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3 years ago

Which number line represents the solution set for the inequality-1/2x>_4

Mathematics

1 answer:

Vesna [10]3 years ago

6 0

Answer:

Step-by-step explanation:

Firstly, we solve for x

-x ≥ 2 * 4

-x ≥ 8

Multiply both sides by -1

x ≤ -8

So we look at the inequality represented by this;

We can see that the correct inequality is option B;

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siniylev [52]

The answer is a: 80%

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3 years ago

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The length of a rectangle is 8 inches and the width is x inches. What is the perimeter, in inches?

GaryK [48]

AAAAAAA 2x8+2x=16+2x

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2 years ago

Y+5=-(x+5) in standard form

swat32

1. y+5=-x-5

2. y=-x-5-5

3.y=-x-10

4. y=x-10

_______________________

1. distribute negative sign

2. move the constant to the right and change the sign

3. -5-5 equals -10, bring everything down

4. change the sign of the x to positive, the equation is in standard form

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3 years ago

If you flip a fair coin 7 times, what is the probability that you will get exactly 4 tails?

andre [41]

Probability that you will get exactly 4 tails, if you flip a fair coin 7 times is: $\frac{35}{128}$

Step-by-step explanation:

We need to find the probability that you will get exactly 4 tails, if you flip a fair coin 7 times.

This is the combination question.

The total combinations will be: 2^7=128

Now, finding number of ways we can get exactly 4 tiles:

We will use the formula:

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

in our given question, n= 7, k= 4

Putting values:

$^nC_k=\frac{n!}{k!(n-k)!}\\^7C_4=\frac{7!}{4!*3!}\\ ^7C_4=\frac{7*6*5*4!}{4!*3!}\\ ^7C_4=\frac{7*6*5}{6}\\ ^7C_4=35$

So, Probability that you will get exactly 4 tails, if you flip a fair coin 7 times is: $\frac{35}{128}$

Keywords: Probability

Learn more about Probability at:

#learnwithBrainly

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3 years ago

Jeffrey ate out for lunch his meal cost 10.50 he would like to leave an 18% tip. how much does the lunch cost in total?

Mila [183]

Answer:

12.39

Step-by-step explanation:

18% 10.50 = 1.89

10.50+1.89 = 12.39

5 0

3 years ago