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shepuryov [24]
3 years ago
14

If n is an even integer between 1 and 1989, what is the probability that n^2 is divisible by 8

Mathematics
1 answer:
pantera1 [17]3 years ago
5 0

Answer:

0.249874

Step-by-step explanation:

After every 4 digits, n squared is divisible by 8 so we have 1989/4= 497 numbers divisible by 4 after squaring

probability n=497/1989= 0.249874

Probability n=0.249874

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A cylindrical jar's lid has a radius of 4 inches. If the volume is 351.68 in , approximately what is the height of the jar?
balu736 [363]

Answer:

7 inches

Step-by-step explanation:

The volume of a cylinder is calculated using

V = \pi {r}^{2}h

where r =4 inches is the radius and V=351.68 is the volume.

To find the height of the jar, we substitute these values and solve for h.

351.68 = 3.14 \times  {4}^{2}  \times h

351.68 = 50.24h

Divide both sides by 50.24 to get:

h =  \frac{351.68}{50.24}

h=7 inches

Therefore the height of the jar is 7 inches

7 0
3 years ago
Will mark brainliest!
katovenus [111]

Answer:

4.817+9.099+17.008=30.924

484.603-48.198=436.405

Estimation 5+9+17=31

485-48=437

Just round each decimal to the nearest whole number and add or subtract

6 0
3 years ago
Read 2 more answers
Without solving, explain how you can tell whether the solution to 0.5x = 10 is less than 1 or greater than 1 ​
NemiM [27]

Greater than 1 because left side is a fraction less than 1 and right side is a number greater than 1.

The left side being a fraction less than 1 could only mean that you have to multiply a number greater than 1 to the other side. And since the other side is a number greater already than 1 then multiplying the left side to the right side must result in a number greater than 1.

6 0
4 years ago
A university has 39,630 students in a random sample of 240 students 16 speak three or more Languages predict the number of stude
tekilochka [14]
2642 students speak 3 or more languages

4 0
3 years ago
What are the restrictions of the domain of the function F(x) = 1/x^2-9
Sonbull [250]
f(x)=\frac{1}{x^2-9}

The denominator can't be equal to 0.
x^2-9 \not= 0 \\
x^2 \not= 9 \\
x \not= -3 \ \land \ x \not= 3

The domain is all numbers except -3 and 3.
x \in \mathbb{R} - \{-3, 3 \}
6 0
3 years ago
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