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2 years ago

Write a addition equation or a subtraction your choice to section your diagram

Mathematics

1 answer:

SpyIntel [72]2 years ago

8 0

Answer:

7 - 2 = 5

Step-by-step explanation:

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Fun Fact: The hagfish is the only animal that has a skull but no spine.

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6 times some number equals 30

den301095 [7]

Bro the answer to that is 5

4 0

3 years ago

Read 2 more answers

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

2 years ago

The area of a rug is : 42 1/4 square feet. The rug is 6 1/2feet wide. What is the length of the rug?

MissTica

Answer:

Square footage is calculated by multiplying width by length. So if a room is 9 foot wide by 12 foot long, 9 x 12 = 108 square feet.

Step-by-step explanation:

This should help!

6 0

2 years ago

30 PTS!! URGENT JUST 3 QUESTIONS PLEASE

Harrizon [31]

Answer:

1. 7

2. B

3. C

Step-by-step explanation:

hope its right

4 0

2 years ago

Lillian is going to invest in an account paying an interest rate of 5.7% compounded continuously. How much would Lillian need to

Tems11 [23]

Answer: $5156

Step-by-step explanation:

Given

The rate of interest is 5.7%

time t=7 years

Amount after 7 years, $A=\$7600$

for compound interest, the Amount is given by

$\Rightarrow A=P(1+\frac{r}{100})^T$

Put values

$\Rightarrow 7600=P(1+0.057)^7\\\\\Rightarrow P=\dfrac{7600}{(1.057)^7}=5,155.71\\\\\Rightarrow P\approx \$5156$

5 0

2 years ago