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3 years ago

HEWP PWS :c I don’t know da answer x.x

Mathematics

2 answers:

Oksi-84 [34.3K]3 years ago

8 0

Answer:

(I think its C sorry if i get you wrong)

(Hope this helps)

Sergio039 [100]3 years ago

7 0

Answer:

The answer is C.

Step-by-step explanation:

C.) y=10 (0.13)^x

The number inside parentheses is less than one so the number would decrease.

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Twelve round gold medals each with a radius of three inches just fit inside a box with four medals in each of the three rows a r

Anna35 [415]

Answer: The answer is 84 inches.

Step-by-step explanation: It is given that twelve round gold medals fit inside a box where 4 medals are placed in one ray. So, the number of rows in the box is 3.

The radius of each gold medal = 3 inches.

Therefore, diameter of each gold medal = 2 × 3 = 6 inches.

The box is obviously in the rectangular form where

$\textup{length} = 6\times 4=24~\textup{inches}\\\textup{and}\\\textup{Breadth}=6\times 3=18~\textup{inches}.$

The red tape fits snugly around the sides of the box, so it will cover whole of the box.

Therefore, the length of the tape = 24+18+24+18 = 84 inches.

6 0

3 years ago

A square pyramid has a base edge of 2 inches and a slant height of 5 in. Find it’s volume

Triss [41]

Volume of the pyramid is V = (Bh)/3 where B is the base area of the pyramid and h is the height to the pyramid.

B = 2(2) = 4in²
To find h, we need to use the Pythagorean theorem. The height of the pyramid is actually an altitude that drops straight down from the vertex of the pyramid perpendicular to the Base hitting the Base in the center. Therefore, the distance from where the altitude hits the Base and the edge of the Base is equal to 1. We are given the slant height as 5 inches so we can now use the theorem to find the height of the pyramid.
h² + 1² = 5²
h² = 5² - 1²
h² = 25 - 1
h² = 24
$h = \sqrt{24}$
$h=2 \sqrt{6}$
Now we can find the Volume:
V= (Bh)/3
$V= \frac{[4(2 \sqrt{6} )]}{3}$
$V = \frac{8}{3} \sqrt{6}$
This is about 6.5 in³ of volume

6 0

3 years ago

Number 12 find the <br> Value of XandY in the diagram below

valina [46]

Answer:

bnnnnbbbbbbbbbbbbbbbb

Step-by-step explanation:

4 0

3 years ago

The top of the Boulder Dam has an angle of elevation of 1.2 radians from a point on the Colorado River. Measuring the angle of e

Nana76 [90]

Answer:

382.925 feets

Step-by-step explanation:

The solution diagram is attached below :

Converting radian measurement to degree :

radian angle * 180/π = degree angle

1.2 * 180/π = 68.755°

0.9 * 180/π = 51.566°

Height of dam is h:

Using trigonometry :

Tan θ = opposite / Adjacent

Tan 68.755° = h / x

h = x Tan 68.755° - - - (1)

Tan 51.566° = h / (155+x)

h = (155+x) tan 51.566° - - - (2)

Equate (1) and (2)

x Tan 68.755 = (155+x) Tan 51.566

x Tan 68.755 = 155tan 51.566 + x tan 51.566

x Tan 68.755 = 195.32311 + x Tan 51.566

x Tan 68.755 - x Tan 51.566 = 195.32311

x(tan 68.755 - tan 51.566) = 195.32311

x * 1.3120110 = 195.32311

1.3120110x = 195.32311

x = 195.32311 / 1.3120110

x = 148.87307

Using :

h = x Tan 68.755

h = 148.87307 * tan(68.755)

h = 382.92539

h = 382.925 feets

5 0

3 years ago

Simplify the following expression. Write the result using positive exponents only. Assume that all bases are not equal to 0.

Levart [38]

Photo math is ya bestfriend
1/ x^40y^45

4 0

3 years ago