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3 years ago

Answer with explanation please?

Mathematics

2 answers:

miss Akunina [59]3 years ago

8 0

Answer:

x=136°

bcs they are parallel and they are congruent

................

Paul [167]3 years ago

5 0

136 because the other angle is parallel

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There are 12 red marbles and 8 green marbles in a bag. What is the probability of selecting a red

madam [21]

Answer:

The probability of selecting a red marble, not replacing it, and then selecting a green marble from the bag is 24/95

Step-by-step explanation:

Number of red marbles = 12

Number of green marbles = 8

Total number of marbles = 12+8 = 20

Probability of selecting red marble = $\frac{12}{20}$

Since it is the case of no replacement

Remaining marbles = 20-1 = 19

Number of red marbles = 12-1=11

Number of green marbles = 8

Probability of selecting green marble = $\frac{8}{19}$

So, the probability of selecting a red marble, not replacing it, and then selecting a green marble from the bag = $\frac{12}{20} \times \frac{8}{19}=\frac{24}{95}$

Hence the probability of selecting a red marble, not replacing it, and then selecting a green marble from the bag is 24/95

3 0

4 years ago

PLEASE HELP !! ILL GIVE BRAINLIEST !

fomenos

Answer:

20 + 0i

Step-by-step explanation:

(10 + 5i) + (10 - 5i) = 20 + 0i

7 0

3 years ago

(Picture) MULTIPLYING POLYNOMIALS AND SIMPLIFYING EXPRESSIONS PLEASE HELP!!!!

Mrrafil [7]

Answer:

-32x² +8x -8
See below about the process

Step-by-step explanation:

The simplified expression is ...

3x(x -12x) +3x² -2(x -2)²

= 3x(-11x) +3x² -2(x² -4x +4) . . . . . simplify contents of parentheses

= -33x² +3x² -2x² +8x -8 . . . . . . . .eliminate parentheses

= (-33 +3 -2)x² +8x -8 . . . . . . . . . . group the coefficients of like terms

= -32x² +8x -8

8 0

3 years ago

Read 2 more answers

(4x^3 - x^2 +4x) + (x^3 -x^2 - 4x)

madreJ [45]

Answer:

5x³ - 2x²

Step-by-step explanation:

Step 1: Write out expression

4x³ - x² + 4x + x³ - x² - 4x

Step 2: Combine like terms (x³)

5x³ - x² + 4x - x² - 4x

Step 3: Combine like terms (x²)

5x³ - 2x² + 4x - 4x

Step 4: Combine like terms (x)

5x³ - 2x²

4 0

3 years ago

A gumball machine contains 2323 green gumballs, 5252 red gumballs, 3434 blue gumballs, 6161 yellow gumballs, and 3030 pink gumba

OleMash [197]

If you add all the gumballs together you get a total of 20200 gumballs now you just divide 5252 by the total number of 20200 to get the percent of 26% giving us the answer to what the percent of red there is in this container

(add all the number, divide the total number of reds by the total number of gumballs (5252 divided by 20200) which will give you the percent of red gumballs (26%)

5 0

3 years ago

Answer with explanation please?​

Answer with explanation please?