MATHEMATICS COLLEGE

Please help meeee, its due today

Answers

Answer 1

Answer:

Answer:

The answer is X∈∅

Step-by-step explanation: {=

$x=3\atop {x=-12}} \right.$

Related Questions

The lines shown below are parallel. If the green line has a slope of -1/2, what is the slope of the red line? A.2B.-C.-2D.
Cody hiked at an average speed of 1 mile per hour for 5 hours on Saturday. He hiked an average speed of 2 miles per hour for 3 hours on Sunday.Which explanation correctly tells how to calculate the total number of miles that Cody hiked in two days?A.Step 1: Multiply 1 × 5.Step 2: Multiply 2 × 3.Step 3: Add the two products.B.Step 1: Multiply 1 × 5.Step 2: Multiply 2 × 3.Step 3: Subtract the two products.C.Step 1: Divide 1 ÷ 5.Step 2: Divide 2 ÷ 3.Step 3: Add the two quotients.D.Step 1: Divide 1 ÷ 5.Step 2: Divide 2 ÷ 3.Step 3: Subtract the two quotients.
Elizabeth gave 13% of the cost as a tip to the delivery person who delivered her car after service at a cost of $294. What will be the total cost with tip to the nearest cent?
Please help!! Need to know ASAP
What is the slope of a line that passes through points (8,4) and (5,3)

Suppose that weekly income of migrant workers doing agricultural labor in Florida has a distribution with a mean of $520 and a standard deviation of $90. A researcher randomly selected a sample of 100 migrant workers. What is the probability that sample mean is less than $500

Answers

Answer:

$z = (500-520)/((90)/(√(100)))= -2.22$

And we can find this probability using the normal standard distribution and we got:

$P(z<-2.22) =0.0132$

Step-by-step explanation:

For this case we have the foolowing parameters given:

$\mu = 520$ represent the mean

$\sigma =90$ represent the standard deviation

$n = 100$ the sample size selected

And for this case since the sample size is large enough (n>30) we can apply the central limit theorem and the distribution for the sample mean would be given by:

$\bar X \sim N(\mu , (\sigma)/(√(n)))$

And we want to find this probability:

$P(\bar X <500)$

We can use the z score formula given by:

$z = (500-520)/((90)/(√(100)))= -2.22$

And we can find this probability using the normal standard distribution and we got:

$P(z<-2.22) =0.0132$

Liam is a rewards member at a local restaurant. He can buy four tacos at regular price and get 5.50 off of his purchase. Zachary found a coupon to buy three tacos at regular price and get 6.50 off his total. What would the taco price x need to be in order for Liam and Zachary to spend the same amount?

Answers

Liam can buy 4 tacos at regular price and get 5.50 off of his purchase while Zachary can buy 3 tacos at regular price and get 6.50 off his total.

There is no price of the taco that makes that both of them spend the same.

Liam and Zachary buy tacos at the same place. Let "x" be the price of each taco and "y" be the total amount spent.

Liam can buy 4 tacos at regular price and get 5.50 off of his purchase.

We can represent the situation through the following linear equation.

y = 4x - 5.50 [1]

Zachary found a coupon to buy three tacos at regular price and get 6.50 off his total.

We can represent the situation through the following linear equation.

y = 3x - 6.50 [2]

We want to know the prices of the taco so that both of them spend the same amount.

We calculate it making [1] equal to [2].

4x - 5.50 = 3x - 6.50

4x - 3x = -6.50 + 5.50

x = -1.00

The taco would have cost -1.00 for both of them to spend the same. Since in reality, this is unlikely, we can say that there is no price of the taco that makes that both of them spend the same.

Liam can buy 4 tacos at regular price and get 5.50 off of his purchase while Zachary can buy 3 tacos at regular price and get 6.50 off his total.

There is no price of the taco that makes that both of them spend the same.

Learn more about linear equations here: brainly.com/question/2263981

Based on the sample results, about what proportion of the population would you expect to prefer Merchant D?A. about 0.03

B. about 0.30

C. about 0.12

D. about 0.60

Answers

Answer

C. About 0.12

Step-by-step explanation:

I got it right on the test/quiz.

Help i have to turn this in 3 min someone????

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Answer:

Step-by-step explanation:

Gary took 7 hours to mow 4 lawns, then at that rate, how many lawns could be mowed in 35 hours. using a double number line

Answers

Answer: 20 lawns

Step-by-step explanation:

35÷7=5

5×4=20

I need help please it’s due today I forgot how to do this :(

Answers

Answer:

Samantha payed 12.71$ for her purchase.

Step-by-step explanation:

I may have misunderstood the question, but it looks like you can use a calculator for this!

6.19 + 2.85 + 2.29 + 1.38 =

12.71

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Write the prime factorization of 20 using exponents

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Help please! I’ll give brainliest!

The board of a large company is made up of 7 women and 9 men. 6 of them will go as a delegation to a national conference. a) How many delegations are possible? b) How many of these delegations have all men? c) How many of these delegations have at least one woman?