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posledela
3 years ago
12

Evaluate the expression for c = –1.4.

Mathematics
2 answers:
Zina [86]3 years ago
7 0

Answer:

-41.16

Step-by-step explanation:

c = -1.4

-21c²

-21(-1.4)²

-21(1.96)

-41.16

Contact [7]3 years ago
5 0

Answer:

the answer for that equation is 58.8

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6 0
3 years ago
Pls help me solve this
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Answer:

Step-by-step explanation:

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5 0
2 years ago
Which expression is equivalent to -5(k + 3)?
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2 years ago
A company is developing a new high-performance wax for cross country ski racing. In order to justify the price marketing wants,
andrew11 [14]

Answer:

A)Yes they should market the wax, because it melts before 55 seconds

C) Null hypothesis: mean <55 vs. Alternative hypothesis :mean =55

D) the value is 51.33 seconds

Step-by-step explanation:

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Assuming Significant =0.05 thus applying this level will give you 51.28-51.38

if specifically, the mean time to finish their standard test course should be less than 55 seconds for a former Olympic champion, then the null hypothesis is correct

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Alternative hypothesis :mean =55

7 0
2 years ago
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victus00 [196]
I did my best to explain it on graph paper. I hope this helps! Look at the attached picture.

4 0
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