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3 years ago

What is the simplified form of 3 over x squared all over 1 over x-cubed ?

Mathematics

2 answers:

Ainat [17]3 years ago

8 0

5 I think I am a 5 th

Karo-lina-s [1.5K]3 years ago

4 0

Answer:

The answer is 3x....

Step-by-step explanation:

Lets re-write the given expression:

3/x² ÷ 1/x³

Now we know that the division will be changed into multiplication and the denominator of the second term will become numerator.

3/x² * x³/1

Now the expression becomes:

3x³/x²

According to the laws of exponents when you divide variables, just find the difference of their exponents. Therefore,

3x³/x² = 3x³-² = 3x

Thus the answer is 3x....

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(x3 + 2x² – 46x + 19) = (x + 8)<br> Synthetic division

joja [24]

Answer:

factor and set each factor equal to zero.

x ≈ − 8.02641268 , 0.23670905 , 5.78970363

Step-by-step explanation:

aight, this is my best shot. hope this helps

4 0

2 years ago

What is the area of the figure?

Zinaida [17]

Answer:

The area of the figure is 100

Step-by-step explanation:

5 0

3 years ago

If the perimeter of the triangle is 32 cm what is the length of each two sides? Write and solve equation

scZoUnD [109]

Answer:

12 centimeters

Step-by-step explanation:

An isosceles triangle has two congruent sides which are legs(2 sides having same length )If x is length of each leg, then we ca write the equation like this

equation: x+x+8=32

combine like terms

2x +8 = 32

minus 8 from each side

2x=32-8

2x=24

divide both sides by 2

2x/2 = 24/2

x=12 centimeters

3 0

3 years ago

Carter is selling his bike. His research shows that the bike has a current value of $90, which is 45% of the amount Carter paid

GaryK [48]

Carter paid $200 for the bike.

Step-by-step explanation:

Given,

Current value of bike = $90

This represent 45% of the original amount Carter paid for bike.

Let,

x represent the original amount of bike.

45% of x = 90

$\frac{45}{100}x=90\\\\0.45x=90$

Dividing both sides by 0.45

$\frac{0.45x}{0.45}=\frac{90}{0.45}\\x=200$

Carter paid $200 for the bike.

Keywords: percentage, division

Learn more about division at:

#LearnwithBrainly

6 0

3 years ago

You take a quiz with 6 multiple choice questions. After you studied your estimated that you would have about an 80 % chance of g

Arada [10]

Answer:

1.15%

Step-by-step explanation:

To get the probability of m independent events you multiply the individual probability of each event. In this case we have m independent events, each one with the same probability, therefore:

$p^{m}$

$0.8^{20} = 1.15\%$

This is a particlar scenario of binomial distribution problem. So the binomial distribution questions are about the number of success of m independent events, where every individual event has the same p probability. In the question we have 20 events and each event has a probability of 80%. The binomial distribution formula is:

$\binom{n}{k} * p^{k} * (1-p)^{n-k}$

n is the number of events

k is the number of success

p is the probability of each individual event

$\binom{n}{k}$ is the binomial coefficient

the binomial coefficient allows to find the subsets of k elements in a set of n elements. In this case there is only one subset possible since the only way to get 20 of 20 correct questions is to getting right all questions (for getting 19 of 20 questions there are many ways, for example getting the first question wrong and all the other questions right, or getting second questions wrong and all the other questions right, etc).

$\binom{n}{k} = \frac{n!}{k!(n-k)!}$

therefore, for this questions we have:

$\frac{20!}{20!(20-20)!} * 0.8^{20} * (1-0.8)^{0} = 1.15\%$

4 0

2 years ago