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3 years ago

What is (3x-2) - (4x+1)

1 answer:

3 0

Since this isn't an equation, you can only simplify, not solve.
Step one: Distribute the negative to the second binomial
3x-2-4x-1
Step two: Add/Subtract like terms
-x-3
That's your answer! :)

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3(2x+7)+15-2x what is the answer to this

sp2606 [1]

6x+21+15-2x
4x+36
hope this helps...

3 0

3 years ago

Read 2 more answers

Find the solution set for the following problem. 5 diminished by 3 times a number is at most 11.

leva [86]

For this case, the first thing we are going to do is define the following variable:
x = unknown number
We now write the following inequality:
5-3x <= 11
We clear x:
5-11 <= 3x
-6 <= 3x
-6/3 <= x
-2 <= x
The solution set is:
[-2, inf)
Answer:
the solution set is:
[-2, inf)

4 0

3 years ago

Find the indicated probability.

natka813 [3]

Answer:

C) 0.179

Step-by-step explanation:

Since the trials are independent, this is a binomial distribution:

Recall:

Binomial Distribution --> $P(k)={n\choose k}p^kq^{n-k}$
$P(k)$ denotes the probability of $k$ successes in $n$ independent trials
$p^k$ denotes the probability of success on each of $k$ trials
$q^{n-k}$ denotes the probability of failure on the remaining $n-k$ trials
${n\choose k}=\frac{n!}{(n-k)!k!}$ denotes all possible ways to choose $k$ things out of $n$ things

Given:

$n=10$
$k=4$
$p^k=0.53^4$
$q^{n-k}=(1-0.53)^{10-4}=0.47^6$
${n\choose k}={10\choose 4}=\frac{10!}{(10-4)!4!}=210$

Calculate:

$P(4)=(210)(0.53^4)(0.47^6)=0.1786117069\approx0.179$

Therefore, the probability that the archer will get exactly 4 bull's-eyes with 10 arrows in any order is 0.179

7 0

2 years ago

From 5 employees at a company, a group of 3 employees will be chosen to work on a project. How many different groups of 3 employ

Andrei [34K]

Hello,

aPb=b*(b-1)*(b-2)*....*(b-a+1) / a!

3P5=5*4*3/(3*2*1)=10

If we name the number of the employers 1,2,3,4,5

Here are the choices:

123,124,125,134,135,145,234,235,245,345 (total 10 choices)

8 0

3 years ago

Read 2 more answers

Give the trig ratio as a fraction

faust18 [17]

Answer:

What is the question I understand the part where you need a ratio as a fraction but, is there a way you can put a pic of the numbers or put the numbers in the question?

7 0

4 years ago