one)

Hope this helps!
Have a nice day :)

4 0

4 years ago

The graph of a cosine function is shown. Which two points on the midline of the function are separated by a distance of one peri

Ray Of Light [21]

Answer: (pi/8, 1) and (5*pi/8, 1)

Step-by-step explanation:

First, the midline is a horizontal line that cuts the graph in two halves.

In this case, we can see that the maximum of the function is y = 2.5, and the minimum is y = -0.5

The difference is:

Diff = (2.5 - (-0.5)) = 3

If we subtract half of the difference (3/2 = 1.5) to the maximum, we get the midline.

Then:

midline: y = 2.5 - (3/2) = 1

the midline is the line y = 1

Now, a period T is such that:

Sin(x) = Sin(x + T)

Two points that are in the midline and that are separated by a period will be two points on the line y = 1, and that are in corresponding parts of the graph.

Here the two points are, counting from left to right, the third and the 11th.

(both of them are in the line y = -1 and in the negative slope part).

The points are:

(pi/8, 1) and (5*pi/8, 1)

6 0

3 years ago

Read 2 more answers

This system of linear inequalities can be used to find the possible heights, in inches, of Darius, d, and his brother William, w

olga55 [171]

Answer:

There is a possibility that Darius is 138 inches.

Step-by-step explanation:

Imagine william is 67 (Close integer less than 68)

d can be equal to 4 + 2(67)

D is less than or equal to 138 inches.

4 0

4 years ago

In a Euler diagram, “No X are Y” would be represented how?

MA_775_DIABLO [31]

Answer: Two separated circles, one called X and the other called Y.

(so there is no element of the set X that is also in the set Y)

Step-by-step explanation:

"No X are Y"

This means that there is not a single element in the set X that is also in the set Y.

So in an Euler diagram, you can represent this as two circles, one called Y and other called X, where the circles do not intersect or touch at any point.

This particular case is represented similarly to how you would represent it in a Venn diagram

7 0

3 years ago

Read 2 more answers

Help me!!!!! I really need to pass this

zlopas [31]

Answer:

Its A

Step-by-step explanation:

Tutor approved. I hope this helps you

6 0

3 years ago