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Basile [38]
3 years ago
10

True or false? If two angles are congruent then the two must have equal measures.

Mathematics
1 answer:
Sidana [21]3 years ago
5 0
Congruent means the same or identical

so if you have two right angle they are both congruent to each other

Answer: True
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Suppose that in a certain county 37% of voters are registered as Democrats, 29% as Republicans, 7% as Green party, and the rest
Fantom [35]

Answer:

0.66

Step-by-step explanation:

GIVEN: Suppose that in a certain county 37\% of voters are registered as Democrats, 29\% as Republicans, 7\% as Green party, and the rest are considered Independents. You conduct a poll by calling registered voters in the county at random.

TO FIND: Probability that the first call will be to either a Democrat or a Republican.

SOLUTION:

Lets total population of county be 100x.

voters registered as Democrats =37\%=\frac{37}{100}\times100x

                                                     =37x

voters registered as Republicans =29\%=\frac{29}{100}\times100x

                                                       =29x

voters registered as Green party =7\%=\frac{7}{100}\times100x

                                                       =7x

Probability that first call will be to Democrats P(A)=\frac{\text{total democrats}}{\text{total voters}}

                                                                                    =\frac{37x}{100x}=0.37

Probability that first call will be to Republican P(B)=\frac{\text{total republicans}}{\text{total voters}}

                                                                                     =\frac{29x}{100x}=0.29

probability that the first call will be to either a Democrat or a Republican

=P(A)+P(B)

=0.37+0.29

=0.66

Hence the probability that the first call will be to either a Democrat or a Republican is 0.66

6 0
3 years ago
Some please help and explain the steps. Tysmmmmm
-Dominant- [34]

Answer:

since angle B and angle C contains the same arc AD. set the angles equal

11x-3=8x+15

x=6

so the angle has a measure of 63 degrees

the central angle is the angle of the arc

and it is always 2 times the angle that we just that contains the arc but does touches the end of the circle.

so its 63 *2 =126 degrees.

5 0
2 years ago
solve the word problem. paula has 24 coins in her drawer. seven of the coins are nickels and the rest are pennies. what is the t
Arlecino [84]
52 cents
i hope this helps

8 0
3 years ago
Can someone please help with this and explain how you the answer, I'll mark you as brainliest
ki77a [65]

Answer:

7?

Step-by-step explanation:

I think...

4 0
3 years ago
Find f(-2) if f(x) =x^4 +2x^2-1
Ierofanga [76]

Answer:

Plug -2 in for x of f(x)

--> -2^4 + 2(-2)^2 - 1

---> 23

f(-2) = 23

4 0
2 years ago
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