3 years ago

Are these correct? Thanks!

Mathematics

1 answer:

vaieri [72.5K]3 years ago

8 0

17. It would be about 155

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Please help! Solve the following:

mihalych1998 [28]

Answer:

n=10.

Step-by-step explanation:

$\frac{45}{n^{2}-3n-4 }$ - $\frac{3}{n-4}$ = $\frac{2}{n+1 }$

$\frac{45}{n^{2}-3n-4 }$ - $\frac{3(n+1)}{(n+1)(n-4)}$ = $\frac{2(n-4)}{(n+1)(n-4) }$

$\frac{45}{n^{2}-3n-4 }$ - $\frac{3n+3}{n^{2} -3x-4}$ = $\frac{2n-8}{n^{2} -3x-4 }$

45-3n-3=2n-8

45-3+8=5n

n=50/5=10

4 0

3 years ago

Find the volume of the oblique cone. Round your answer to the nearest hundredth.

Musya8 [376]

<u>Given</u>:

The radius of the oblique cone is 2 cm.

The height of the oblique cone is 6 cm.

We need to determine the volume of the oblique cone.

<u>Volume of the oblique cone:</u>

The volume of the oblique cone can be determined using the formula,

$V=\frac{1}{3} \pi r^2h$

where r is the radius and h is the height of the cone.

Substituting r = 2 and h = 6 in the above formula, we get

$V=\frac{1}{3} \pi (2)^2(6)$

$V=\frac{1}{3} \pi (4)(6)$

$V=\frac{24}{3} \pi$

$V=8 \pi$

$V=25.13$

Thus, the volume of the oblique cone is 25.13 cm³

Hence, Option A is the correct answer.

6 0

3 years ago

What is 113.09 rounded to the nearest tenth

ycow [4]

113.10
because the 9 is greater than 5

6 0

3 years ago

How fast are you going if you run 12 kilometers in 2 hours

vfiekz [6]

Answer:

3.73 miles per hour

Step-by-step explanation:

12 Kilometers is 7.46 miles.

7.46/2 = 3.73 Miles per hour

6 0

3 years ago

What is the unit rate for A 24-ounce box of cornflakes costs $4.59

Naddik [55]

Answer:

0.19125 or just 0.19

Step-by-step explanation:

$4.59/24= 0.19125

7 0

3 years ago

Read 2 more answers