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3 years ago

Can someone tell me the answer step by step about the surface area please I really need help

Mathematics

1 answer:

solmaris [256]3 years ago

5 0

What you have to do is find the sume of all of the areas of the rectangles in this rectangular prism.

Lets find the front and back first.

9in * 14in = 126 in^2
9in * 14in = 126 in^2
= 252 in^2

Now for the top and bottom.

3in * 14in = 42 in^2
3in * 14in = 42 in^2
= 84 in^2

And now for the left and right
9in * 3in = 27 in^2
9in * 3in = 27 in^2
= 54 in^2

Finally we can add them all together!
252 in^2 + 84 in^2 + 54 in^2= 390 in squared.

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Genes are sections of DNA that code for a particular trait. Genes are?

Black_prince [1.1K]

Answer:

Genes are DNA transferred to off spring by parents

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2 years ago

Mr zuro finds the mean height of all 14 students in his class to be 69.0 inches. Just as Mr Zuro finishes explaining how to get

ycow [4]

Answer:

69.1

Step-by-step explanation:

Mean height of 14 students = 69.0 inches

Mean = sum of data/number of data

69 = sum of data/14

sum of data = 966

FOR NEW MEAN:

Height of additional student = 70.5

Mean = sum of data/ number of data

Mean = 966+70.5/14+1

Mean = 1036.5/15

Mean = 69.1

Therefore, the mean height of the 15 students in the class is 69.1

4 0

4 years ago

Which word problem matches the problem? 2 3 x 7 A) Mark has 7 gallons of milk. Ernesto drinks 2 3 of a gallon. How much milk is

kakasveta [241]

Answer:

Out of given word problem , (B) word problem matches the given problem.

B) Mark drinks $\frac{2}{3}$ of a gallon of milk every week. How much does he drink in 7 weeks? written as,

$x=\frac{2}{3}\times 7$

Step-by-step explanation:

Given problem $\frac{2}{3} \times 7$

We are given four options and we have to chose the correct one.

We will convert each given statement into mathematical problem.

Consider,

A)Mark has 7 gallons of milk. Ernesto drinks $\frac{2}{3}$ of a gallon. How much milk is left?

Mathematically represented as,

Let left milk be x then ,

$x=7-\frac{2}{3}$

B)Mark drinks $\frac{2}{3}$ of a gallon of milk every week. How much does he drink in 7 weeks?

Mathematically represented as,

Let milk drink by Mark in 7 weeks be x gallons then ,

$x=\frac{2}{3}\times 7$

C) Mark has $\frac{2}{3}$ of a gallon of milk. Ernesto has 7 gallons of milk. How much do they have together?

Mathematically represented as,

Let they together they drink x gallon milk, then

$x=\frac{2}{3}+ 7$

D) Mark has $\frac{2}{3}$ of a gallon of milk to divide among 7 family members. How much milk does each person get?

Mathematically represented as,

Let each person gets x gallon milk, then

$x=\frac{2}{3} \div 7$

Thus, out of given word problem , (B) word problem matches the given problem

4 0

4 years ago

Read 2 more answers

In ΔSTU, the measure of ∠U=90°, TU = 6.6 feet, and US = 2.3 feet. Find the measure of ∠S to the nearest tenth of a degree.

zimovet [89]

Answer:

70.8°

Step-by-step explanation:

The sides and angles are related in a right triangle such that ...

Tan = Opposite/Adjacent

tan(S) = UT/US = 6.6/2.3

The inverse tangent function is used to find the angle from its value:

∠S = arctan(6.6/23)

∠S ≈ 70.8°

8 0

3 years ago

Read 2 more answers

What’s the value of point a on the x axis

pav-90 [236]

The value of point a on the x axis is anywhere that’s from left to right from the origin (0,0) There should normally be indications on where the graph is.

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3 years ago