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Setler79 [48]
3 years ago
11

A regular triangular pyramid is 2 feet tall, 2 feet wide and 2 feet long. What is the pyramid’s surface area?

Mathematics
1 answer:
harina [27]3 years ago
7 0

Answer:

12

Step-by-step explanation:

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Which of the following measurements is NOT equal to 8 cups?
Natalija [7]
The answer is 1 gallon .
1 gallon:16 cups
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3 years ago
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Juan is three times as old as Gabe and Gabe is six years older than Catherine. If the sum of their ages is 149, how old is each
cestrela7 [59]

Answer:

Juan = 93 years.

Gabe = 31 years.

Catherine = 25 years.

Step-by-step explanation:

Let the age of Juan = J

Let the age of Gabe = G

Let the age of Catherine = C

<em>Translating the word problem into an algebraic equation, we have;</em>

J = 3G ..........equation 1

G = C + 6 ........equation 2

J + G + C = 149 ........equation 3

<em>We would solve the linear equations by using the substitution method; </em>

<em>Substituting equation 2 into equation 1;</em>

J = 3(C + 6)

J = 3C + 18 ........equation 4

<em>Substituting equation 2 and equation 4 into equation 3;</em>

(3C + 18) + (C + 6) + C = 149

<em>Simplifying the equation, we have;</em>

5C + 24 = 149

5C = 149 - 24

5C = 125

C = \frac {125}{5}

C = 25 years.

To find G; from equation 2

G = C + 6

Substituting the value of "C" into equation 2, we have;

G = 25 + 6

G = 31 years.

To find J; from equation 1

J = 3G

Substituting the value of "G" into equation 1, we have;

J = 3 * 31

J = 93 years.

<em>Therefore, Juan is 93 years old, Gabe is 31 years old and Catherine is 25 years old. </em>

4 0
3 years ago
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Answer:

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Step-by-step explanation:

4 0
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Simplify 8 over negative 4 divided by negative 3 over 9. 6 −6 12 −12
skelet666 [1.2K]

Answer:

6

Step-by-step explanation:

Given

\frac{8}{-4} /  \frac{-3}{9}

Required

Solve

\frac{8}{-4} /  \frac{-3}{9}

We start by converting the division sign to multiplication

\frac{8}{-4} /  \frac{-3}{9} =\frac{8}{-4} *  \frac{-9}{3}

Then, we divide -9 by 3

\frac{8}{-4} /  \frac{-3}{9}=\frac{8}{-4} *  -3

Then, we divide 8 by -4

\frac{8}{-4} /  \frac{-3}{9}=-2 *  -3

Multiply -2 and -3 to give final result

\frac{8}{-4} /  \frac{-3}{9} = 6

Hence, \frac{8}{-4} /  \frac{-3}{9} is equivalent to 6

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Please help, explain if you know???????
slamgirl [31]

Answer:

4.5 units²

Step-by-step explanation:

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