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Lorico [155]
3 years ago
9

8. The 1st student flipped a fair coin 7 times

Mathematics
1 answer:
REY [17]3 years ago
4 0
My guess is he gets heads about half the time
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In ΔVWX, \text{m}\angle V = (7x-1)^{\circ}m∠V=(7x−1) ∘ , \text{m}\angle W = (4x+16)^{\circ}m∠W=(4x+16) ∘ , and \text{m}\angle X
Anika [276]

Answer:

m∠X= 22°

Step-by-step explanation:

In ΔVWX:

m∠V=(7x−1) ∘

m∠W=(4x+16) ∘ ,

m∠X=(3x−17) ∘ . Find M∠X.

Step 1

We find the variable x

The sum of angles in a triangle is 180°

Hence,

ΔVWX = m∠V + m∠W +m∠X

180° = (7x - 1)° + (4x + 16)° + (3x - 17)°

180° = 7x - 1 + 4x + 16 + 3x - 17

180° = 7x + 4x + 3x - 1 + 16 - 17

180° = 14x -2

Collect like terms

180° + 2 = 14x

182° = 14x

x = 182°/14

x = 13°

Step 2

We find m∠X

m∠X = (3x−17) ∘

x = 13

m∠X = (3 × 13 − 17)°

m∠X = (39 − 17)°

m∠X = 22°

5 0
2 years ago
3=1 entonces cuanto es 1+1+1
natka813 [3]

Step-by-step explanation:

si 3=1

1+1+1 = 3+3+3

3=9

4 0
2 years ago
If 15 times a number to equal 647
Ainat [17]
I'm assuming, from what you've given me that the question is asking to do this.

15n=647
647 divided by 15 equals 43.13...repeated
Let me know if this is what you are looking for.

3 0
3 years ago
Explain why the function y=1-cosx is an even function
Oksanka [162]

A function is said to even if it returns the same output when given two opposite inputs:

f(x) = f(-x)

In your case, you have

f(x) = 1-\cos(x), \quad f(-x) = 1-\cos(-x)

And since \cos(x) = \cos(-x), the proof is concluded.

8 0
2 years ago
If it takes 7.1 pounds of seed to plant one acre of grass how many acres can be planted with 9.94 pounds of seeds
melamori03 [73]

Answer:

9.94*1/7.1= 1.4 acres

Step-by-step explanation:

3 0
3 years ago
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