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NISA [10]
3 years ago
13

What is the perimeter of the shape? 40 feet 43 feet 51 feet 67 feet

Mathematics
2 answers:
Vaselesa [24]3 years ago
7 0

Answer:

201

Step-by-step explanation:

40+43+51+67=201

madreJ [45]3 years ago
5 0

Answer:

its 40

Step-by-step explanation:

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An electric pole is 10m high if it's shadow is 10×√3 in length find the elevation ofthe sum
lianna [129]
First, Look at the attached picture as a reference.

Now, using Pythagoras theorem, 

AC^2=AB^2+BC^2 \\\\AC=\sqrt{AB^2+BC^2 }\\\\AC=\sqrt{10^2+(10\sqrt3)^2}\\\\ AC = \sqrt{100+300}\\\\AC=\sqrt{400}\\\\AC=20~in.

Now, lets find the elevation of the sun.

<span> </span>tan\theta =  \frac{AB}{BC} \\\\ tan\theta =  \frac{10}{10\sqrt3} \\\\ \theta = tan^{-1} \left(\frac{10}{10\sqrt3}\right) \\\\ \boxed{\theta = 30  \°}

∴ The elevation of the sun is 30°

 

6 0
3 years ago
11. Find the percent change: 18 oz to 12 oz
vodomira [7]

Answer:

Its 6 oz

Step-by-step explanation:

You have to subtract 18 - 12 to get your answer.

5 0
3 years ago
I need help showing work please help
Zigmanuir [339]

Answer:

It’s just subtraction

Step-by-step explanation:

When a square is in the middle its 90 so just subtract the other number by 90

3 0
3 years ago
Read 2 more answers
riya obtained the following score (out of 100) in a vocabulary test: 80,85,90,71,60,100. what is her mean score​
Greeley [361]

Answer:

85

Step-by-step explanation:

3 0
3 years ago
Find an equivalent expression for the missing side length of the rectangle. Then find the missing side when x=3.Round to the nea
SashulF [63]

Answer:

Base of rectangle = 23.25 units (Approx.)

Step-by-step explanation:

Given:

Diagonal of rectangle (Hypotenuse) = 8x

Height of rectangle (Perpendicular) = 2x

Find:

Base of rectangle

Computation:

Base = √Hypotenuse² - Perpendicular²

Base of rectangle = √(8x)² - (2x)²

Base of rectangle = √64x² - 4x²

Base of rectangle = √60x²

Base of rectangle = 7.75x units (Approx.)

If x = 3

Base of rectangle = 7.75x

Base of rectangle = 7.75(3)

Base of rectangle = 23.25 units (Approx.)

5 0
3 years ago
Read 2 more answers
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