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3 years ago

Can anybody help me out?

Mathematics

1 answer:

charle [14.2K]3 years ago

7 0

You need to isolate the "x" in both inequalities

5x + 7 ≤ -3 Subtract 7 on both sides

5x ≤ -10 Divide 5 on both sides

x ≤ -2

3x - 4 ≥ 11 Add 4 on both sides

3x ≥ 15 Divide 3 on both sides

x ≥ 5

This is your simplified inequalities:

5x + 7 ≤ -3 or 3x - 4 ≥ 11 ---------> x ≤ -2 or x ≥ 5 Your answer is A

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It costs you $22.25 per day to rent a car in New York City. In addition, you have to pay 16 cents for every mile you travel. How

olganol [36]

Answer: $178.13

Step-by-step explanation:

418x0.16=66.88

22.25x5=111.25

111.25+66.88=178.13

4 0

3 years ago

) The manager of a local Gap store estimates that on average the probability of a customer entering the store and will purchase

xeze [42]

Answer: 1. 0.0256

2. 0.4096

Step-by-step explanation:

Binomial probability formula , to find the probability of getting x successes:

$P(x)=^nC_xp^x(1-p)^{n-x}$ , where n= Total number of trials

p= Probability of getting success in each trial.

Let x be the number of customers will make purchase.

As per given , we have

p= 0.20

n= 4

1. The probability that 3 of the next 4 customers will make a purchase will be:-

$P(x=3)=^4C_3(0.20)^3(1-0.20)^{4-3}$

$P(x=3)=(4)(0.20)^3(0.80)^{1}\ \ [\because\ ^nC_{n-1}=n]$

$P(x=3)=(4)(0.008)(0.80)=0.0256$

Hence, the probability that 3 of the next 4 customers will make a purchase = 0.0256

2. The probability that none of the next 4 customers will make a purchase will be :

$P(x=0)=^4C_0(0.20)^0(1-0.20)^{4-0}$

$P(x=0)=(1)(0.80)^{4}\ \ [\because\ ^nC_{0}=1]$

$P(x=0)=0.4096$

Hence, the probability that none of the next 4 customers will make a purchase= 0.4096

5 0

3 years ago

Can someone help me with this and show the work :) i’ll mark first person brainlyest

weqwewe [10]

Answer:

its probably is B. I am not sure. I wouldnt trust me though but you can if you want. ._.

5 0

3 years ago

PLEASE HELP ME WITH THIS!! ;(

DochEvi [55]

Answer:

Zoom in and mark me as brainliest

4 0

3 years ago

Please answer this correctly without making mistakes

maksim [4K]

Answer:

Step-by-step explanation:

3 0

2 years ago