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alukav5142 [94]
3 years ago
15

Marcus is making a square pyramid out of cart board. He drew a diagram of a square pyramid as shown below. Based on Marcus’ diag

ram, how many square inches of cardboard
make up this square pyramid?

Mathematics
1 answer:
NikAS [45]3 years ago
5 0

Can someone answer my question
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For the function y=-2x^2+4x+1, what are the coordinates of the vertex? Is it a maximum or minimum point? Hint: use the vertex/ax
masya89 [10]

Step-by-step explanation:

y = -2x² + 4x + 1

Complete the square.

y = -2 (x² − 2x) + 1

y = -2 (x² − 2x + 1) + 1 − (-2)(1)

y = -2 (x − 1)² + 3

The vertex is (1, 3).  The leading coefficient is negative, so the vertex is a maximum.

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3 years ago
The sum of two numbers is 87. The difference of the same to numbers is negative 111. Find the numbers.
anyanavicka [17]

Answer:

99 and - 12

Step-by-step explanation:

let x and y be the 2 numbers, then

x + y = 87 → (1)

x - y = - 111 → (2)

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x = - 12

Substitute x = - 12 into (1)

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y = 99

The 2 numbers are 99 and - 12

5 0
3 years ago
combine like terms to simplify each expression. 1: 3/4z(3)+4-1/4z(3). 2: 3.4m+2.4m. 3: 4.2n+5-3.2n. 4: q(5)+q(5)+q(5). 5: 3x+1/4
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Explanation and steps to the expressions are marked in order in the images below.

1. Answer is 3z/2 + 4

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4. Answer is 15q

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3 years ago
Please help. What is the height of the box in inches?
Lunna [17]

Answer:

h = 12 inches

Step-by-step explanation:

The volume is  given by

V = Bh  where B is the area of the base and h is the height

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1080 = 90h

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1080/90 = 90h/90

12 = h

4 0
4 years ago
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