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ycow [4]
2 years ago
13

Demi has 21 baseball cards and 13 football cards.

Mathematics
1 answer:
djyliett [7]2 years ago
6 0

Answer:

89

Step-by-step explanation:

21+13+19+36=89

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Tri-Star Industries employs electrical, plumbing, and air conditioning technicians. Their home office is made up of three square
Molodets [167]

Answer:

6084 \text{ft}^2.

Step-by-step explanation:

Please find the attachment.

We have been given that  the home-office of Tri-star industries is made up of three square buildings, one for each department, with a triangular atrium in the middle. The area of the Plumbing building is 5,184 \text{ft}^2 and the area of the A/C building is 900 \text{ft}^2.

We know that area of square is square of its side length. Since all building are squares, so to find the area of electrical building, we will use Pythagoras theorem.

a^2+b^2=c^2

We can see from our attachment that side length of electrical building is hypotenuse (c) of the right triangle.

Upon substituting our given information in Pythagoras theorem, we will get:

5184+900=c^2

6084=c^2

Therefore, the area of electrical building is 6084 square feet.

3 0
3 years ago
What is the area of this figure?<br><br><br> 28 yd²<br><br> 40 yd²<br><br> 52 yd²<br><br> 64 yd²
Lubov Fominskaja [6]

Answer:  A= s^2 <- for a square

A= 1/2*b*h <- for a triangle

A= 4^2= 16

A= 1/2*8*6 (The whole height is 8 yd)

A= 1/2*48

A= 24

24+16= 40 yd^2

"B" is the answer.

I hope this helps!

Step-by-step explanation: A= s^2 <- for a square

A= 1/2*b*h <- for a triangle

A= 4^2= 16

A= 1/2*8*6 (The whole height is 8 yd)

A= 1/2*48

A= 24

24+16= 40 yd^2

"B" is the answer.

I hope this helps!

6 0
2 years ago
A shorter style of cup is stacked tall. The graph displays the height of the stack in centimeters for different numbers of cups.
Strike441 [17]

Answer:

0.5

Step-by-step explanation:

We are looking for how much height is gained per cup added.

Height per cup added can be calculated by finding the slope of the line that runs through the two given points on the graph, (3, 5.5) and (8, 8).

Formula for slope =

Let,

3 0
3 years ago
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6 cups of flour ___.
kati45 [8]
3 cups of sugar for 6 cups of flour!
3 0
2 years ago
Read 2 more answers
Find the sum of 2x 2 + 3x - 4, 8 - 3x, and -5x 2 + 2
Sloan [31]
-3x²-2 .................
4 0
3 years ago
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