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Grace [21]
2 years ago
9

Pls help evaluate the expression when x=5: 3x-5

Mathematics
2 answers:
NARA [144]2 years ago
7 0
Answer:
10
Step by step:
3(5)-5
15-5=10
cestrela7 [59]2 years ago
5 0

Answer:

10

Step-by-step explanation:

3(5)-5 = 10.

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Solve the equation for the indicated variable.<br>1. y= 3/8 (x+4) for x​
madam [21]

Answer:

x=8y/3-4

Step-by-step explanation:

What we have to do to solve for X into re arrange the equation so that X is by itself on one side of the equation.  To start we will divide both sides by 3/8 to move it away from the X side and we get

8y/3=x+4 then we will subtract both sides by 4 to get x all by itself

8y/3-4=x

I hope this helps and please don't hesitate to ask if there is anything still unclear!

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3 years ago
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A toy company produces two kites whose shapes are geometrically similar. Find the length of the missing side of the smaller kite
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M=30/22,5=1,33
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3 years ago
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FromTheMoon [43]
Sorry i just need points, hope you get ur answer
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2 years ago
The angle of elevation of a tower, 45 m high from a ball on the ground 52 degree (a) how far is the ball from the foot of the to
blsea [12.9K]

The distance of the ball from the foot of the tower is : 35.18m

The ball would be moved 57.2m away from the foot of the tower for the Angle of elevation to be halved.

<h3>What is angle of elevation?</h3>

Angle of elevation is the angle formed between the horizontal and the  line of view from the vertical.

Analysis:

The height of the tower and the distance of the ball from the foot of the tower form a right angle triangle.

so we use trigonometry.

a) let distance of the ball from foot of tower be x.

  so that, tan 52 = 45/x

  x = 45/tan52

  x = 45/1.279 = 35.18m

b) let the distance of the ball in the new position from the foot of the tower be y.

if the angle of elevation is halved, then new angle is 52/2 = 26°

 tan 26 = 45/y

y = 45/tan26 = 45/0.487 = 92.4m

distance moved from old position to new position = 92.4 - 35.18 = 57.2m

In conclusion, the distance of the ball from the foot of the tower and the distance the ball should move to make its elevation 26° are 35.18m and 57.2m respectively.

Learn more about angle of elevation: brainly.com/question/88158

#SPJ1

4 0
2 years ago
A?<br> B?<br> C?<br> D? <br> Who ever is right gets brainlest &lt;3
Sindrei [870]

Answer:

4 n 4 √ 3 n

Step-by-step explanation:

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2 years ago
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