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3 years ago

Please help me!!!! I will mark brainlist.

Mathematics

2 answers:

Misha Larkins [42]3 years ago

8 0

Answer:

angle 1 =135

Step-by-step explanation:

it is 180 degrees total. We know that there are two angles that have a ratio to 3:1. So, assign x to 2. Since 1 = 3x, we do 3x+x =180

4x=180

x=45 or angle 2

180-45=135 or angle 1

Multiply angle 2 by 3 to check if its correct

Gnesinka [82]3 years ago

4 0

Answer:

the measurement of angle 1 is 135 degrees. (i think)

Step-by-step explanation:

so we know that angle 1 and 2 are at a 3:1 ratio

and that 1 and 2 add to 180 degrees

if you plug the number 45 in to angle 1, then multiply that by 3 you get 135

the remaining number to add to 180 would be angle 2

which is 45 degrees.

If the explanation is choppy or hard to read, apologies, its fairly hard for me to explain this.

however i hope this helps.

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Can someone help on these two questions

notsponge [240]

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3 years ago

Students in a school were surveyed about their study habits. Forty-two percent of students said they study on weeknights and wee

MA_775_DIABLO [31]

Answer:

0.6 = 60% probability that he or she studies on a weeknight.

Step-by-step explanation:

We solve this question treating these events as Venn probabilities.

I am going to say that:

Probability A: Probability of a student studying on weeknights.

Probability B: Probability of a student studying on weekends.

Forty-two percent of students said they study on weeknights and weekends

This means that $P(A \cap B) = 0.42$

47% said they studied on weekends

This means that $P(B) = 0.47$

65% said they study either on weeknights or weekends.

This is $P(A \cup B) = 0.65$

If you were to pick one student at random, what is the probability that he or she studies on a weeknight?

This is P(A), and the equation used is:

$P(A \cup B) = P(A) + P(B) - P(A \cap B)$

Considering the values we have:

$0.65 = P(A) + 0.47 - 0.42$

$0.05 + P(A) = 0.65$

$P(A) = 0.6$

0.6 = 60% probability that he or she studies on a weeknight.

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3 years ago

Since there are 5,280 feet in one mile and 3.3 feet in one meter how many meters per second are equivalent to 144 miles per hour

chubhunter [2.5K]

He would be going at a rate of
51 meters per second
Could you mark the Brainliest?

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3 years ago

$470 is raised by 30%. What is the value after the increase?

alekssr [168]

<h3>Answer: $611</h3>

Work Shown:

30% of 470 = 0.30*470 = 141

The value goes up by $141, so the answer would be 470+141 = $611

A slight shortcut would be to say

1.30*470 = 611

This works because 1.30 = 1 + 0.30 = 100% + 30%

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3 years ago

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Andrei [34K]

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Step-by-step explanation:

To find the distance between the two points,find the difference between the x and y values, square them and add them to find their square root.

10 - (-14) = 24

-16 - 2= -18

24^2 + 18^2 = d^2 where d is the distance

576 + 324 = d^2

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4 years ago

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