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Drupady [299]
3 years ago
9

Helppppp............

Mathematics
2 answers:
lesya692 [45]3 years ago
4 0

Answer:

72 cm

Step-by-step explanation:

for volume is pretty simple. All you have to do is multiply the length width and height of you're shape. Once you do that you get 72cm

Arlecino [84]3 years ago
3 0

Answer:

V=lwh

4x6x3

v=72

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What is the domain of f(x)=(-1)?
Bond [772]

Answer:

All real numbers

Step-by-step explanation: f(x)=-1 means any number we put into the function as x will equal -1. Interval notation (-∝, +∞)

7 0
3 years ago
HELP MEEEEEEEEE<br><br> how many grams are in 562 dg?
Law Incorporation [45]

Answer:  the answer is 56.2 g

Step-by-step explanation:

562 dg * 1 g/10 dg = 56.2 g

hope i helped

-lvr

3 0
3 years ago
A sample of 20 account balances of a credit company showed an average balance of $1,170 and a standard deviation of $125. You wa
Lady_Fox [76]

Answer:

The P-value for this test is P=0.2415.

Step-by-step explanation:

We have to perform an hypothesis testing on the mean of alla account balances.

The claim is that the mean of all account balances is significantly greater than $1,150.

Then, the null and alternative hypothesis are:

H_0: \mu=1150\\\\H_a: \mu>1150

The sample size is n=20, with a sample mean is 110 and standard deviation is 125.

We can calculate the t-statistic as:

t=\dfrac{\bar x-\mu}{s/\sqrt{n}}=\dfrac{1170-1150}{125/\sqrt{20}}=\dfrac{20}{27.95}=0.7156

The degrees of freedom fot this test are:

df=n-1=20-1=19

For this one-tailed test and 19 degrees of freedom, the P-value is:

P-value=P(t>0.7156)=0.2415

8 0
3 years ago
Steve bought 7 boxes of pencils. Each Box contained 9 pencils. He wants to give each of his 6
Anton [14]

Answer:

A

Step-by-step explanation:

7*9=63

63/6= 10 remainder 3

Therefore each friend gets 10 boxes of pencils and Steve gets the leftover 3 boxes of pencils

8 0
3 years ago
If 4 people are selected from a group of 6 married couples, what is the probability that none of them would be married to each o
Ludmilka [50]

Answer:

16/33

Step-by-step explanation:

12C4(total possible outcomes)=495

Since there are 6 married couples there must be 6*[2C2×10C2]=270

must subtracted 15 since when there are 2 couples in a group would have doubled 270-15=255

the no of groupings with no married couples 495-255 =240

probability=no of favourable outcomes /no of possible outcome

probability=240/495= 16/33

6 0
3 years ago
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