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3 years ago

Please help r ÷ 16 = 4 r = ____

Mathematics

2 answers:

leonid [27]3 years ago

6 0

4 x 4 = 16

16 / 4 = 4

r = 4

Hope this Helps:)))

cestrela7 [59]3 years ago

4 0

Hey there :)

r ÷ 16 = 4
$\frac{r}{16}$ = 4

Since 16 is divided by r, we multiply it on the other side to isolate r and find its value

r = 16 × 4
r = 64

Your answer will be 64

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What is the volume of a square pyramid with base edges of 60 inches and a height of 10 inches?

vichka [17]

Answer:

The volume is $12000 in^3$

Step-by-step explanation:

From the question ,

$L= 60\:in.$ and $H=10\:in.$

The volume of a pyramid is given as

$V=\frac{1}{3} \times area\:of\:the\:base \times height$

From the question, the base of the pyramid is a square.

Hence base area is given by $L^{2}$

This implies that the volume of the pyramid is

$=\frac{1}{3} \times L^{2}\times H$

$=\frac{1}{3}\times 60^{2} \times 10$

$=\frac{36000}{3}$

$=12000 in^3$

6 0

2 years ago

Divide.

nika2105 [10]

-0.8 that is the answer hope it helps

3 0

2 years ago

Plz do not delete my questions. I will give you 30 points for these three questions. A thanks. And a 5 star rate. But in order f

poizon [28]

(1) The surface area of the square pyramid = 4 * (area of one face) + area of the base
area of one face = 0.5 * 34.2 * 28.4
area of the base = 34.2 * 34.2
∴ The surface area of the pyramid = 4 * (0.5 * 34.2 * 28.4) + 34.2 * 34.2

By comparing the last answer with the answer of Vikram, we find that:
He used the wrong expression to represent the area of the base of the pyramid.
=========================================================

(2) The surface area of the rectangular pyramid
= area of two face with the height 36.5 + area of two face with the height 37.8 + area of the base

area of two face with the height 36.5 = 2 * 0.5 * 36.5 * 25.6
area of two face with the height 37.8 = 2 * 0.5 * 37.8 * 16.2
are of the base = 25.6 * 16.2

Total area = (2 * 0.5 * 36.5 * 25.6) + (2 * 0.5 * 37.8 * 16.2) + (25.6 * 16.2)
= (36.5 * 25.6) + (37.8 * 16.2) + (25.6 * 16.2)
note: 2 *0.5 = 1

By comparing the last answer with the answer of Tracy , we find that:
Tracy’s answer will be correct because she made use of the fact that 2 (1/2) = 1 in her expression.
=========================================================

(3)
the total surface area of this rectangular pyramid =
= area of two face with the height 52 + area of two face with the height 60 + area of the base

area of two face with the height 52 = 2 * 0.5 * 52 * 78 = 4,056 m²
area of two face with the height 60 = 2 * 0.5 * 60 * 50 = 3,000 m²
are of the base = 78 * 50 = 3900 m²

Total area = 4,056 + 3,000 + 3,900 = 10,956 m²

3 0

2 years ago

Read 2 more answers

Which of these is equal to cos 19°? A) sin 71° B) sin 81° C) cos 71° D) cos 81°

Over [174]

Cos α = sin (90-α) so cos 19 = sin 90-19 = sin 71

7 0

2 years ago

Read 2 more answers

Find the tangent of each angle that is not the right angle. Drag and drop the numbers into the boxes to show the tangent of each

omeli [17]

Answer:

tan D = $\frac{6}{11}$ or 0.545

tan F = $\frac{11}{6}$ or 1.833

Step-by-step explanation:

To find tangent is always $\frac{opposite}{adjacent}$

so the opposite of angle D is line EF which is 4.8 and the adjacent side is line ED which is 8.8 so $\frac{4.8}{8.8}$ which is $\frac{6}{11}$ or 0.545

The opposite of angle f is line ED which is 8.8 and the adjacent is line EF which is 4.8 so $\frac{8.8}{4.8}$ is $\frac{11}{6}$ or 1.833

3 0

2 years ago