3 years ago

Whoever answers correctly gets brainliest, I need help ASAP don't send answers after 30 mins, the picture is attached

Mathematics

2 answers:

snow_tiger [21]3 years ago

6 0

Answer:

AB = 21

Step-by-step explanation:

BC and DE are sides of a regular pentagon, so their lengths are equal.

5x - 4 = 2x + 11

3x = 15

x = 5

All sides are congruent, so AB = BC = 5x - 4

AB = BC = 5x - 4

AB = 5(5) - 4

AB = 25 - 4

AB = 21

Artemon [7]3 years ago

3 0

Answer:

hi how are you hope you are doing good :D

Step-by-step explanation:

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Rewrite the parametric equations by eliminating the parameter. Select ONE.

Vinil7 [7]

Answer:

$Y=(X-7)/2$

Step-by-step explanation:

we have

$X=2t+3$ -----> equation A

$Y=t-2$ -----> $t=Y+2$ -----> equation B

Substitute equation B in equation A

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$X=2Y+7$

solve for Y

$2Y=X-7$

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3 years ago

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Answer:

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Step-by-step explanation:

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3 years ago

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zubka84 [21]

Answer:

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Step-by-step

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3 years ago

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There are three marbles in a bag. One is red and two are black. What is the probability of picking a black marble first, putting

Maru [420]

Answer:

well for me I think

Step-by-step explanation:

2/3×2/3

4/9

since they are replacing the black marbles back

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