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alekssr [168]
3 years ago
11

How to solve this problem

Mathematics
1 answer:
RSB [31]3 years ago
5 0
Holy @$#% THAT LOOKS HARD! Sorry, I can't help I don't know that math yet. 
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What is the value of x when the Richter scale rating is 7.9 round your answer to the nearest
Oksi-84 [34.3K]
If no base is stated, then assume base 10
log(x)=log_{10}(x)
rememer
a=log_b(c) translates to b^a=c


so
r=log(x) or
r=log_{10}(x) translates to 10^r=x

so when r=7.9, what is x
10^r=x
10^{7.9}=x
79432823.472428=x
round to nearest ???
thousanth? 79432823.472=x
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4 0
3 years ago
The Jayden family eats at a restaurant that is having a 15% discount promotion. Their meal costs $78.96, and and they leave a 20
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Multiply the cost by 1.2 (120%) to add 20% tip, and then multiply by 0.85 (85%) to take off 15%

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7 0
3 years ago
The manufacturer of a refrigerator system for beer kegs produces refrigerators that are supposed to maintain a true mean tempera
Bond [772]

Answer:

There is sufficient evidence to support the claim that the mean temperature is different from 42 deg

Step-by-step explanation:

From the given information, we are being told that:

The manufacturer of a refrigerator system for beer kegs produces refrigerators that are supposed to maintain a true mean temperature, μ, of 42°F

i. e  mean  μ = 42

The owner of the brewery does not agree with the refrigerator manufacturer, and claims he can prove that the true mean temperature is incorrect.

Assuming that a hypothesis test of the claim has been conducted and that the conclusion is to reject the null hypothesis, state the conclusion in nontechnical terms.

From above;

The null and the alternative hypothesis can be computed as:

\mathbf{H_o : \mu  = 42} \\ \\ \mathbf {H_1 : \mu \neq 42}

Here , the hypothesis test of the claim is the alternative hypothesis.

The conclusion based on the decision rule:  is to reject the null hypothesis

∴

The conclusion in non technical terms is that :

There is sufficient evidence to support the claim that the mean temperature is different from 42 deg

4 0
3 years ago
Solve the equation.<br><br> -1 2/7 ÷ 1 13/14 =
sergeinik [125]

Answer:

-4/13

Step-by-step explanation:

just using your calculator and you can get the answer.

5 0
2 years ago
Read 2 more answers
WILL MARK BRAINIEST<br> what type of gridline is labeled with a number?
ss7ja [257]

Answer:

I looked it up on Google and it said major and minor I don't know if this helps so I'm sorry if it doesn't

8 0
3 years ago
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