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bazaltina [42]
3 years ago
6

Please help me with 9,11,,13. Show work and explain please

Mathematics
2 answers:
Scorpion4ik [409]3 years ago
4 0
14 = x - 9...this is an open sentence...because we do not know if this is a true or a false statement...we do not know what the variable is.

4 - 15 = 22 - 33
-11 = -11.....this is true

-7(5-9) = 19 - 3(-3)
-7(-4) = 19 + 9
28 = 28 ....this is true


Alla [95]3 years ago
3 0
Add 9 to 14 . And then the answer will equal x
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LuckyWell [14K]

Answer:

perimeter of circle=2πr

16=2πr

r=16/2π=8/πcm

now.

area of circle=πr²=π(8/π)²=π×64/π²=64/(22/7)=64×7/22=20.36cm²

4 0
3 years ago
The Pyraminx is a Rubik's cube-type toy in the shape of a tetrahedron. The Pyraminx shown below has edges 15\,\text{cm}15cm long
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Answer:

8.727

Step-by-step explanation:

Since the below edge, d = 15 cm, and the height, h = 12.2 cm, we will use the Pythagorean  theorem to find the distance r.

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3 years ago
Olivia is making bead bracelets for her friends. She can make 3 bracelets in 15 minutes.Now find the constant of proportionality
harkovskaia [24]

Answer:

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3 0
3 years ago
What is the slope of the line?<br> m=
telo118 [61]

Answer:

m = 1/4

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slope = rise / run

rise = 1 (red arrow)

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3 0
2 years ago
A cylinder has a radius of 8 meters and a height of 4 meters. .
Novay_Z [31]
<h2><u>Solution</u> :-</h2>

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4 0
4 years ago
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