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3 years ago

8

A student who Is 4 feet tall stands beside a tree. The tree has a shadow that is 10 feet long at the same

2 answers:

tino4ka555 [31]3 years ago

7 0

I’m going to attach a photo because that’s the only way I can explain it.
First, draw out the image that they are describing with triangles to help solve the problem. Then you will see a relationship between the sides. The length of the shadows from the person to the tree’s multiplies by 5. So we can multiply the persons height by 5 as well since they are similar.

Len [333]3 years ago

3 0

Answer:

chicken feet

Step-by-step explanation:

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Please I need help solve for x

oksano4ka [1.4K]

Answer:

If you see 5 18 b on there than first you need to convert A to B to C, but if it is still not congruent than, keep checking. Also the answer should be 8x 5 im sorry if it's wrong just got up i got it right on my test

3 0

3 years ago

Given a mean of 61.2 and a standard deviation of 21.4 what is the z score of the value 90 rounded to the nearest tenth?

Nitella [24]

Answer:

The z-score of 90 is 1.35

Step-by-step explanation:

The z-score is calculated using the formula:

$z = \frac{x - \mu}{ \sigma}$

From the question, it was given that the mean is

$\mu = 61.2$

and the standard deviation is

$\sigma = 21.4$

and x=90.

We substitute the given values to obtain:

$z = \frac{90 - 61.2}{21.4}$

$z = \frac{28.8}{21.4} = 1.35$

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3 years ago

Help meeeeeeeeeeeeee

aliya0001 [1]

Answer: Second Option

$f (x)=\frac{2}{x}$ and $g(x)=\frac{2}{x}$

Step-by-step explanation:

If we have a function f(x) and its inverse function $f ^ {- 1} (x) = g (x)$

Then by definition:

$(fog) (x) = (gof) (x) = x$

Notice that the inverse of the function $f (x)=\frac{2}{x}$ is $f ^ {- 1}(x)=\frac{2}{x}$

then:

If $f (x)=\frac{2}{x}$ and $g(x)=\frac{2}{x}$

Then:

$(fog) (x) =\frac{2}{\frac{2}{x}}$

$(fog) (x) =\frac{2x}{2}$

$(fog) (x) =x$

The answer is the second option

7 0

3 years ago

Find the equation of the exponential function represented by the table below:

kondor19780726 [428]

Answer:

y = 0.2(0.5)^x

Step-by-step explanation:

Exponential function are of the form

y = ab^x

----------------------

To find "a" plug in x = 0 y = 0.2

0.2 = a(0.2)^0

0.2 = a

-------------------------

To find "b" plug in another point and a = 0.2

using x = 2, b = 0.05

0.05 = 0.2b^2

Divide both sides by 0.20

.25 = b^2

Take the square root of both sides

0.5 = b

-----------------------------

With a = 0.2 and b = 0.5 the equation becomes

y = 0.2(0.5)^x

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3 years ago

Find the perimeter and area

Wittaler [7]

Answer:

perimeter: 50

area: 78

Step-by-step explanation:

i tried my best to understand

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3 years ago