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Rzqust [24]
2 years ago
13

The radius of a semicircle is 4 kilometers. What is the semicircle's diameter? I need this please

Mathematics
1 answer:
sergeinik [125]2 years ago
7 0

Answer:

diameter = 8 km

Step-by-step explanation:

the diameter is equal to 2 times the radius

diameter = 2r

diameter = 2 • (4 km)

diameter = 8 km

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Help me please !!!!!
barxatty [35]

Answer:

C.)      Triangle TUV ~ Triangle WXY

Step-by-step explanation:

Find  the angles that are equal in each triangle, and put them in the same position in the statement.

T and W are equal; therefore, they are first in each.

U and X are equal; therefore, they are second in each.

V and Y are equal; therfore, they are last in each.

4 0
3 years ago
Using the net below, find the surface area
maw [93]

Answer:

Surface area = 90 cm²

Step-by-step explanation:

Given net of the rectangular prism shows the dimensions as,

Length = 5 cm

Width = 5 cm

Height = 2 cm

`Expression for the surface area of a rectangular prism = 2(lb + bh + hl)

Here, l = length

w = width

h = height

By substituting the values in the expression,

Surface area = 2(5×2 + 5×2 + 5×5)

                      = 2(10 + 10 + 25)

                      = 90 cm²

8 0
3 years ago
True or false: the set of whole numbers is equal to the set of natural numbers
kirill115 [55]

Answer:

False

Step-by-step explanation:

This statement is false.

The set of whole numbers include the set of Natural numbers "N" = {1, 2, 3, 4, 5, 6, ...}, the set of the negatives of the natural numbers: {-1, -2, -3, -4,...}, and the zero: {0}

We see then that the set of Natural numbers is a subset of the set of whole numbers Z = {... -4,-3,-2,-1, 0,1, 2, 3, 4, 5, ...}

6 0
3 years ago
Read 2 more answers
What is an equation in point-slope form of the line that passes through the point (8, 5) and has slope −7?
Masteriza [31]

Answer:

y - 5 = -7(x - 8)

Step-by-step explanation:

We can immediately adapt y - k = m(x - h) as follows:  replace m with -7, h with 8 and k with 5, obtaining:

y - 5 = -7(x - 8)

This is the desired equation in point-slope form.

7 0
3 years ago
Which is a perfect square?​
tiny-mole [99]

Answer:

A perfect square is a number, from a given number system, that can be expressed as the square of a number from the same number system.

5 0
3 years ago
Read 2 more answers
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