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il63 [147K]
2 years ago
11

Find the cosine of ∠I.

Mathematics
1 answer:
denis-greek [22]2 years ago
7 0

Answer:

\sqrt{\frac{3}{5} } .

Step-by-step explanation:

1) cos(I)=IH/IG;

2) \ IG=\sqrt{IH^2+GH^2} =10;

3) \ cos(I)=\frac{2\sqrt{15}}{10}=\frac{\sqrt{15}}{5}=\sqrt{\frac{3}{5}}.

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KonstantinChe [14]
C. 94 m^2 is the surface area
6 0
3 years ago
Please help im being timed <br><br> Inverse of f(x)=15x+4
rusak2 [61]

Answer:

f^{-1}(x) =

Step-by-step explanation:

let y = f(x), then rearrange making x the subject

y = \frac{1}{5}x + 4 ( subtract 4 from both sides )

y - 4 = \frac{1}{5}x ( multiply both sides by 5 to clear the fraction )

5y - 20 = x

Change y back into terms of x with x = f^{-1} (x) , then

f^{-1} (x) = 5x - 20

3 0
3 years ago
What transformation has taken place on the coordinate grid pleaseee help my final! I'll give rate and heart etc​
sertanlavr [38]

Answer:

Translation across the coordinate plane

Step-by-step explanation:

Here, we want to get the kind of transformation that has occurred to the shape

from the given coordinate diagram, we can see that A shifted from (2,3) to (-3,6)

B shifted from (2,-2) to (-3,1)

and C shifted from (-1,-4) to (-6,-1)

If we look at these, we can observe that there is a change in the x-axis coordinate in each by (-1-(-6) or 2-(-3) = 5 units

and there is a change in the y-axis value by (3-6) = -3 units

so the transformation here can be represented generally as;

(x -5, y+ 3)

With this, we can see that what we have represented is simply a translation across the coordinate plane

5 0
3 years ago
Explain how you know the value of the digits in the number 58
sergiy2304 [10]
There are no decimal points, and there are 2 numbers. Therefore, the first number will be a "10s" number, and the second will be a "1s" number.
4 0
3 years ago
Read 2 more answers
Which choice shows the following fractions with a common denominator? 3/4 and 5/6​
Roman55 [17]

Answer:

9/12 and 10/12

Step-by-step explanation:

The LCD is the smallest number divisible by both 4 and 6, and that is 12.

Thus, 3/4 and 5/6 are equivalent to 9/12 and 10/12 .

Next time, kindly share the answer choices.  Thank you.

4 0
3 years ago
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