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3 years ago

Find the surface area of the pyramid. The side lengths of the base are equal. The surface area is square centimeters.

Mathematics

1 answer:

Mariana [72]3 years ago

3 0

Answer:

576.67

Step-by-step explanation:

A=a2+2aa2

4+h2=122+2·12·122

4+172≈576.66615

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Hi! Please without looking it up I am doing my writing and speaking test for Spanish and I'm trying to figure out what is "Then"

inysia [295]

Answer:

The sentance you but then would be than which would be Hay más mesas en la cocina que en mi habitación but the word then would be entonces and example sentance is entonces iré allí which is then i will go over there

and than is que, an example sentace en lugar de que yo vaya allí which is rather than me going over there

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Which of the following expressions are equivalent to \left(9\dfrac{7}{8} + 2\dfrac{4}{5}\right)-\dfrac{1}{2}(9 87 +2 54 )− 21

lora16 [44]

Answer:

$12\dfrac{7}{40}$

Step-by-step explanation:

The given expression is

$\left(9\dfrac{7}{8} + 2\dfrac{4}{5}\right)-\dfrac{1}{2}$

We need to find the simplified form of the given expression.

It can be rewritten as

$\left(9+\dfrac{7}{8} + 2+\dfrac{4}{5}\right)-\dfrac{1}{2}$

Combine integers and fractions separately.

$(9+2)+(\dfrac{7}{8}+\dfrac{4}{5}-\dfrac{1}{2})$

Taking LCM we get

$11+\dfrac{35+32-20}{40}$

$11+\dfrac{47}{40}$

In can be written as

$11+\dfrac{40+7}{40}$

$11+1+\dfrac{7}{40}$

$12+\dfrac{7}{40}$

$12\dfrac{7}{40}$

Therefore, the expression $12\dfrac{7}{40}$ is equivalent to the given expression.

5 0

3 years ago

Inage of triangle after 90 degree rotation

Bad White [126]

I would say a cause they have the same curves

5 0

2 years ago

The length of one side of a regular pentagon is 18.3 cm. What is the perimeter of this pentagon?

Ket [755]

91.5 is the perimeter. It's just 5a.

3 0

3 years ago

Round to the given place value hundreds and tens 547 , 609 and 990

myrzilka [38]

The first number will be 500
the second number will be 600
and the last number will be 990

8 0

3 years ago

Read 2 more answers