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2 years ago

NEED HELP ASAPPP

Mathematics

2 answers:

Serjik [45]2 years ago

6 0

The answers is a because the radius must be 5

OLEGan [10]2 years ago

5 0

Answer:

its C

Step-by-step explanation:

Center: (−5,2)

Radius: 5

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Serga [27]

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1 year ago

Bessie has an annual salary of $51,360. Each month she has a car payment of $210 and a student loan of$50. If she applies for a

Svetach [21]

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2 years ago

find the angle between the vectors. (first find the exact expression and then approximate to the nearest degree. ) a=[1,2,-2]. B

SashulF [63]

Answer:

$\theta = cos^{-1} (\frac{10}{\sqrt{9} \sqrt{25}})=cos^{-1} (\frac{10}{15}) = cos^{-1} (\frac{2}{3}) = 48.190$

Since the angle between the two vectors is not 180 or 0 degrees we can conclude that are not parallel

And the anfle is approximately $\theta \approx 48$

Step-by-step explanation:

For this case first we need to calculate the dot product of the vectors, and after this if the dot product is not equal to 0 we can calculate the angle between the two vectors in order to see if there are parallel or not.

a=[1,2,-2], b=[4,0,-3,]

The dot product on this case is:

$a b= (1)*(4) + (2)*(0)+ (-2)*(-3)=10$

Since the dot product is not equal to zero then the two vectors are not orthogonal.

Now we can calculate the magnitude of each vector like this:

$|a|= \sqrt{(1)^2 +(2)^2 +(-2)^2}=\sqrt{9} =3$

$|b| =\sqrt{(4)^2 +(0)^2 +(-3)^2}=\sqrt{25}= 5$

And finally we can calculate the angle between the vectors like this:

$cos \theta = \frac{ab}{|a| |b|}$

And the angle is given by:

$\theta = cos^{-1} (\frac{ab}{|a| |b|})$

If we replace we got:

$\theta = cos^{-1} (\frac{10}{\sqrt{9} \sqrt{25}})=cos^{-1} (\frac{10}{15}) = cos^{-1} (\frac{2}{3}) = 48.190$

Since the angle between the two vectors is not 180 or 0 degrees we can conclude that are not parallel

And the anfle is approximately $\theta \approx 48$

3 0

2 years ago

Jh is the altitude to the hypotenuse gi what is the measure of

iren2701 [21]

Answer:

We are told of a 90 degree angle. plus we are told that GH and HI are similar.

Hence: Angle I is = 45 degree or Option C

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1 year ago

Two cylinders are similar with a scale factor of 1:4. Which shows the ratio of the volumes of the cylinders?

Vladimir [108]

E. 3/12 is equivalent to 1/4, which is the ratio of the cylinders.

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2 years ago

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