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3 years ago

HELLPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP

Mathematics

1 answer:

yawa3891 [41]3 years ago

3 0

Answer:

I SAY YOUR ANSWER IS 5

Step-by-step explanation:

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8x= 4x - 32 solve for x

stealth61 [152]

Solve for x.

8x=4x-32

Subtract 4x from both sides.

4x=-32

Divide by 4 on both sides.

x=-8

answer: x=-8

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4 years ago

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A deli has a special one-day event to celebrate its anniversary. On the day of the event, every eighth customer receives a free

enyata [817]

Answer:

the number of common customers are 8 in number

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A rectangle has a height of 4 and a width of x2 + 3x + 2.

otez555 [7]

<h3><u>Given</u>:</h3>

A rectangle has a height of 4 and a width of x² + 3x + 2.

The area of the entire rectangle.

<h3><u>Solution</u>:</h3>

Hence, we know that area of rectangle is equals to the product of length and breadth.

Therefore, the area of rectangle is,

$= 4 \times( {x}^{2} +3x + 2 ) \\ = 4({x}^{2} + 3x + 2) \\ = \green{ \boxed{4 {x}^{2} + 12x + 8}}$

Therefore, the answer is 4x² + 12x + 8.

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3 years ago

A group of 8 friends (5 girls and 3 boys) plans to watch a movie, but they have only 5 tickets. If they randomly decide who will

Eddi Din [679]

Answer:

D. 0.821

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

The combinations formula is important to solve this question:

$C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

Desired outcomes

The order is not important. For example, Elisa, Laura and Roze is the same outcome as Roze, Elisa and Laura. This is why we use the combinations formula.

At least 3 girls.

3 girls

3 girls from a set of 5 and 2 boys from a set of 3. So

$C_{5,3}*C_{3,2} = 30$

4 girls

4 girls from a set of 5 and 1 boy from a set of 3. So

$C_{5,4}*C_{3,1} = 15$

5 girls

5 girls from a set of 5

$C_{5,5} = 1$

$D = 30+15+1 = 46$

Total outcomes

5 from a set of 8. So

$T = C_{8,5} = 56$

Probability

$P = \frac{D}{T} = \frac{46}{56} = 0.821$

So the correct answer is:

D. 0.821

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3 years ago

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(write using exponent) I’ll give brainliest !! Pls help

Rasek [7]

Answer:

$\frac{1}{4^{21} }$

Step-by-step explanation:

$4^{-3*7}$

$4^{-21}$

$\frac{1}{4^{21} }$

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3 years ago