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irina1246 [14]
3 years ago
7

PLEASE HELP! I WILL GIVE BRAINLYEST TO WHOEVER ANSWERS FIRST! PLEASE PLEASE BE QUICK! thank you! and please include explanation

cause i need to learn to do it for my other problems! THANK YOU!!!!
Find the surface area of the prism.

Mathematics
1 answer:
katrin2010 [14]3 years ago
4 0

Answer:

A=920 ft.

Step-by-step explanation:

Using the formulas

A=2AB+(a+b+c)h

AB=s(s﹣a)(s﹣b)(s﹣c)

s=a+b+c

2

Solving for A

A=ah+bh+ch+1

2﹣a4+2(ab)2+2(ac)2﹣b4+2(bc)2﹣c4=8·20+17·20+15·20+1

2·﹣84+2·(8·17)2+2·(8·15)2﹣174+2·(17·15)2﹣154=920

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Dose anyone know how to do these problems
zimovet [89]

Answer:

1. 14

2. 20

3. 12

4. -400

5. 6

6. 21

7. 11

8. 16

9. 40

10. 49

11. 12

12. IDK

Step-by-step explanation:

1. 16-2=14

2. 16+4=20

3. 6 X 2 = 12

4. -400/-10 (negative divided by a negative equals a positive) = 40

5. 6 X 6 = 36

6. 16+5=21

7. 23-12=11

8. 4 X 16 = 64

9. 36-16=20, 20 X 2 = 40

10. 400-8=392, 392/8= 49

11. 912-612=300, 300/25 = 12

12. Sorry too confusing.

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3 years ago
What is the product of 379 and 8
Tanya [424]
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7 0
4 years ago
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Another i-ready question! Sorry i am clueless and need a 100% Please help!
Delicious77 [7]

Answer:

3rd

Step-by-step explanation:

4 0
3 years ago
What is the height of the tv and is it square inches or inches ??
fiasKO [112]
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The equation is 25^2-20^2.
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7 0
4 years ago
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Hiya! Here's my question:
Step2247 [10]

wait i got it!

Since 18 kilograms are 18000 grams, you have

18000/30=600

and

800/30=26.6

So, with 18 kilograms of salt the baker can make exactly 600 batches with no leftovers, while with 800 grams of salt the baker can make 26 batches, with some leftovers.

In fact, 26 batches require

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Step-by-step explanation:

5 0
3 years ago
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