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IceJOKER [234]
3 years ago
11

Select the equivalent expression.

Mathematics
1 answer:
Fittoniya [83]3 years ago
8 0

Answer:

B

Step-by-step explanation:

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Of 70 tosses of a dime, 55 results are heads. Find the empirical probability of tossing heads with this coin. ______ Is this a f
Aleksandr-060686 [28]
The empirical, or experimental, probability of an event is the number of times the event occurred over the number of times the experiment was conducted.  In this case it would be 55/70 = 11/14, as there were 55 heads flipped out of a total of 70 coin flips.
Mathematically speaking, no, this is not a fair coin.  To be fair, both events would have to have the same chance of happening.  Since the probability of heads was 55/70, that leaves 15/70 for tails.  The chances are not equal, so not fair.
8 0
3 years ago
Use the equation to complete an algebraic proof that proves the answer is x = 7/6. Write your proof in your journal and upload y
Ivahew [28]

Answer:

x=7/6

Step-by-step explanation:

subtract the 4x from both sides of the equation

(2x+6)-4x=4x-3-4x

find common denominator

(2x+6)/5+(5(-4)x)/5=4x-3-4x

then combine fractions

(2x+6+5(-4)x)/5=4x-3-4x

then multiply the 5&4

(2x+6-20x)/5= 4x3-4x

combine terms

(-18x+6)/5= -3

then multiply everything by 5

-18x+6= -15

subtract the 6 from both sides

-18x= -21

divide -21 by -18

(-21)/(-18)=x

find greatest common multiple (3) and solve

x = 7/6

4 0
3 years ago
Solve the equation below <br> 9 = x/18 <br> x=<br> What is X?
dedylja [7]
X=162, if you multiply 18*9 which is the way to get the answer you get 162
7 0
2 years ago
What is the surface area of a sphere with radius 2
Gelneren [198K]

Answer:

A

Step-by-step explanation:

The surface area (A) of a sphere is calculated as

A = 4πr² ← r is the radius

here r = 2, hence

A = 4π × 2² = 4π × 4 = 16π units² → A

3 0
3 years ago
Which value for the number makes the statement true? the quotient of a number and five is 8. a-4, b-8, c-40, d-80
Inga [223]
The letter is c because you divide 40 by 5 = 8
6 0
3 years ago
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