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NikAS [45]
3 years ago
9

For what value of x is x2-36=5x

Mathematics
1 answer:
Furkat [3]3 years ago
7 0

Answer:

20.5

Step-by-step explanation:

20.5*2=41

41-36=5

5

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Becca has saved 25% of the money that she needs to buy a new tennis racket. If she has saved $21 jow much money does the tennis
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Let x be the entire portion of the money Becca needs to save to buy a new tennis racket.

So, 0.25x=$21

x=$21/0.25
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Thus, the total amount she needs to save is $84. Now, we'll deduct 25 from 84 to get the 75 percent or the remaining amount she has to save.

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The answer is $63.
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Tropical forests are being lost at the rate of 5 million hectares per year. how many hectares per day is that? how many hectares
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The lcm of 24,39,150 and 60 is <br><br><br>​
AysviL [449]

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120

Step-by-step explanation:

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Consider the following hypothesis test: H 0: 20 H a: &lt; 20 A sample of 60 provided a sample mean of 19.5. The population stand
viva [34]

Answer:

We reject the null hypothesis and accept the alternate hypothesis. Thus, it be concluded that the population mean is less than 20.          

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 60

Sample mean, \bar{x} = 19.5

Sample size, n = 60

Alpha, α = 0.05

Population standard deviation, σ = 1.8

First, we design the null and the alternate hypothesis

H_{0}: \mu = 20\\H_A: \mu < 20

We use One-tailed z test to perform this hypothesis.

Formula:

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Since,  

z_{stat} < z_{critical}

We reject the null hypothesis and accept the alternate hypothesis. Thus, it be concluded that the population mean is less than 20.

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