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kramer
3 years ago
15

Alison has some shapes. She has 14 red cubes and 10 red spheres. She has 12 black cubes and 8 black spheres. Alison is going to

select 2 of these shapes. Of these 2 shapes only 1 can be red only 1 can be black only 1 can be a cube and only 1 can be a sphere. In how many ways can Alison select the 2 shapes?
Mathematics
1 answer:
KengaRu [80]3 years ago
6 0

Answer:

2

Step-by-step explanation:

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In the given figure, show that angle a+angle b + angle c+angle d=360​
djverab [1.8K]

Answer:

∠a + ∠b + ∠c + ∠d = 360°

Step-by-step explanation:

∠a + ∠c = 180°

∠b + ∠d = 180°

Therefore, 180 + 180 = 360°

8 0
3 years ago
Which expression is equivalent? 8(3x − 6) A) 24x + 48 B) 24x − 48 C) −24x + 48 D) −24x − 48
Irina18 [472]
If this is distributive property, you would change 8(3x-6) to 8(3)x-8(6) and another way to say that is 24x-48 so it would be b and for d there are two negative signs which would equal positive so b and d
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3 years ago
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goldfiish [28.3K]
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3 years ago
Factor the expression 49b²-36​
Travka [436]

Answer:

49b² - 36

Step-by-step explanation:

Find the factors of 49 & 36:

49 = 1, 7, 49

36 = 1, 2, 6, 18, 36

As you can tell, there are no common factors (1 does not count), therefore, the expression given is already in most factored form.

49b² - 36 is your answer.

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7 0
3 years ago
The areas of two similar triangles are 75m2 and 300m2. The length of one of the sides of the second triangles is 9m. What is the
Ymorist [56]

Answer:

4.5 m

Step-by-step explanation:

The area of two similar triangles are 75 m2 and 300 m2. This gives you the scale factor of the triangles:

\dfrac{A_{small}}{A_{large}}=k^2\Rightarrow k^2 =\dfrac{75}{300}=\dfrac{3}{12}=\dfrac{1}{4}\Rightarrow k=\dfrac{1}{2}.

Then you can find the length of the corresponding side:

\dfrac{side_{small}}{side_{large}}=k\Rightarrow =\dfrac{side_{small}}{9}=\dfrac{1}{2},\ side_{small}=\dfrac{9}{2}=4.5\ m.

4 0
3 years ago
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