I usually don't post questions on here but Hell, I mind as well go for it. I was sick and now I'm behind, confused, and failing so any help is much appreciated.
3. Which number is equal to 5^3?
A. 15
B. 100
C. 125
D. 150
4. What is the squaee root of 25/64
A. 5/8
B. 12/32
C. The square root of 5/8
D. -5/8
5. Find the length of the hypotenuse of a right triangle. The length of one leg is 9 ft. Find the length of the other leg.
A. 11 ft
B. 18 ft
C. 20 ft
D. 28 ft
6. The length of the hypotenuse of a right triangle is 15 ft. The lengrh of one leg is 9 ft. Fond the length of the other leg.
9. Which of these non terminating decimals can be converted into a rational number?
A. 0.626226222...
B. 0.020220222...
C. 0.123123123...
D. 0.898998999...
13. Write a translation rule that maps point D (7,-3) onto point D'(2,5)
14. Triangle ABC jas coordinates A (1,4); B (3,-2); and C (4,2). Fund the coordinates of the image A'B'C after a reflection over the Y axis
6 answers
The first couple I am sure you can do.
like what is 5 * 5 * 5
and what is
the square root of
(5*5) /(8*8)
5 * 5 * 5 = ?
4.
http://www.google.com/#q=square+root+25%2F64+
5. ?
6.
a^2 + b^2 = c^2
9^2 + b^2 = 15^2
9.
http://www.mathsisfun.com/rational-numbers.html
13 and 14 -- I don't know.
Do you know how to convert a REPEATING non-terminating decimal into a quotient of whole numbers.
123/10^3 + 123/10^6 + 123 /10^9 .....
= (123/1000)(1 + 10^3 + 10^3*10^3 + 10*3*10*1*10^3 ......
= (123/1000) (a + ar + 1 r^2 .....
a = 1
r = 1/1000
is infinite geometric series
sum = 1/(1-r)
so
=(123/1000)(1/(1-1/1000)
= 123/1000 (1/999/1000)
=123/999
try
123/999 on your calculator
1 answer