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Oksi-84 [34.3K]
3 years ago
14

Help please. I dont know how to do this :((

Mathematics
1 answer:
madam [21]3 years ago
4 0

Answer:

You need the distance of all four sides so that is:

2 * (5y +1) + 2 * (2y -3) which equals

10y + 2 + 4y -6 and that equals

14y -4

Step-by-step explanation:

You might be interested in
Millie has a bag of 100 cubes she also has a bag of 70 cubes how many trains of 10<br> can she make
Romashka-Z-Leto [24]
she can make 17 trains of ten
4 0
3 years ago
A cylindrical tank has a diameter of 2.5 feet and a height of 4.8 feet. what is the lateral surface area of the tank to the near
blsea [12.9K]

Answer:

This is approximately 37.7 ft^{2} to the nearest hundredth

Step-by-step explanation:

First of all, we will need to understand that to find the lateral surface area of the cylinder, we simply need to multiply the circumference of the circular base by the height of the cylinder.

In this case, the circumference of the circular base can be obtained by the formula

2 \pi r

Hence we will have the circumference as 2 \times \pi \times \frac{2.5}{2}=7.85 feet

Tp get the Lateral area, we will simply have to multiply this value (7.85 feet )

by the height (4.8 feet)

7.85 X 4.8 =37.68 feet ^{2}

This is approximately 37.7 ft^{2} to the nearest hundredth

8 0
3 years ago
What is the value of b?
docker41 [41]
Do do this problem, you need to use the Law of Cosines!

You are trying to find length b, so

b^2 = a^2 + c^2 - 2ab cos B
b^2 = 22^2 + 28^2 - 2(22)(28) cos 34
b^2 = 484 + 784 - 1232 cos 34
b^2 = 1268 - 1232 cos 34
b^2 = 246.6257
b = 15.7 yards

Hope this helps!
3 0
4 years ago
Read 2 more answers
Scott and Nikki each have a full 1.5-gallon container of liquid laundry detergent. The lid on Scott's container can hold 3 fluid
Tom [10]

Given:

Scott and Nikki each have a full 1.5-gallon container of liquid laundry detergent.

Lid on Scott's container can hold 3 fluid ounces of detergent.

Lid on Nikki's container can hold 4 fluid ounces of detergent.

To find:

The number of lids full of detergent Scott have more than Nikki.

Solution:

We know that,

1 gallon = 128 fluid ounces

1.5 gallon = 192 fluid ounces

Lid on Scott's container can hold 3 fluid ounces of detergent. So, number of lids full of detergent Scott have is

\dfrac{192}{3}=64

Lid on Nikki's container can hold 4 fluid ounces of detergent.  So, number of lids full of detergent Nikki have is

\dfrac{192}{4}=48

Difference between number of lids is

64-48=16

Therefore, Scott have 16 lids more than Nikki. Hence, the correct option is B.

5 0
4 years ago
Read 2 more answers
The mass of the sphere is 800 lbs. Find the density of the sphere to the nearest tenth.
AURORKA [14]

Answer:

7.1 lbs / ft^3

Step-by-step explanation:

In this question, we are asked to calculate the density of the sphere in the diagram.

Firstly, to calculate the density , we apply a mathematical formula.

Mathematically, density = mass/volume

We have the mass already from the question but we will need to calculate what the volume is.

Mathematically, the volume of a sphere = 4/3 * pi * r^3

From the diagram, we can see that the radius of the sphere is 3 ft. Plugging this into the equation of the volume of a sphere, we have;

4/3 * 22/7 * 3^3

= 4/3 * 22/7 * 27

= 113.143 ft^3

Now, we substitute the volume into the density equation;

Recall, density = mass/volume

From the question, our mass is 800 lbs and from calculations, volume is 113.143 ft^3

Density = 800 lbs/ 113.143 ft^3 = 7.07 lbs/ ft^3 which is approximately 7.1 lbs/ ft^3

5 0
3 years ago
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