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Radda [10]
3 years ago
14

Math experts. Can somebody help please.

Mathematics
1 answer:
eimsori [14]3 years ago
3 0
The surface area is 20.38 and the volume is 4.84

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3ab + 4a<br> 2a<br> 3b<br> 6b - 5ab<br> --
natka813 [3]

Is this a Question???????

(If this is important then sorry for my answer)

3 0
3 years ago
Jim is investing in the stock market. Jim is hoping to earn $2,000 in interest in order to take a trip to Mexico. Stock A earns
Vanyuwa [196]

Given:

Total amount for investment = $32000

Rate of interest for Stock A = 4%

Rate of interest for Stock B = 7%

Jim is hoping to earn $2,000 in interest.

To find:

The amount of investments in Stock A and Stock B.

Step-by-step explanation:

Let amount of investments in Stock A = $x

Amount of investments in Stock B = $y

Total amount for investment = $32000

x+y=32000        ...(i)

Rate of interests in Stock A and Stock B are 4% and 7%. Total interests is $2000.

0.04x+0.07y=2000           ...(ii)

From (i) and (ii), we get

0.04x+0.07(32000-x)=2000

0.04x+2240-0.07x=2000

-0.03x=2000-2240

-0.03x=-240

Divide both sides by -0.03.

x=\dfrac{-240}{-0.03}

x=8000

Put x=8000 in (i).

8000+y=32000  

y=32000-8000  

y=24000  

Therefore, the amount of investments in Stock A and Stock B are $8000 and $24000 respectively.

8 0
3 years ago
A government health official is interested in whether there has been a statistically significant decrease in teen smoking rates.
Nostrana [21]

Answer: B

Step-by-step explanation:

The p-value is greater than the significance level (0.09 > 0.05), so we "fail to reject" H0.

The p-value and significance level are provided from the questions .

General rule of P value :  When a P value is less than or equal to the significance level, you reject the null hypothesis.

7 0
3 years ago
How do you do this please help me
aleksandr82 [10.1K]
Use PEMDAS

first 36-4 = 32
7^2 = 49
(32/16) - 49 is your answer -47
7 0
3 years ago
In the middle school debate club, 30% of the members are in sixth grade. If there are 12 graders in the club, how many total mem
Slav-nsk [51]
The answer is D because you just multiply the percent times 40 to get 12.
6 0
3 years ago
Read 2 more answers
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