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gtnhenbr [62]
2 years ago
10

Please help me with this math problem!!!!!​

Mathematics
1 answer:
vagabundo [1.1K]2 years ago
3 0

Answer:

Step-by-step explanation:

\cos ~A=0.5=cos~60 \\A=60^\circ\\B=180-A=180-60=120\\\angle~B=120^\circ

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The answer is 9 by the way. Draw a circle with sixty slices, shade in 15% or 9 slices.
6 0
3 years ago
Two runners start at the same point;Jayne and Jared.
Tomtit [17]

Answer:

160

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  1. 8
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6 0
2 years ago
A certain medicine is given in an amount proportional to a patient's body weight. Suppose a patient weighing
Marizza181 [45]
Set up a proportion.

pounds / milligrams of medicine

195/279 = 130/x

195x = 279 times 130
195x =36,270
x = 36,270/195
x = 186

A patient weighing 130 pounds needs 186 milligrams of medicine.
6 0
3 years ago
Solve for m: 2m² + 16 = 2m
Goshia [24]

Answer: m = 16

Step-by-step explanation:

2m² + 16 = 2m

2m² - 2m = 16

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5 0
2 years ago
When mrs. myles gave a test, the scores were normally distributed with a mean of 72 and a standard deviation of 8. this means th
irina [24]
The empirical rule states that in a normal distribution,
68% of data is within 1 std deviation of the mean
95%  of data is within 2 std deviation of the mean
99.7% of data is within 3 std deviation of the mean

In this case 95% of the cases would be within two std deviations of the mean 
    mean - 8         and    mean + 8
     72   - 8 = 64   and    72 + 8 = 80 

then 95% of the scores are between  64% and 80% on the test. 
5 0
3 years ago
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