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zaharov [31]
2 years ago
15

Helpppppppppp plzzzzzz

Mathematics
2 answers:
stiks02 [169]2 years ago
6 0

Answer:

its D

Step-by-step explanation:

shepuryov [24]2 years ago
4 0

Answer:

A

Step-by-step explanation:

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The yearbook club had a meeting. The meeting had 21 people, which is one-third of the club. How many people are in the club?
VladimirAG [237]

Answer:

63 because if 1/3 of the club is gone then we need to multiply 21 times 21 to find the total. Which is 63.

3 0
3 years ago
Select all number combinations that COULD make a triangle
tester [92]

Answer:

2 cm, 9 cm, 10 cm

Step-by-step explanation:

To know if a combination is a triangle all you have to do is see if the combinations add up to 180

(2)(9)(10)=180 therefore it is a triangle.

All the other angles do not add up to 180 so they can't be triangles!!

(4)(10)(3) =120

(5)(6)(11) =330

(4)(5)(7) =140

4 0
2 years ago
-4a+7a= ?<br> i need ur help<br> please
Ilya [14]

Answer:

-4a + 7a = + 3a

But you don't actually need a pkus sign 3a is fine too. You are basically sum - 4 and 7. Let me know if you still confused.

6 0
2 years ago
Suppose a triangle has sides 3, 4, and 6. Which of the following must be true? A: The triangle in question is not a right triang
Talja [164]

Answer:

A: The triangle in question is not a right triangle.

Step-by-step explanation:

If the triangle is a right triangle, then the Pythagorean theorem would hold

a^2 + b^2 = c^2

3^2 + 4^2 = 6^2

9+16 = 36

25 = 36

This is not true so this is not a right triangle

7 0
3 years ago
Read 2 more answers
If the length of side a is 16 centimeters, the length of side b is 10 centimeters, and m = 42°, what is the measure of ? Round y
kupik [55]

Answer:Substitute the given values in the Law of Sines and find that the measure is 24.72°

5 0
3 years ago
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