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2 years ago

11

How many times can 42 go into 400?

2 answers:

ki77a [65]2 years ago

5 0

400 divided by 42 = 9.523809

vivado [14]2 years ago

3 0

42 can go into 400 9.5 times (:

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This net can be folded to make a square pyramid. what is the surface area of the pyramid

givi [52]

Answer:

$85in^2$

Step-by-step explanation:

to find the surface area we need to find the followng areas:

area of the square

area of a triangle and multiply it by 4 (because there are 4 triangles)

And once we have those areas, we add them to find the surface area.

Area of the square:

the formula to find the area of a square is:

$a_{square}=l^2$

where $l$ is the length of the side: $l=5in$

thus the area of the square is:

$a_{square}=(5in)^2$

$a_{square}=25in^2$

Area of the triangles:

the are of 1 triangle is given by

$a_{triangle} =\frac{b*h}{2}$

where $b$ is the base of the triangle: $b=5in$ (the base of the triangle is the side of the square)

and $h$ is the height of the triangle: $h=6in$

thus, the area of 1 triangle is:

$a_{triangle} =\frac{(5in)*(6in)}{2}$

$a_{triangle} =\frac{30in^2}{2}$

$a_{triangle} =15in^2$

the area of the 4 triangles is (we multiply by 4):

$a_{4-triangles}=4(15in^2)$

$a_{4-triangles}=60in^2$

finally we add the area of the square and the area of the 4 triangles to find the total surface area:

$Surface=25in^2+60in^2$

$Surface=85in^2$

8 0

1 year ago

Select the correct answer. What are the intercepts of y = 4x − 2?

ValentinkaMS [17]

x-intercept(s): (1/2, 0) or (0.5, 0)

y-intercept(s): (0, −2)

8 0

2 years ago

Read 2 more answers

The martins car traveled 468 miles on 18 gallons of gas. Their car averaged how many miles per gallon.

hichkok12 [17]

Answer: 26

Step-by-step explanation: you divide 468 and 18 and you get 26.

3 0

2 years ago

if i got an 80% on part 1 on my quiz and a 100% on part 2 of my quiz what would be my score in total in percent?

docker41 [41]

Answer: 125%

Step-by-step explanation:

6 0

2 years ago

A right triangle is shown below.

Norma-Jean [14]

<h2>Answer: <em>x = 7.5</em></h2>

<em />

Step-by-step explanation:

Use the Pythagorean Theorem ( $a^{2}+b^{2} =c^{2}$ )

The longest side is <em>c = the hypotenuse</em>, and <em>a and b = the other sides</em> of the triangle.

a = 4 First: $4^{2}+x^{2}=8.5^{2}$

b = x Second: $16+x^{2}=72.25$

c = 8.5 Third: $x^{2}=56.25$

Fourth: $x=\sqrt{56.25}$

Fifth: x = 7.5

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2 years ago