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2 years ago

Hello! I need help with this

Mathematics

1 answer:

Verdich [7]2 years ago

6 0

Answer:

y = -16.25

Step-by-step explanation:

$26=-\frac{8}{5}y$

It can also be written as

$26=\frac{-8y}{5}$

-8y = 26 * 5

-8y = 130

y = 130/-8 = - 65/4 = -16.25

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PLEASE HELP ASAP !!

wariber [46]

Answer:

First figure: $954cm^3$

Second figure: $1,508yd^3$

Third figure:

Height= q
Side length = r

Fourth figure:  $726cm^3$

Explanation:

A. First figure:

1. Formula:

$\text{Volume of a cylinder}=\pi \times radius^2\times length$

2. Data:

radius = 9cm / 2 = 4.5cm

length = 15 cm

3. Substitute in the formula and compute:

$Volume=\pi \times (4.5cm)^2\times (15cm)\approx 954cm^3\approx 954cm^3$

B. Second figure

1. Formula:

$\text{Volume of a leaned cylinder}=\pi \times radius^2\times height$

2. Data:

radius = 12yd

height = 40 yd

3. Substitute and compute:

$Volume=\pi \times (12yd)^2\times (40yd)\approx 1,507.96yd^3\approx 1,508yd^3$

C) Third figure

a) The height is the segment that goes vertically upward from the center of the base to the apex of the pyramid, i.e. q .

The apex is the point where the three leaned edges intersect each other.

b) The side length is the measure of the edge of the base, i.e. r .

When the base of the pyramid is a square the four edges of the base have the same side length.

D) Fourth figure

1. Formula

The volume of a square pyramide is one third the product of the area of the base (B) and the height H).

$Volume=(1/3)B\times H$

2. Data:

height: H = 18cm

side length of the base: 11 cm

3. Calculations

a) Calculate the area of the base.

The base is a square of side length equal to 11 cm:

$\text{Area of the base}=B=(11cm)^2=121cm^2$

b) Volume of the pyramid:

$Volume=(1/3)B\times H=(1/3)\times 121cm^2\times 18cm=726cm^3$

4 0

3 years ago

Read 2 more answers

Currently 1 United States dollar equals 19.25 Mexican pesos. If you exchanged 725 Mexican pesos for US dollars, what amount woul

Irina18 [472]

Answer:

The value of 725 Mexican pesos is equals to 37.66 US dollars

Step-by-step explanation:

Given as :

The value of 1 US dollar equals to 19.25 Mexican pesos

The total amount of Mexican pesos = 725

Now,

∵ 19.25 Mexican pesos equals to 1 US dollars

∴ 725 Mexican pesos equals to $\frac{725}{19.25}$ = 37.66 US dollars

Hence The value of 725 Mexican pesos is equals to 37.66 US dollars Answer

5 0

3 years ago

Select all explanations that prove triangle ABC is congruent to triangle ABC

ycow [4]

Answer:

Translate ABC to the right and reflect over a horizontal line

Step-by-step explanation:

ABC =ABC so you flip and it the same triangle

5 0

3 years ago

What is the difference between 4/5- 1/2 *

alexira [117]

Answer:

0.3

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

Will mark brainliest

TEA [102]

Answer:

The width is 2.

Step-by-step explanation:

The equation is 2 x 3 x ? = 12.

It is 2 long

It is 3 in height

2 x 3 = 6

6 x 2 = 12

so 2 is the width.

5 0

2 years ago