MATHEMATICS
MIDDLE SCHOOL

Answer: 8 ones = 1 X 8 = 8

0 tenths = 0 X 1/10 = 0

9 hundredths = 9 X 1/100 = 0.09.

Now we can add everything together to obtain the value.

8 + 0 + 0.09 = 8.09.

Now we can find the difference between the 2 values.

8.09 - 3.40 = 4.69.

4.69 is the final answer.

0 tenths = 0 X 1/10 = 0

9 hundredths = 9 X 1/100 = 0.09.

Now we can add everything together to obtain the value.

8 + 0 + 0.09 = 8.09.

Now we can find the difference between the 2 values.

8.09 - 3.40 = 4.69.

4.69 is the final answer.

COLLEGE

ΔABC has three sides with these lengths: AB = 9, BC = 40, and CA = 41. What is the value of cos C?

41*41 = 1681

40*40 = 1600

9* 9 = 81

so a^2 = b^2 + c^2

1681 = 1600 + 81

1681 = 1681 ...it's right triangle

CA = 41 = Hypo.

cosC = Adj / Hypo

cosC = BC / CA = 40/41

answer

cosC = 40/41

40*40 = 1600

9* 9 = 81

so a^2 = b^2 + c^2

1681 = 1600 + 81

1681 = 1681 ...it's right triangle

CA = 41 = Hypo.

cosC = Adj / Hypo

cosC = BC / CA = 40/41

answer

cosC = 40/41

Answer:

The correct answer is

C 40/41

Step-by-step explanation:

HIGH SCHOOL

Volunteers were 3/4 finished with the walkathon when they reached the 4 1/2 kilometer mark how long was the walkathon

Answer:

6 km

Step-by-step explanation:

Given,

The part of the race have finished =

And, the distance of race have completed =

That is,

Hence, the length of the marathon would be 6 km.

It was 6 miles long.

HIGH SCHOOL

Find three consecutive even numbers if it is known that the sum of the squares of the first 2 is equal to the square of the third number.

6,8,10 or -2,0,2

HIGH SCHOOL

Sophia mixed paint in a bucket for every 3 cups of yellow paint she put in the bucket she mixed in one cup of white paint what is the ratio of yellow paint to white paint and Sophia's mixture

Answer:

3:1

Step-by-step explanation:

For every 3 cups of yellow paint, she puts in 1 cup of white paint, making this ratio 3:1. Following ratios would be 6:2, 9:3, 12:4, and so on.

Hope this helps!