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3 years ago

Can someone help me with this please thank you

Mathematics

1 answer:

o-na [289]3 years ago

8 0

For 19 it is number 2 that does not have x = 20.
for 20 its the last one that the variable does not equal 12.
the answer for 21 is 6.
and the answer for 22 is 72.

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P(A) = 0.44 What are the odds for A?

damaskus [11]

$P(A)=0.44=\frac{44}{100}=\frac{11}{25}\\\\11\ odds\ on\ 25$

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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

Solution:

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

Are these 2 ratios equivalent ratios?

Eva8 [605]

These ratios are equivalent because 7 and 8 can be multiplied by 6 to get 42 and 48.

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Which symbol creates a true sentence when x equals 3?

Marta_Voda [28]

Hi Tysona90!
Let's write it with the X as a 3
8*3-4*3_7(10-3) Now let's solve it 8*3 is 24 and 4*3 is 12 so then we do 24-12 which is 12. So now we have 12_7(10-3) so let's solve the other half which is 10-3 is 7 times 7 (since parenthesis can also mean multiplication) which is 49 so we now have 12_49 which means the answer is A.
Hope this helps!

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4 years ago

What is the radius of the circle with equation x2 + y2 – 8x + 12y – 5 = 0?

kramer

Answer:

radius: $\sqrt{52}$

Step-by-step explanation:

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