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castortr0y [4]
3 years ago
11

You spin the spinner once. What is P(not 7)?

Mathematics
1 answer:
Flura [38]3 years ago
5 0

Answer:

12.5%

Step-by-step explanation:

The spinner has 8 equal sections, numbered 1, 2, 3, 4, 5, 6, 7, and 8. The only number greater than 7 is 8. There is 1 number greater than 7.

P(greater than 7)  =  

1

8

Write your answer as a decimal. Then convert your answer to a percentage.

1

8

=  0.125  =  12.5%

P(greater than 7) = 12.5%

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What is the result of rotating the<br>point (x, y) 90 degrees clockwise?​
maxonik [38]

Answer:

It would turn into (x, -y)

3 0
4 years ago
When do you use a placeholder zero in the quotient?
Alex787 [66]
When you're quotient is in the hundredths place or more or when you're dividend or divisor has a placeholder zero as well.
5 0
3 years ago
After the first term in a sequence, the ratio of each term to the preceding term is r. If the first term is a, what is the third
ladessa [460]

Answer:

The third term will be ar²

Step-by-step explanation:

First term is a

Since the ratio of each term to the preceding term is r, then the second term will be ar.

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8 0
3 years ago
a sample from a mummified bull was taken from a certain place. The sample shows that 71% of the carbon-14 still remains. how old
7nadin3 [17]

Answer:

Step-by-step explanation:

Decay of carbon - 14 is exponential in nature . It decays as follows .

N=N_0e^{-\lambda t}  λ is called decay constant .

λ = .693 / T where T is half life .

Half life of carbon-14 is 5700 years

λ = .693 / T

= .693 / 5700

= 12.158 x 10⁻⁵ year⁻¹

N=N_0e^{-\lambda t}

N = .71 N₀

.71 N_0 =N_0e^{-\lambda t}

.71  =e^{-\lambda t}

Taking ln on both sides

ln .71 = - λ t

ln .71 = - 12.158 x 10⁻⁵  t

-0.3425 =  - 12.158 x 10⁻⁵  t

t = .3425 / 12.158 x 10⁻⁵

2817  years .

6 0
3 years ago
Find the measure of x and y
sergey [27]
Y=29

x=21

Remember that a straight angle = 180 degrees. So to solve for y, we get 120-60. 4y+4=120. 4y=116. y=29.

Because the x equation is the angle above the y, we know that they add up to 180 as well. So 3x-3=60. 3x=63 x=21

Have a nice day! :)

5 0
3 years ago
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