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3 years ago

HELP PICTURE IS SHOWN

Mathematics

1 answer:

Ahat [919]3 years ago

5 0

Its 108 because the triangle is acute so all angle are less than or equal to 90 and i did 54+54+72=180 ant the measurement of the exterior angle is 108

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Giving brainliest !! show all work<br><br> t/-3=6

Mumz [18]

T = -18 <span>☆ If you multiply both sides by -3, it will cancel out on the left side to leave you with t by itself and will also leave you with -18 on the right side. Hope this helps! If you need any more clarification leave a comment letting me know :0</span>

7 0

4 years ago

I just want to make sure I got this answer right.

Ahat [919]

Answer:

yeah

Step-by-step explanation:

6 0

2 years ago

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A practice pool is shown. A coach walks from point A to point B to Point C. A swimmer swims directly from point A to C. Who is t

ira [324]

Answer:

C (I Think)

Step-by-step explanation:

7 0

3 years ago

One sample has a mean of M= 6, and a second sample has a mean of M = 12. The two samples are combined into a single set of score

lakkis [162]

Answer:

a) 9

b) 10

c) 8

Step-by-step explanation:

We are given the following in he question:

Mean of sample A = 6

Mean of sample B = 12

Formula:

$Mean = \displaystyle\frac{\text{Sum of all observations}}{\text{Total number of observation}}$

$\dfrac{\displaystyle\sum x_a}{n_a} = 6\\\\\dfrac{\displaystyle\sum x_b}{n_b} = 12$

a) original samples have n = 4 scores

$\dfrac{\displaystyle\sum x_a}{4} = 6,\sum x_a = 24\\\\\dfrac{\displaystyle\sum x_b}{4} = 12,\sum x_b = 48\\\\\text{Combined mean} = \displaystyle\frac{\sum x_a + \sum x_b}{4+4}=\frac{24 + 48}{4 + 4} = 9$

b) first sample has n = 3 and the second sample has n = 6

$\dfrac{\displaystyle\sum x_a}{3} = 6,\sum x_a = 18\\\\\dfrac{\displaystyle\sum x_b}{6} = 12,\sum x_b = 72\\\\\text{Combined mean} = \displaystyle\frac{\sum x_a + \sum x_b}{3+6}=\frac{18+72}{3+6} = 10$

c) first sample has n = 6 and the second sample has n = 3

$\dfrac{\displaystyle\sum x_a}{6} = 6,\sum x_a = 36\\\\\dfrac{\displaystyle\sum x_b}{3} = 12,\sum x_b = 36\\\\\text{Combined mean} = \displaystyle\frac{\sum x_a + \sum x_b}{6+3}=\frac{36+36}{6+3} = 8$

7 0

3 years ago

A clogged bathtub drains at a constant rate. The amount of water in the bathtub changes by -3.75 gallons in one hour. What is th

Sergeeva-Olga [200]

-1.25 gallon is the change of the amount of water after 1/3 of an hour.

You just need to times -3.75 by 1/3 and you will get the answer of 1/3 hour

3 0

3 years ago

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