There is a video on khanacademy, search "rationalize the denominator." Then instead of getting the answer you will learn how to do it and be able to do it on other problems in the future.
Answer:
1:4 and 6:24
Step-by-step explanation:
Answer:
25
Step-by-step explanation:
The median of a trapezoid equals one half of the sum of the bases
AC is a median and EB and DF are the bases.
hence AC = 1/2(EB + DF)
We are given that EB = 13 and that AC = 19. And we need to find DF
To do so we plug in what we are given and solve for DF
AC = 1/2(EB + DF)
AC = 19, EB = 13
19 = 1/2(13 + DF)
Now solve for DF
* Multiply both sides by 2*
19 * 2 = 38
1/2(13 + DF) * 2 ( the 1/2 and 2 cancel out and we're left with 13 + DF )
We then have 38 = 13 + DF
* Subtract 13 from both sides *
38 - 13 = 13 - 13 + DF
We get that DF = 25
Answer:
B
Step-by-step explanation:
16 + 16 + 16 = 16 x 3
16 x 3 = 48
16 + 16 = 32
32 + 16 = 48
The painting would cost $ 387.45. Because 2'3"=24"+3"=27 inches and<span>3'5"=36"+5"=41 inches. The area will 1107 when 27 is multiplied with 41. The cost is obtained through multiplying 0.35 and 1107. Their product is 387.45. The painting costs $ 387.45
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