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zhenek [66]
3 years ago
7

Find the value c that completes the square for x^2+9x+c

Mathematics
2 answers:
ehidna [41]3 years ago
5 0

Answer:

20.25

Step-by-step explanation:

Romashka-Z-Leto [24]3 years ago
3 0

Answer:

20.25

Step-by-step explanation:

c = (9/2)²

c = 81/4

c = 20.25

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The question requires stating the Null and Alternative hypothesis for the scenario described :

Answer:

H0 : μ = 24

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Step-by-step explanation:

The claim or hypothesis to be tested in a statistical problem or analysis is the alternative hypothesis. This is usually the opposite of the Null hypothesis which is the usually the initial truth until there is significant evidence provided using statistical test to prove otherwise.

The null hypothesis, H0 in the scenario above is :

H0 : μ = 24 ( average battery life is 24 hours)

The alternative hypothesis is the claim, that is. The mean battery life not up to 24 hours ;

H1 : μ < 24

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3 years ago
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Answer:

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Step-by-step explanation

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2. 0= (x + 5)

    -5         -5

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(-5,0)

6 0
3 years ago
Y=2x-5 -3x - 4y=-2
Whitepunk [10]

Answer:

y=-x/5 =3/5. that is how it is.

8 0
3 years ago
Please help math^^ o
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Answer:

x-6

Step-by-step explanation:

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A fork costs £8.95 . Jay buys seven forks . How much does he spend?​
tensa zangetsu [6.8K]

Answer:

£62.65

Step-by-step explanation:

Multiply by seven

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Read 2 more answers
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