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kap26 [50]
2 years ago
15

Solve for the volume of the following figure.

Mathematics
1 answer:
Olenka [21]2 years ago
5 0

Answer:

96\pi \: or \: 301.59

rounded to the nearest hundredth

Step-by-step explanation:

use the pythagorean theorem to find the height of the cone

{a}^{2}  +  {6}^{2}  =  {10}^{2}

you get a = 8

the formula for the volume of a cone is

\pi \:{r}^{2}  \frac{h}{3}

plug in 6 for the radius and 8 for the height. then solve

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A researcher took a random sample of 100 students from a large university. She computed a 95% confidence interval to estimate th
katen-ka-za [31]

Answer:

Part (A): The correct option is true.

Part (B): The null and alternative hypothesis should be:

H_o: \mu =0 ; H_a:\mu \neq0

Step-by-step explanation:

Consider the provided information.

Part (A)

A random sample of 100 students from a large university.

Increasing the sample size decreases the confidence intervals, as it increases the standard error.

If the researcher increase the sample size to 150 which is greater than 100 that will decrease the confidence intervals or the researcher could produce a narrower confidence interval.

Hence, the correct option is true.

Part (B)

The researcher wants to identify that whether there is any significant difference between the measurement of the blood pressure.

Therefore, the null and alternative hypothesis should be:

H_o: \mu =0 ; H_a:\mu \neq0

7 0
2 years ago
I need help on #5 please!
Alex Ar [27]
2x^2 + 2y^2 + 2xy I think
6 0
3 years ago
What is the difference between hyperbola and parabola??​
g100num [7]

Answer:

1)A parabola is defined as a set of points in a plane which are equidistant from a straight line or directrix and focus.

The hyperbola can be defined as the difference of distances between a set of points, which are present in a plane to two fixed points is a positive constant.

2)A parabola has single focus and directrix

A hyperbola has two foci and two directrices

3)Eccentricity, e = 1(parabola)

Eccentricity, e>1(hyperbola)

4)The two arms present in a parabola should be parallel to each other

The arms present in hyperbola are not parallel to each other

5)It has no asymptotes(parabola)

It has two asymptotes(hyperbola)

5 0
3 years ago
The ratio of the radii of two circles is 2:3. The diameter of the smaller circle is 15 mm. What is the length of the diameter of
mixer [17]
The answer is 11.25 mm.

A diameter of a circle is twice of its radius: d = 2r    ⇒ r = d/2

small circle                                       large circle
radius: r1                                           radius: r2 = ?
diameter: d1 = 15 mm
⇒ r1 = d1/2 = 15/2 mm

Since t<span>he ratio of the radii of two circles is 2:3, we have:
r1 : r2 = 2 : 3
which can also be expressed as:
</span>\frac{r1}{r2}= \frac{2}{3}
<span>
We know that r1 is 7.5, so let's implement it:
</span>\frac{7.5}{r2} = \frac{2}{3}

Let's multiply both sides of the by 3r2:
3r2* \frac{7.5}{r2} =3r2* \frac{2}{3}
⇒ 3 * 7.5 = 2*r2
     22.5 = 2*r2
⇒ r2= \frac{22.5}{2} =11.25 mm

5 0
3 years ago
Read 2 more answers
Jean saw a basic computer for $695.00 and a printer for $95.00. In order to buy the computer, Jean would work each week for four
Snowcat [4.5K]

Answer:

YES

Step-by-step explanation:

$157+$210+$377+$145=$889

$695+$95=$790

Leftover

$889-$790 =$99

he would have $99 leftover

5 0
2 years ago
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