MATHEMATICS HIGH SCHOOL

Please help, I don’t get it

Answers

Answer 1

Answer:

Answer:

28°

Step-by-step explanation:

The angles in a triangle add up to 180°.

180 - 118 - 34 = 28

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If RS = 12 and ST = 7, find RT. U

Answers

Answer:

Answer is 19

Step-by-step explanation:

Add 12 and 7 and you will get the Answer 19.

Hope this helps.

What is the square root of 5

Answers

√5 is √5!!!

It's irrational number.

2 < √5 < 3 because 2² = 4 < 5 < 3² = 9

√5 ≈ 2.236

A square root of a number is a value that can be multiplied by itself to give the original number.

√5 is √5

It is known as an irrational number.

An Irrational Number is a real number that cannot be written as a simple fraction.

Which expression is equivalent to x4 -y4

Answers

factorise

in this case the common factor is 4
so, 4(x-y)

A penny a nickel a dime and a quarter are tossed. what is the probability of obtaining four tailsfour tails on the tosses?

Answers

Probability of a tail for any on coin = 1/2
As the tosses of the 4 coins are independent of each other we multyiply the probs:-
P(4 tails) = 1/2 * 1/2*1/2*1/2 = 1/16

Write the explicit formula for the geometric sequence. Then find the fifth term in the sequence. a1 = –4, a2 = 8, a3 = –16

Answers

The sequence: a 1 = - 4, a 2 = 8, a 3 = -16,...
a 2 = a 1 * r
8 = - 4 * r
r = 8 : ( - 4 )
r = - 2
a n = a 1 * r^(n-1)
a 5 = - 4 * ( - 2 ) ^4 = - 4 * 16 = - 64
Answer:
The fifth term in the sequence is - 64.

Answer:

B. an = –4 · (–2)n–1; –64

Step-by-step explanation:

A set of data has a normal distribution with a mean of 5.1 and a standard deviation of 0.9. Find the percent of data greater than 6.9.about 16 %

about 34%

about 13.5%

about 2.5%

Answers

P(x > 6.9) = 1 - P(x < 6.9) = 1 - P[z < (6.9 - 5.1)/0.9] = 1 - P(z < 2) = 1 - 0.97725 = 0.02275.

Therefore P(x > 6) is about 2.5%

Answer:

2.5

Step-by-step explanation:

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