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jolli1 [7]
3 years ago
15

Suppose a line parallel to side BC of triangle ABC intersects AB and AC at point D and E, respectively. Find the length of AE if

DB = 32, AB= 48 and AC = 39
Mathematics
1 answer:
MrRissso [65]3 years ago
4 0

Answer: AE=13

Step-by-step explanation: took test

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Which of the following is equal to the rational expression when x ≠ -4 or 16?
stepan [7]

Answer:

C

Step-by-step explanation:

Given

\frac{x^2-16}{(x-16)(x+4)}

The numerator is a difference of squares

x² - 16 = (x - 4)(x + 4)

= \frac{(x-4)(x+4)}{(x-16)(x+4) } ← cancel the common factor (x + 4) on numerator/ denominator

= \frac{x-4}{x-16} → C

3 0
4 years ago
What is the sum of the infinite geometric series?
Alexandra [31]

Answer:

-288

Step-by-step explanation:

n=1/2 divided by -144. You then just plug that number which is .00347 into n in the equation and use a scientific calculator to find the answer.

3 0
4 years ago
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At what time would you reach 15ft above the water if you jump off a cliff using the formulaH(t)=-16t^2+8t+24
4vir4ik [10]

Answer:

  1.079 seconds

Step-by-step explanation:

You want to find t when H(t) = 15.

  15 = -16t^2 +8t +25

  10/16 = t^2 -1/2t . . . . . . subtract 24, divide by -16

  10/16 + 1/16 = t^2 -1/2t +(1/4)^2 . . . . . add (1/4)^2 to complete the square

  11/16 = (t -1/4)^2

  t -1/4 = √(11/16) . . . . . take the positive square root

  t = 1/4 +(√11)/4 = (1+√11)/4 . . . . use a common denominator

You would be 15 ft above the water at t = (1+√11)/4 ≈ 1.079 seconds.

3 0
4 years ago
A lawn with an area of 300 square feet needs 1/2 pound of grass seed. How many pounds of grass seed are needed for a lawn that i
Anna [14]
60x20=1200
1200/300=4
4x1/2=4/2=2 pounds of grass seed
8 0
3 years ago
Find the value of x<br><br> If 100x =265.0
kakasveta [241]
To solve:

1) Divide both sides by 100

100x/100 = 265/100

x = 2.65
8 0
4 years ago
Read 2 more answers
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