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erik [133]
3 years ago
6

tell whether the angles are adjacent or vertical then find the value of x. can someone help me please i need all the answers

Mathematics
1 answer:
dmitriy555 [2]3 years ago
6 0

Answer:

3. adjacent; 49
4. adjacent; 71

5. verticle; 41

6. adjacent; 14

Step-by-step explanation:

ok basically if the angles are next to each other, then they're adjacent and if they're across from eachother they're verticle.

to find 3:

set both equations equal to each other and solve because verticle angles are equal

to find 4:

add the 2 equations together and set it equal to 180 because adjacent angles add up to equal either a complementary angle or supplementary depending on the problem

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A number in the 100 thousands place ex "564,584"
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a set of pencils sells for 2.15 and costs 0.45 to make. Thirty percent of the profit from each set goes to the school. if 600 se
vredina [299]

Answer:

$306 go to the school

Step-by-step explanation:

2.15*600 =  1290

0.45*600 = 270

subtract :

1290- 270 = 1020

$1020 made

1020* 30% = 1020 * 0.30

1020* 0.30 = 306

so

$306

6 0
3 years ago
Ariana has atoy car collection. She keeps 14 of the toy cars on her wall, which is 35% of her entire collection. What is the tot
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Answer:

40 cars

Step-by-step explanation:

The total percentage of Ariana's car collection should be = 100%

35% of the collection = 14

1 percent = 14/35

1 percent is therefore 0.4

To get the total number of cars in Ariana's collection, we multiply 100 by 0.4

= 100 x 0.4 = 40

Therefore the total number of cars in her collection is equal to 40 and this is the answer to the question.

Another way to solve this is by cross multiplication

35% = 14

100% = ?

When we cross multiply we have:

(100x14)/35

= 1400/35

= 40

Thank you!

7 0
3 years ago
One fluid ounce of liquid is equivalent to two cups of liquid<br> TRUE OR FALSE
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3 years ago
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Consider the following binomial experiment. The probability that a green jelly bean is chosen at random from a large package of
Flura [38]

Answer:

There is a 5.79% probability that at most 2 jelly beans are chosen.

Step-by-step explanation:

For each jelly bean chosen, there are only two possible outcomes. Either it is green, or it is not. This is why we use the binomial probability distribution to solve this problem.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

In which C_{n,x} is the number of different combinatios of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

And p is the probability of X happening.

In this problem we have that:

There are 13 jelly beans, so n = 13.

The probability that a green jelly bean is chosen at random from a large package of jelly beans is 2/5. This means that p = 0.4.

If Sally chooses 13 jelly beans, what is the probability that at most two will be green jelly beans?

This is

P(X \leq 2) = P(X = 0) + P(X = 1) + P(X = 2).

In which

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 0) = C_{13,0}.(0.4)^{0}.(0.6)^{13} = 0.0013

P(X = 1) = C_{13,1}.(0.4)^{1}.(0.6)^{12} = 0.0113

P(X = 1) = C_{13,2}.(0.4)^{2}.(0.6)^{111} = 0.0453

So

P(X \leq 2) = P(X = 0) + P(X = 1) + P(X = 2) = 0.0013 + 0.0113 + 0.0453 = 0.0579.

There is a 5.79% probability that at most 2 jelly beans are chosen.

8 0
3 years ago
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