MATHEMATICS HIGH SCHOOL

A square pyramid is shown:A square pyramid is shown. The sides of the square base are labeled 0.5 foot. The height of one of the triangular sides is labeled 9 feet.

What is the surface area of the pyramid?

2.5 square feet
5.25 square feet
9.25 square feet
1.5 square feet

Answers

Answer 1

Answer:

The surface area of the square pyramid is 9.25 square feet.

What is square pyramid?

"A three-dimensional geometric shape that has a square base and four triangular sides that are joined at a vertex."

What is the surface area of square pyramid?

"It is the sum of all the surfaces of the pyramid."

For given question,

We have been given a square pyramid.

The sides of the square base are labeled 0.5 foot.

So, the area of the square base would be,

$\Rightarrow A_1=(0.5)^2\n\n\Rightarrow A_1=0.25$

The height of one of the triangular sides is labeled 9 feet.

And the base of the triangular side is the side of square.

So, the length of the triangular base is 0.5 ft.

So, the area of the four triangular bases would be,

$\Rightarrow A_2=4* ((1)/(2)* 9* 0.5 )\n\n\Rightarrow A_2=4* 2.25\n\n\Rightarrow A_2=9$

The surface area of the square pyramid is the sum of the square base and four triangular bases.

So, the surface area of the square pyramid would be,

$A=A_1+A_2\n\nA=0.25+9\n\nA=9.25$ square feet

Therefore, the surface area of the square pyramid is 9.25 square feet.

Learn more about the surface area of the square pyramid here:

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Answer 2

Answer: area of triangles:
0.5x9=4.5
4.5x2=9 (i divided 4 (the amount of triangles) by 2 instead of dividing 4.5 by 2)

area of square:
0.5x0.5=0.25

surface area of whole thing:
9+0.25=9.25

so the answer is 9.25

hope this helps :)

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Two students were asked to use estimation strategies to find a reasonable solution to this question: Darrell has $1,990 saved and wants to buy a motorcycle. He earns $10 per hour and he works for 39 hours. Estimate how much money, Darrell has left after buying a $2,200 motorcycle. From the choices below, select the student with a more reasonable solution.

Answers

Answer:

1990+(10h)-2200

1990+(10x39)-2200

Step-by-step explanation:

he already has 1990

He earns $10 per hour

he works for 39 hours

$2,200 needed for a motorcycle

1990+(10h)-2200

1990+(10x39)-2200

Find the length of the side of a square with area 225 square units

Answers

A = $l^(2)$ ;
Then, 225 = $l^(2)$ ;
$l^{} = √(225) = 15 unit;$

What is the number in the following sequence 101,112,131,415,161

Answers

The sequence is not geometric or arithmetic because there is no common difference or common ratio between each term.

101,112,131,415,161,718... Is basically formed using the 2 digit numbers 10,11,12,13,14,15,16,17,18...(placement of commas is different there) So the next two numbers will be formed using 19,20 & 21
Thus next three numbers are 718 & 192 & 021

Please help me on this will give you brainliest

Answers

Answer:

876

Step-by-step explanation:

since i helped can i have brainlist please :D

Write 2350 million in standrard form

Answers

Step-by-step explanation:

2350 million

= 2350 000 000 = 2, 350, 000, 000.

Which of the following best describes the algebraic expression x/3 - 15?A. A number divided by three minus fifteen.
B. Three divided by a number minus fifteen.
C. Three divided by a number less than fifteen.
D. A number divided by three less than fifteen.

Answers

Answer:

Step-by-step explanation:

X can be referred to as a number here because it can be anything.

and X is being divided by three there.

also according to the

B brackets

O order or power

D division

M multiplication

A addition

S subtraction

BODMAS rule division would be done before you subtract the 15

I hope you do well in the future!!! Believe in yourself!

Final answer:

The best description for the algebraic expression x/3 - 15 is 'A number divided by three minus fifteen'. This description accurately represents the mathematical operations indicated in the expression.

Explanation:

The algebraic expression x/3 - 15 best described by: 'A number divided by three minus fifteen.' This is a result of the mathematical symbols represented in the expression. The expression x/3 is read as 'a numberdivided by three,' and the '- 15' translates to 'minus fifteen.' Therefore, the entire expression, x/3 - 15, describes a scenario where a number is divided by three, and then fifteen is subtracted from the result.