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Monica [59]
3 years ago
7

Which is not a statistical question?

Mathematics
2 answers:
maxonik [38]3 years ago
7 0

Answer:b

Step-by-step explanation:

spayn [35]3 years ago
4 0

Answer:

'How many computers does my family own?'

Step-by-step explanation:

How many computers, because it only gives one answer. if it was something like 'how many computers do each of my classmates own' or something that gave multiple answers then that would be a statistical question.

Goodluck with your schoolwork/homework!

---------------------------------------------------------------

Appologies in advance for any errors or bad explanations.

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N - 89 > 171. what inequality below true. 1. n=82. 2. n=105. 3. n=268. 4. n=300. 5. n=312​
Maru [420]

Answer:

1. Assume the contrary, namely that √2 + √3 + √5 = r, where r is a rational number.

Square the equality √2 + √3 = r − √5 to obtain 5 + 2

√6 = r2 + 5 − 2r

√5. It follows

that 2√6 + 2r

√5 is itself rational. Squaring again, we find that 24 + 20r2 + 8r

√30

is rational, and hence √30 is rational, too. Pythagoras’ method for proving that √2 is

irrational can now be applied to show that this is not true. Write √30 = m

n in lowest

terms; then transform this into m2 = 30n2. It follows that m is divisible by 2 and because

2( m

2 )2 = 15n2 it follows that n is divisible by 2 as well. So the fraction was not in lowest

terms, a contradiction. We conclude that the initial assumption was false, and therefore

√2 + √3 + √5 is irrational.

Step-by-step explanation:

7 0
3 years ago
.
ryzh [129]

Answer:

(1 ) Inner curved surface area of the well is  109.9 sq. meters.

(2) The cost of plastering the total curved surface area is  4396.

Step-by-step explanation:

The inner diameter = 3.5 m

Depth of the well =  10 m

Now, Diameter = 2 x Radius

⇒R = D/ 2  = 3.5/2 = 1.75

or, the inner radius of the well = 1.75 m

CURVED SURFACE AREA of cylinder = 2πr h

⇒The inner curved surface area =  2πr h  = 2 ( 3.14) (1.75)(10)

                                                                      = 109 sq. meters

Hence, the inner curved surface area of the well is  109.9 sq. meters.

Now, the cost of plastering the curved area is 40 per sq meters

So, the cost of total plastering total area = 109.9 x(Cost per meter sq.)

                                                                    =  109.9 x (40)

                                                                   =   4396

Hence, the cost of plastering the total curved surface area is  4396.

8 0
4 years ago
A cyclist estimates that he will bike 80 miles this week. He actually bikes 75.5 miles. What is the percent error of the cyclist
vazorg [7]

Answer:

6%

Step-by-step explanation:

Estimated distance = 80 miles

Actual distance covered = 75.5 miles

We need to find the percent error of the cyclist's estimate. Its formula is given by :

\%=\dfrac{|\text{actual value-estimated value}|}{\text{actual value}}\times 100

Put all the values,

\%=\dfrac{80-75.5}{75.5}\times 100\\\\=5.96\%

or

= 6%

So, the percentage error is 6%.

4 0
3 years ago
Read 2 more answers
A sphere has a diameter of 18 inches. What is the volume of this sphere? Use ​ ≈ 3.14 and round your answer to the nearest tenth
trapecia [35]

Answer:

= 3053.6

Answer D is correct

Step-by-step explanation:

v =  \frac{4}{3}  \pi {r}^{3}  \\  =  \frac{4}{3}  \times \pi \times  {9}^{3}  \\  ≈3053.62806

hope this helps

brainliest appreciated

good luck! have a nice day!

3 0
3 years ago
Read 2 more answers
9. Brett has ten distinct T-shirts. He is planning on going on a short weekend trip to visit his brother in college. He has enou
Ipatiy [6.2K]

Answer:

The number of ways are 210.

Step-by-step explanation:

Consider the provided information.

Brett has ten distinct T-shirts. He is planning on going on a short weekend trip to visit his brother in college. He has enough room in his bag to pack four T-shirts.

Since order doesn't matter so we will use combination.

Use the formula for combination ^{n}C_{r}=\frac{n!}{r!(n-r)!}

Substitute n=10 and r=4 in above formula.

^{10}C_{4}=\frac{10!}{4!(10-4)!}

^{10}C_{4}=\frac{10!}{4!6!}

^{10}C_{4}=210

Hence, the number of ways are 210.

4 0
3 years ago
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