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Oksi-84 [34.3K]
3 years ago
10

Maura spent 1 1/2 hours on science homework. This was 2/3 of the total time she spent on homework. How much time did she spend o

n homework?
Mathematics
1 answer:
Rudik [331]3 years ago
8 0
It is about 2.25 hours


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Please I really need help on this matter question
Katarina [22]
The answer should be 1. Keep in mind that all cubic curves will always have at least 1 real zero. The embedded image is a graph of y=(x+8)³+9


The second answer should be y=xx^{4}-6xx^{3}+6xx^{2}-6x+5 (the last answer choice), as seen by the second image. 



6 0
3 years ago
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The numbers are all 3, I think
natali 33 [55]

Answer:

27 cubic units

Step-by-step explanation:

Volume = length • width • height

3 • 3 • 3 = 27 (Break it down by solving 3 • 3 = 9. Then 9 • 3 = 27)

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2 years ago
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How are the volumes of cylinders, cones, and spheres related?
STatiana [176]

Answer:

The formula for the volume of a cylinder is pi*r^2*h. ... The formula for the volume of a cone is 1/3*pi*r^2*h. Finally, we looked at spheres, like a basketball and the planets. The formula for the volume of a sphere is 4/3*pi*r^3.

So basically, they have alike formulas

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3 years ago
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If aa skateboard ramp is 15 meters long and it extends 12 meters from the base of the starting point. How high is the ramp?
guapka [62]

The height of the ramp is 9 meter

<u>Solution:</u>

It is given that a skateboard ramp is 15 meters long and it extends 12 meters from the base of the starting point.

If we look at the sum, closely we understand that the ramp is a right angled triangle.

Which has a base length of 12 metres and a hypotenuse of 15 metres.

We need to find its height.

To do so we can use the Pythagoras theorem

Pythagorean theorem, states that the square of the length of the hypotenuse is equal to the sum of squares of the lengths of other two sides of the right-angled triangle.

By above definition, we get

\text {Hypotenuse}^{2}=\text {height}^{2}+\text { base }^{2}

Since we already know the lengths of the hypotenuse and base we can substitute them in the formula and solve for the height.

Let height of the ramp be denoted by ‘h’

\begin{array}{l}{15^{2}=12^{2}+h^{2}} \\\\ {225=144+h^{2}} \\\\ {225-144=h^{2}} \\\\ {81=h^{2}} \\\\ {h=\sqrt{81}} \\\\ {h=9}\end{array}

Therefore, the height of the ramp is 9 meter

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3 years ago
Hurry please <br> :)))<br> I NEED HELP
denpristay [2]

Answer:

\huge\frac{ \sqrt{6} }{ \sqrt{5} }  =  \frac{ \sqrt{30} }{5}

<h2>√30/5 is the right answer.</h2>

5 0
2 years ago
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