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2 years ago

Asap help with this PLEASE

Mathematics

1 answer:

12345 [234]2 years ago

7 0

Answer:

124.5°

Step-by-step explanation:

Let the smallest angle be x. Then, the sum of the angles is an arithmetic sequence with first term x, common difference 7, and 8 terms.

Using the sum of an arithmetic series formula,

$\frac{8}{2}(2x+(8-1)(7))=1080 \\ \\ 4(2x+49)=1080 \\ \\ 2x+49=270 \\ \\ 2x=221 \\ \\ x=110.5$

So, the third angle is 110.5+14=124.5

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Write the radical into exponential form √8

OverLord2011 [107]

Answer:

$its \: value \: is \: 2(if \: we \: take \: cube \: root)and \\ \: 2 \sqrt{2} \: \:( if \: we \: take \: square \: root) \\ \\ radical \: form \\ \\ \sqrt{8} = 2 \times 2 {}^{ \frac{1}{2} }$

6 0

3 years ago

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The probability of a middle school student owning a skateboard is 0.58, of owning a bicycle is 0.48 and of owning both is 0.45.

Vera_Pavlovna [14]

Answer:

The probability that the middle school student owns a skateboard or a bicycle is 0.61.

Step-by-step explanation:

We are given that the probability of a middle school student owning a skateboard is 0.58, of owning a bicycle is 0.48, and owning both is 0.45.

A middle school student is chosen at random.

Let the probability of student owning a skateboard = P(S) = 0.58

The probability of student owning a bicycle = P(B) = 0.48

The probability of student owning both = P(S $\bigcap$ B) = 0.45

Now, the probability that the middle school student owns a skateboard or a bicycle is given by = P(S $\bigcup$ B)

P(S $\bigcup$ B) = P(S) + P(B) - P(S $\bigcap$ B)

= 0.58 + 0.48 - 0.45

= 0.61

Hence, the probability that the middle school student owns a skateboard or a bicycle is 0.61.

4 0

3 years ago

One possible soluton to a din rishing Social Security payroll is to increase the Social Security tax by 1 89% an increase effect

hjlf

The answer is 102060 because if you multiply 54000 by 1.89 you get 102060

4 0

4 years ago

National Bank advertises an intrest rate (in decimal form) of 0.12 if your initial investment is 500 and you want to acumalte $9

elena-s [515]

Answer:

It will take 15 years for $500 to yield $900 at an interest rate of 0.12

Step-by-step explanation:

Simple Interest equals Principal times Rate times The time in years,

That is SI = P*R*T

SI is $900

P = $500

R = 0.12

T i.e. Time is unknown

T will be equal to SI divided by P*R

i.e., T = SI/PR

T = $900/$500*0.12 = 900/60

T = 15 years.

Therefore, it will take $500 investment to yield $900 interest in 15 years at an interest rate of 0.12

4 0

4 years ago

Which is an example of a statistical question?

tiny-mole [99]

Answer:

Question 4

Step-by-step explanation:

Question 4 is the correct answer because you are asking numerous students and are getting more than one answer. Then you can find the average or whatever.

The other questions only get 1 answer.

Hope this helped :)

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4 years ago

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