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yKpoI14uk [10]
3 years ago
13

21/5 is the additive inverse ofa)-4.2b)-5/21c)-4.5d)5/21​

Mathematics
1 answer:
Alex Ar [27]3 years ago
6 0

Answer:

It’s B but I feel it should have been -21/5

Step-by-step explanation:

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A smoke jumper jumps from a plane that is 1700 ft above the ground. The function y = -16t2 + 1700 gives the jumper's height y in
lakkis [162]

Answer: (A) 6.6 sec (B) 6.89 sec

<u>Step-by-step explanation:</u>

    y    = -16t² + 1700

 1000 = -16t² + 1700

 <u>-1700</u>     <u>         -1700  </u>

  -700 = -16t²

 <u> ÷-16  </u>   <u>÷-16 </u>

 43.75 = t²

√43.75 = √t²

   6.6 = t

***********************************

    y    = -16t² + 1700

  940 = -16t² + 1700

 <u>-1700</u>     <u>         -1700  </u>

  -760 = -16t²

 <u> ÷-16  </u>   <u>÷-16 </u>

  47.5 = t²

√47.5 = √t²

  6.89 = t

4 0
3 years ago
What is 30x4/100+59-29
Verdich [7]
Your answer is 31.2 hope that helps
7 0
3 years ago
Read 2 more answers
Lisa descended 120 feet into a cave. She then climbed up 56 feet. If her starting point was 38 feet below sea level at the mouth
levacccp [35]

Answer:

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5 0
3 years ago
Find the sum <br> 2 2/3 + 1 3/5=
Schach [20]
2 2/3 + 1 3/5
= 2 10/15 + 1 9/15
= 3 19/15
= 4 4/15

answer is 4 4/15 (4 and 4/15)

7 0
3 years ago
POS
meriva

Answer:

0.08 = 8%

2.3= 230%

0.34= 34%

1.05= 105%

0.7= 70%

0.049= 4.9%

7 0
3 years ago
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