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Alex_Xolod [135]
3 years ago
6

If AD=8 and BD=4, what is the length of DC⎯⎯⎯⎯⎯⎯?

Mathematics
1 answer:
balu736 [363]3 years ago
4 0

Answer:

the answer should be 16!

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What value of x make the equation 24-(3x - 9)-6= -2(4x - 10+ 5x + 7 true?
maksim [4K]

Answer:

x = 0

Step-by-step explanation:

24 - (3x - 9) - 6 = -2(4x - 10) + 5x + 7

solve the brackets by using the distribute property:

1(3x - 9) = 3x - 9

-2(2x - 10) = -8x + 20

rewrite the equation:

24 - 3x - 9 - 6 = -8x + 20 + 5x + 7

combine like therms:

27 - 3x = -3x + 27

subtract 27 from both sides:

27 - 3x - 27 = -3x + 27 - 27

- 3x = -3x

add x to both sides of the equation:

-3x + 3x = -3x + 3x

x = x or 0 = 0

to check, substitute 0 for x

24 - (3(0) - 9) - 6 = -2(4(0) - 10) + 5(0) + 7

anything times 0 is 0

24 - (0 - 9) - 6 = -2(0 - 10) + 0 + 7

solve:

24 + 9 - 6 = 0 + 20 + 0 + 7

27 = 27

7 0
3 years ago
Are the graphs of 6 <br>y = -2x + 4 and y = 6x - 4 parallel perpendicular or neither
timurjin [86]
1st slope is -1/3. 2nd slope is 6

slope is same in parallel lines so not parallel

slopes are negative reciprocals in perpendicular lines so they aren't perpendicular

they are called oblique
4 0
3 years ago
Can someone help me &amp; show steps? Thank you
WARRIOR [948]

If this is a cube and each side is 6ft, each face will have an area of 6ft * 6ft, or 36ft. There are 6 faces on a cube, so 36ft * 6 = 216ft² as the surface area (it's also the same as 6³, fancy huh?)

8 0
3 years ago
Simplify the expression:<br>15 + 3(2 + 8) - 42​
SVETLANKA909090 [29]
The answer is three!!!!!!!!!!!
8 0
3 years ago
Read 2 more answers
Susan saw a recipe for a fruit salad she thought was fantastic for her upcoming get together of 20 people. It called for 1/2c of
natta225 [31]

Answer:

i would take 2c/ four servings of pineapples to serve all six people

Step-by-step explanation:

7 0
3 years ago
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