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3 years ago

I know how to do this but I just want to spend some points. :)

Mathematics

1 answer:

julia-pushkina [17]3 years ago

3 0

Answer:

confused........ can you do details

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Find the value of x. <br> Area of circle = 25(pi) <br> radius = x + 3

horsena [70]

$\\\text{Given that, radius, r =x+3}\\\\\text{Area of circle} = 25 \pi\\\\\implies \pi r^2 = 25 \pi\\\\\implies r^2 = 25\\\\\implies r = \sqrt{25} =5\\\\\implies x+3 = 5\\\\\implies x = 5-3 =2$

6 0

2 years ago

Select the pair of slopes that are the slopes of perpendicular lines

Elodia [21]

Answer:

do you have a picture

Step-by-step explanation:

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3 years ago

What is the enlargement ratio if you enlarge the figure to have a width of 16 units and length of 12 units

Fantom [35]

Answer:

The enlargement ratio is 3:4

Step-by-step explanation:

We are given

a width of 16 units and length of 12 units

so,

$W=16$

and

$L=12$

now, we can find enlargement ratio

we can use formula

enlargement ratio = (length)/(width)

$=\frac{L}{W}$

now, we can plug values

$=\frac{12}{16}$

now, we can simplify it

$=\frac{3}{4}$

So,

The enlargement ratio is 3:4

6 0

3 years ago

Whats the volume?<br><br> B= 37.6 cm²; h= 20 cm

Georgia [21]

Answer:

752 cm^3

Step-by-step explanation:

Find the volume with: base x length x height

37.6 x 20 = 752

8 0

3 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