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e-lub [12.9K]
3 years ago
7

If B is the midpoint of line AC, AC = CD, AB = 3x+4, AC=11x-17, and CE = 49, find DE. (Show work)

Mathematics
1 answer:
larisa [96]3 years ago
3 0

Answer:

2(3x+4) = 11x-17

6x+8 = 11x-17

25=-5x

x=-5

11x-17

55-17

38

AC = 38

CD = 38

49-38 = 11

DE = 11

Let me know if this helps!

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Melinda bought 6 bowls for $13.20. what was the unit rate in dollars
OlgaM077 [116]
To find the unit rate we will divide the amount of dollars ($13.20) by the amount of bowls (6). Then we will check our work. lets do it:-

13.20 ÷ 6 = 2.20
$2.20 per bowl

CHECK OUR WORK:-

2.20 × 6 = 13.20
we were RIGHT!!

So, the unit rate in dollars for, Melinda bought 6 bowls for $13.20  is, $2.20 per bowl.

Hope I helped ya!! xD
8 0
3 years ago
Read 2 more answers
If f(x) is a function and f(1) = 5, then which of the following could not be true?
vodomira [7]
A. you are given that f(1)=5 therefore f(1) cannot also equal 1 unless it is a different equation. 


5 0
3 years ago
Paula rolls a fair number cube with sides labeled 1 through 6. What is the probability of Paula rolling a number that is 3 or gr
WARRIOR [948]
%66.666
Because 4/6 times it will be that which is %66.666
8 0
2 years ago
Can someone pleaseee help me!!
Cloud [144]

Answer:

121

Step-by-step explanation:

180°-74° = 106°

106°= x-15°

106+15= X

x= 121

(correct me if im wrong plz)

8 0
3 years ago
Plz help me with this
goldenfox [79]
Area of triangle=1/2(base×height)
360=1/2((4x-2)(7x+5))
720=(4x-2)(7x+5)
FOIL the binomial
720=28x^2+6x-10
Bring 720 to the other side
28x^2+6x-10-720=0
28x^2+6x-730=0
Factor 2 out
2(14x^2+3x-365)=0
Factor 2(14x+73)(x-5)=0
x-5=0
x=5
It can't be 14x-73=0 because the length can't be negative.
You're welcome.
5 0
3 years ago
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