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Masteriza [31]
3 years ago
6

Please I really need help I will mark you as brainliest!

Mathematics
1 answer:
inna [77]3 years ago
4 0

Answer:

∠ XYZ ≈ 72.9°

Step-by-step explanation:

Using the tangent ratio in the right triangle

tanXYZ = \frac{opposite}{adjacent} = \frac{XZ}{XY} = \frac{13}{4} , thus

XYZ = tan^{-1} (\frac{13}{4} ) ≈ 72.9°  to 1 dec. place )

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Jamie put 8 squares together to make a rectangle. There are 2 rows of squares. Each row has 4 squares. How many pairs of sides t
Ludmilka [50]
10 pairs of sides (see the picture attached)

3 0
4 years ago
A pilot has just started on the glide path for landing at an airport with a runway of length 9000 feet. The angles of depression
ki77a [65]

Answer:

a. See attachments

B. 163630.2ft

C. 147056.70ft

D. 49205.4ft

Step-by-step explanation:

Check attachments for details

Angle a.. Angle of dep to beginning of runway

Angle b... Angle of del to end of runway

AD... Altitude of plane

DB..... Ground distance before touch down

AC... Air distance travelled until touch down on the near end of runway

5 0
4 years ago
What do 89/90 equal but not as a decimal or a percent as a fraction HELP ME
sergeinik [125]

Answer:

it equals 89/90

Step-by-step explanation:

the gcf of 89, 90 is 1, so the fraction can not be simplified. The answer is 89/90.

3 0
3 years ago
A sample of n = 4 scores has SS = 48. What is the estimated standard error for this sample? Group of answer choices
mylen [45]

Answer:

2

Step-by-step explanation:

We have

n = 4 scores

SS = 48

For this question, we are required to find the estimated standard error

To get this, we first solve for the variance

S² = SS/n-1

= 48/4-1

= 48/3

= 16

Then S² = 16

S = √16

S = 4

Then the estimated standard error is given by:

S/√n

= 4/√4

= 4/2

= 2.

The estimated standard error is 2.

4 0
3 years ago
Again i will give brainllest to the 1st one who solves this!!!<br> 4+4=x solve for x
igor_vitrenko [27]

Answer:

x=8

Step-by-step explanation:

4+4=x

4+4=8

x=8

6 0
3 years ago
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