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3 years ago

Solve the right triangle below. Round all your answers to the nearest tenth. Measure of angle Z = ______

Mathematics

1 answer:

valentina_108 [34]3 years ago

7 0

Answer:

$Measure \: of \: angle \: z = \boxed{ \tt{ 19.5\degree}}$

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Can someone please help? A ferris wheel is drawn on a coordinate plane so that the first car is located at the point (0,10).

Ugo [173]

Answer:

(10,0)

Step-by-step explanation:

When it comes to rotations by 90 degrees or 270 degrees, you just have to switch the order of x- and y- coordinates. Then find the sign by considering which quadrant will it be. In this case, it is originally on the positive y-axis and now it would be +ve x-axis.

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4 years ago

Find xif 4; 4+2×;4+4× are in Geometric sequences

Ray Of Light [21]

Given:

$4,4+2x,4+4x$ are in geometric sequences.

To find:

The value of x.

Solution:

If a, b, c are in geometric sequences, then

$\dfrac{b}{a}=\dfrac{c}{b}$

$b^2=ac$ ...(i)

It is given that $4,4+2x,4+4x$ are in geometric sequences. By using (i), we get

$(4+2x)^2=(4)(4+4x)$

$4^2+2(4)(2x)+(2x)^2=(4)(4)+4(4x)$

$16+16x+4x^2=16+16x$

$4x^2=16+16x-16-16x$

On further simplification, we get

$4x^2=0$

$x^2=0$

$x=0$

Therefore, the value of x is 0.

7 0

3 years ago

What is 1,200 divided by 3

diamong [38]

1200 ÷ 3 = 400 is the answer

3 0

4 years ago

Read 2 more answers

Which formula is used to calculate the standard deviation of sample data?

Illusion [34]

Answer:

$s=\sqrt{\frac{\sum (x_{i} -\mu)^{2} }{N-1} }$

Step-by-step explanation:

In statistics, the standard deviation is a measure about the amount of variation of a dataset.

The variation is measured through comparison between each data and the mean of the dataset. This way, we could get a numerical information about how far are those values form the mean (which represents the central value).

The formula to find the standard deviation of a sample is

$s=\sqrt{\frac{\sum (x_{i} -\mu)^{2} }{N-1} }$

Where $\mu$ is the sample mean and $N$ is the total number of values there are.

In the formula you can notice the difference between each value ( $x_{i}$ ) and the mean ( $\mu$ ), That's why the standard deviation is commonly use to measure variation.

Therefore, the answer is

$s=\sqrt{\frac{\sum (x_{i} -\mu)^{2} }{N-1} }$

8 0

3 years ago

Write an equation for a line parallel to y= 3x-5 and passes through the point<br> ( 1,6 )

larisa86 [58]

Answer:

y = 3x + 3

Step-by-step explanation:

if parallel, the equation is y = 3x + b

(1, 6) in the equation will find b as 3

so the answer is as above

3 0

4 years ago