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3 years ago

Helpppp... I suck at algebra. the question is down below 7x(-3)x(-2)^2

Mathematics

2 answers:

Oksanka [162]3 years ago

6 0

Hey there!

Plug into your like terms and you'll find out your result!

Let's solve your problem for your result, shall we?

$7(x)(-3)(x)(4)\\ \\ 7(-3)(-2) ^2= -84 \\ \\ \\$

Therefore your answer would be: $-84x^2$

Good luck on your assignment and enjoy your day!

~ $LoveYourselfFirst:)$

ElenaW [278]3 years ago

5 0

-84x^2 is the answer

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3 years ago

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Soloha48 [4]

Answer:

$P(M4\ n\ V) = 2.083\%$

Step-by-step explanation:

Given

Paper = 20 slips

Word: PENNSYLVANIA

Required

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The sample size of the 20 slips is:

$n(S) = 20$

The outcomes of multiples of 4 is:

$M4= \{4,8,12,16,20\}$

$n(M4) = 5$

So, the probability of multiples of 4 is:

$Pr(M4) = \frac{5}{20}$

$Pr(M4) = \frac{1}{4}$

The sample size of PENNSYLVANIA is:

$n(S) = 12$

The outcome of V is:

$n(V) = 1$

So, the probability of V is:

$P(V) = \frac{1}{12}$

So, the required probability is: P(Multiple of 4 and V)

$P(M4\ n\ V) = P(M4) * P(V)$

$P(M4\ n\ V) = \frac{1}{4} * \frac{1}{12}$

$P(M4\ n\ V) = \frac{1}{48}$

$P(M4\ n\ V) = 0.02083$

Express as percentage

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3 years ago

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Let red marbles = X.

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1/5 = x/5x

Now you have 5x total marbles, x red and 4x blue.

Add 5 more red and the new probability is:

(x+5)/(5x+5) = 1/3

Simplify:

3x+15 = 5x+5

Now solve for x:

Subtract 3x from both sides:

15 = 2x +5

Subtract 5 from each side:

2x = 10

Divide both sides by 2:

x = 10/2

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3 years ago

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Answer:

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2 years ago