3 years ago

PLEASE ANSWER ASAP The formula for the average of two numbers is m=a+b/2 Solve for a.

Mathematics

1 answer:

Stolb23 [73]3 years ago

4 0

Multiply both sides by 2.

2m = a + b

Subtract both sides by b.

2m - b = a

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A coin is tossed 3 times. What is the probability that the number of tails obtained will be between 1 and 3 inclusive?

LekaFEV [45]

Answer: $\dfrac{7}{8}$

Step-by-step explanation:

Given : When a coin is tossed twice , the total outcomes will become

HHH , HHT , HTH , THH , TTH , THT , HTT ,TTT

Total outcomes = 8

Favorable outcomes to obtain 1 and 3 inclusive = HHT , HTH , THH , TTH , THT , HTT ,TTT

Number of favorable outcomes = 7

Probability that the number of tails obtained will be between 1 and 3 inclusive = $\dfrac{\text{Favorable outcomes}}{\text{Total outcomes}}$

$=\dfrac{7}{8}$

Hence, the probability that the number of tails obtained will be between 1 and 3 inclusive $=\dfrac{7}{8}$

5 0

4 years ago

Maisha has 3(x+2) hours reading a book 8x-5 hours sleeping and 2x hours playing.How many hours did she spend in all of these act

Mandarinka [93]

Add all the activities together

=3(x+2) + (8x-5) + 2x
multiply 3 by all in parentheses
=(3*x) + (3*2) + (8x-5) + 2x
=3x + 6 + 8x - 5 + 2x
combine like terms
=(3x + 8x + 2x) + (6 - 5)
=13x + 1

ANSWER: 13x + 1

Hope this helps! :)

6 0

3 years ago

Please help, i will give brainliest to whos first

Wittaler [7]

Thanks with all of my heart!

ik im not first but have a lovely day! u are really kind! never forget that!

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3 years ago

Consider the exponential function g(x) = 1,296 x .

AleksandrR [38]

1296(-1.75)= -2268;
1296(-1)= -1296;
1296(-0.25)= -324;
1296(0)=0;
1296(0.25)=324;
1296(0.5)=648;
1296(0.75)=972);
1296(1)=1296

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4 years ago

find the distance from P to m. Line m contains points (1,1) and (5,1) . Point P has coordinates (2,-4)

faust18 [17]

Check the picture below.

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4 years ago