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shtirl [24]
3 years ago
15

M∠A = 40º

Mathematics
1 answer:
denis23 [38]3 years ago
7 0
180-40=140. 140/5 = 28

x= 28

angle B: 5(28) = 140
140 + 40 = 180

180=180
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Consider AWHY below.
pshichka [43]

73.0

Step-by-step explanation:

tan 67°=O/A=h/31

h=31tan67°

h=73.0

4 0
3 years ago
Is the point (5,-3) on the circle defined by (x-5)^2+(y+3)^2=4
Mariulka [41]
It can be defined by the equation.

3 0
3 years ago
Consider the experiment of tossing a fair coin 3 times. For each coin, the possible outcomes are heads or tails.(a) List the equ
Burka [1]

Answer:

a)

H - H - H

H - H - T

H - T - H

H - T - T

T - H - H

T - H - T

T - T - H

T - T - T

b)

0.125 = 12.5% probability that all three coins come up heads.

0.875 = 87.5% probability that there will be at least one tail.

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

Question a:

Considering H for heads, T for tails:

H - H - H

H - H - T

H - T - H

H - T - T

T - H - H

T - H - T

T - T - H

T - T - T

(b) What is the probability that all three coins come up heads?

One outcome(H - H - H) out of 8, so:

p = \frac{1}{8} = 0.125

0.125 = 12.5% probability that all three coins come up heads.

Notice that the complement of the event "3 heads" is "at least one tail." Use this information to compute the probability that there will be at least one tail.

Sum of these probabilities is 100%, so:

1 - 0.125 = 0.875

0.875 = 87.5% probability that there will be at least one tail.

6 0
3 years ago
Find and simplify the expression if f(x)=x^2-10.<br><br> f(4+h)-f(4)=
11111nata11111 [884]

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8 0
3 years ago
Read 2 more answers
Suppose that a vaccine is 85% effective against the flu. You vaccinated 6 people. How many of the 6 vaccinated people do you exp
zloy xaker [14]
<h3>5 of the 6 vaccinated people will be protected from the virus</h3>

<em><u>Solution:</u></em>

Given that,

Suppose that a vaccine is 85% effective against the flu

You vaccinated 6 people

To find: Number of people you expect will be protected from the virus

From given,

85 % of 6 people are effective against the flu

Which means,

\rightarrow 85 \% \text{ of } 6\\\\\rightarrow \frac{85}{100} \times 6\\\\\rightarrow 0.85 \times 6\\\\\rightarrow 5.1 \approx 5

Thus, 5 of the 6 vaccinated people will be protected from the virus

6 0
3 years ago
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