The area of the base of a prism is 21 cm squared. The perimeter of the base is 20 cm. The height of the prism is 8 cm. What is the surface are of the prism?.

Answers

Answer 1

Answer: SA=ph+2b is the right formula for this question.
p= perimeter h= height b=base

Since the base area of this prism is 21cm^2 we can multiply by 2.
21*2=42cm^2

And we know the perimeter of the base is 20 and the height is 8 we just multiply.
20*8= 160cm^2

Now we add
160+42= 202cm^2 is the surface area of this prism.

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Find x

Need gelppppppppppp

Answers

Answer:

The Value of x is 10.

Step-by-step explanation:

Consider ABCD is a Parallelogram where

∠BCA = 43°

∠CBA = 98°

∠ACD = (2x+9)

To Find:

x = ?

Solution:

Triangle sum property:

In a Triangle sum of the measures of all the angles of a triangle is 180°.

In ΔABC

$\angle ABC+\angle BCA+\angle CAB=180\n\n98+43+\angle CAB=180\n\therefore m\angle CAB =180-141=39\°$

Now CD || BA .......opposite sides of Parallelogram is parallel

$\angle CAB=\angle ACD$ .........Alternate Angles are equal

Substituting the values we get

$39=2x+19\n2x=20\n\n\therefore x=(20)/(2)=10\n\n\therefore x=10$

The Value of x is 10.

Whats the difference between 5 and a number???

Answers

Lets say that this number is x

Then the difference between 5 and x would be:

5 - x

So that is your answer

$\boxed{\bf{5-x}}$

Dominic and Terrell are planning a weekend backpacking trip.Dominic wants to hike Fox Trail, which is 6 miles long. Terrell wantto take Western Trail, which is 7920 yards. Which trail is longer?How much longer is it in miles and yards? Show your work

Answers

6 miles is longer than 7929 yards and 6 miles is also 10560 yards.
and 7920 yards are 4.5 miles

Its to close to emsate

Two quantities are related, as shown in the table: x y
2 10
4 9
6 8
8 7

Which equation best represents the relationship?
y = 1 over 2 x + 11
y = negative 1 over 2x + 11
y = 2x + 10
y = 2x + 11

Answers

You need to calculate it's slope.
(x₁,y₁) = (2,10) and (x₂,y₂) = (4,9)
Now,(y₂-y₁) = m(x₂-x₁)
(9-10) = m(4-2)
2m = -1
m = -1/2

Now, take any one point for calculation of b in equation;
10 = -1/2(2) + b
b = 10 + 1
b = 11

So, Equation of the line would be: y = -1/2x + 11

In short, Your Answer would be Option B

Hope this helps!

Answer:

In short, Your Answer would be Option B

Step-by-step explanation:

Explain how you distribute a factor to terms in parenthesis

Answers

Let's say the question is 2(x+3),

You multiply the number outside the brackets by EVERYTHING inside the brackets so,

2(x+3)
=2x+6 *Notice how 2(x)=2x and 2(3)=6.*

Jesse is putting a ribbon around a square frame he uses 24 inches of ribbon how long is each side of the frame

Answers

Each side of the frame is 6 inches long

Each is 6 inches long✌️

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