Mathematics College

Evaluate the expression

Answers

Answer 1

Answer:

-15

Step-by-step explanation:

Answer 2

-15 hope this helped!!

Related Questions

Please help if you can. I will give you a brainliest !!

Answers

Answer:

its blurry I cant even see it

Step-by-step explanation:

gets paid 15 per hour what is the minumim number of hours that joseph must work per week to make $450 per moth? (1moth=4weeks)

Answers

Answer:

Minimum of 7 1/2 hours ( 7 hours, and 30 minutes )

Step-by-step explanation:

Rate = money / time

time = money / rate

_____________

1 month = 4 weeks

1 week = 7 days

1 day = 24 hours

1 hour = 60 minutes

_____________

$15 / 1 hour = 1 day / 24 hours = 1 week / 7 days = 1 month / 4 weeks = $450 / 1 month.

$15 / 1 hour / 1 week = $450 / 1 month

$15 / 1 hour / 1 week = $450 / 4 weeks

$15 / 1 hour / 1 week = $112.5 / 1 week

$15 / 1 hour = $112.5

112.5 / 15 = 7.5 hours.

PLEASEEEE!!!!! HELPPPPPPPPPPP

Answers

Answer:

what's your question I can't understand

Answer:

what's the question

Step-by-step explanation:

please write complete question

0.5 (x4 - 3) + 12
WILL MARK BRAINLEST PLEASEEE HURRYYYYY!!!!!!!!

Answers

0.5x^4+10.5 or 12.5 simplified is correct answer. Remove any grouping symbol such as brackets and parentheses by multiplying factors.

Use the exponent rule to remove grouping if the terms are containing exponents.

Combine the like terms by addition or subtraction.

Combine the constants.

Tickets numbered 1 to 20 are mixed up and then a ticket is drawn at random.
Find the probability that the ticket drawn has a number which is a multiple of 5:

Answers

Answer:

1/5

Step-by-step explanation:

4/20 is how many multiples of 5 are in the total out of 20. 4/20 simplified is 1/5

I need to know the explanation will mark Brainliest

Answers

Answer:

the value of x is 23

Step-by-step explanation:

plz mark brainly

Find the midpoint of the segment with the following endpoints.
(-4,-9) and (4, -1)

Answers

Answer:

[tex](0,-5)[/tex]

General Formulas and Concepts:

Pre-Alg

Order of Operations: BPEMDAS

Alg I

Midpoint Formula: [tex](\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})[/tex]

Step-by-step explanation:

Step 1: Define

Point (-4, -9)

Point (4, -1)

Step 2: Find midpoint

Substitute: [tex](\frac{-4+4}{2},\frac{-9-1}{2})[/tex]Add/Subtract: [tex](\frac{0}{2},\frac{-10}{2})[/tex]Divide: [tex](0,-5)[/tex]

During the winter months, heating bills can be expensive. A contractor claims that installing a new brand of insulation will considerably lower your heating bill (which was $205 last month). After conducting the test (assuming the data were provided). you find that the results are significant at the 5% level. You may also conclude: __________.a. the test would also be significant at the 10% level. b. the test would also be significant at the 1% level. c. both of the above. d. none of the above.

Answers

Answer:

The correct option is a

Step-by-step explanation:

Generally the null hypothesis is rejected (that the result is significant ) when the p-value is less that the the level of significance

Now from the question when the the level of significance was 5% the p-value was less than the level of significance so also when the level of significance is 10% the p-value will be less than the level of significance hence null hypothesis will also be rejected at this level(that is the result will also be significant at the level of significance )

Which expression is equivalent to 6x2 – 19x – 55?

Answers

Answer:

(6x + 11)(x – 5)

Step-by-step explanation:

Trust me!

What is the equation of the line that passes through the points (-6,2) and (4,-3)

Answers

Answer:

The equation is: 9x-y = 56

Step-by-step explanation:

Given two point: (x,y) = (-6,2)

(x,y) = (4,-3)

Now, to find the slope of the line:

Slope = y1-y2/x1-x2 => 2-4/-6-(-3) = -1/9

Then, the equation of the line passing through a point:

=> y-y1 = m(x-x1)

=> y-2 = -1/9(x-6)

=> 1(y-2) = -9(x-6)

=> y-2 = -9x+54

=> 9x-y = 56

An 8-quart jug of water costs $6.08. What is the price per cup?

Answers

Answer:

$0.19 cents

Step-by-step explanation:

First, find how many cups are in 8 quarts.

1 quart is 4 cups, so to find the number of cups, multiply 8 by 4:

8(4)

= 32 cups

Then, to find the price per cup, divide the cost by the number of cups:

6.08/32

= 0.19

So, the price per cup is $0.19 cents

Applicants to a psychology department have normally distributed GRE scores with a mean, LaTeX: \muÎ¼, of 544 and a standard deviation, LaTeX: \sigmaÏ, of 103. What percentage of applicants scored between 500 and 700? Round to the nearest percent.A. -24% B. 78% C. 2296 D. 24% E. 5%

Answers

Answer:

The probability is P(500 < X < 700 ) = 0.60044

Step-by-step explanation:

From the question we are told that

The mean is [tex]\mu = 544[/tex]

The standard deviation is [tex]\sigma = 103[/tex]

Generally the percentage of applicant that scored between 500 and 700 is mathematically represented as

[tex]P(500 < X < 700 ) = P(\frac{500 - 544}{103} < \frac{X - \mu }{\sigma } < \frac{700 - 544}{103} )[/tex]

[tex]\frac{X -\mu}{\sigma } = Z (The \ standardized \ value\ of \ X )[/tex]

[tex]P(500 < X < 700 ) = P(-0.4272 < Z < 1.5146 )[/tex]

=> [tex]P(500 < X < 700 ) = P( Z< 1.5146 ) - P ( Z < -0.4272 )[/tex]

Generally from the z-table, the area under the normal curve to the left corresponding to 1.5146 and -0.4272 is

P( Z< 1.5146 ) = 0.93506

P ( Z < -0.4272 ) = 0.33462

P(500 < X < 700 ) = 0.93506 - 0.33462

=> P(500 < X < 700 ) = 0.60044

Write a four digit whole number that is divisible by 2. Use a divisibility rule and explain how you know that your number is divisible by 2.

Answers

1,000 is divisible by two. i know this because if you divide it by two, you get a whole number. hope this helps?

2,024 is divisible by 2 because when you divide it it turns out as a whole number.

The factors of two numbers are given below: Number 1: 1, 3, 5, 7, 15, 21, 35, 105. Number 2: 1, 3, 7, 21, 49, 147. What is the greatest common factor of the numbers

Answers

Answer:

Step-by-step explanation:

they both have 21

Simplify the expression.

6(x+4)+1 =

Answers

Answer:

6x+25

Step-by-step explanation:

6(x+4)+1 =

Distribute

6x+24+1

Combine like terms

6x+25

6x+25 is your answer. Happy to help

What is the probability of getting one or fewer people with a chronic heart condition in a sample of 22 if 25% of the population in this age bracket?

Answers

The question is incomplete. The complete question is :

The National Center for Health Statistics reports that 25% of all Americans between the ages of 65 and 74 have a chronic heart condition. Suppose you live in a state where the environment is conducive to good health and low stress and you believe the conditions in your state promote healthy hearts. To investigate this theory, you conduct a random telephone survey of 25 persons 65 to 74 years of age in your state.

Suppose only one person in your survey has a chronic heart condition. What is the probability of getting one or fewer people with a chronic heart condition in a sample of 25 if 25% of the population in this age bracket has this health problem?

Solution :

Chronic heart disease is a condition where a person's heart have trouble to pump blood to the body. It develops over a period of time.

In the context, we can see from the figures from National Center for Health Statistics that the expected number of persons of age 65 - 74 years having a chronic heart disease is about

25 % of 25 = 6.25

Now by Poisson's ratio, the probability of choosing the sample where only one person having heart disease is 1.4%

Determine if the following vectors are orthogonal, parallel, or neither.
<2,5> and <-4, 10 >

Answers

Answer:

the are parallel to eachother

Please help me solve this i need help

Answers

Answer:

Step-by-step explanation:

It’s actually 18 not 21

What is the quotient of the division below? 96-3= O 13 O 23 O 31 o 32

Answers

Answer:

Step-by-step explanation:

please make me brainlist

I put D since I believe HL applies here but am not sure. Could anybody please help?

Answers

Answer: B) II and III

====================================================

Explanation:

Check out the diagram below.

On the left side shows ASA can be used to prove the triangles congruent. Note the color coding to see how the angles match up. Also note that the segment TR is between angles STR and SRT. The order is important because ASA is different from AAS.

Angle STR = Angle VTU because they are vertical angles

Angle SRT = Angle VUT since they are alternate interior angles. Note how SR is parallel to UV. If the lines weren't parallel, then the alternate interior angles would not be congruent.

We can use AAS because if we know two angles of a triangle, we can find the third angle. Despite the fact that something like RST looks like a right angle, we don't have enough info to say it is or not. The square angle marker is missing. So it could be 90 degrees, or it might be something like 89 degrees instead. We don't have enough info. So we cannot use HL.

AAA or AA is not a congruence theorem. It's a similarity theorem. So we cross this off the list.

need help please full question in image

Answers

the answer should be 23.5 hoped this helped :)

May y'all please help me

Answers

Answer:

2x^2 - 11x + 6

Step-by-step explanation:

2x^2 + 4x - 3 * (5x - 2)

Distribute -3 between the parentheses like so.

2x^2 + 4x - 15x + 6

And then add like terms 4x and 15x together.

2x^2 - 11x + 6

Determine whether the graph represents a function?
None are correct
The relation is a function
The relation is not a function

Answers

The relation is a function I believe so

3x^2+5x+2=0

Find what x is for both

Answers

Answer:

x = -2/3 and -1

Step-by-step explanation:

3x²+5x+2 = 0

3x²+3x+2x+2=0

3x(x+1) + 2(x+1) =0

(3x + 2) (x + 1) = 0

x = -2/3 and -1

Answer:

Exact form:

x = - 2/3, -1

Decimal Form:

x = -0.6repeated, -1

Step-by-step explanation:

Move all terms to the left side and set equal to zero. Then set each factor equal to zero.

In order to accumulate enough money for a down payment on a house, a couple deposits $589 per
month into an account paying 3% compounded monthly. If payments are made at the end of each period,
how much money will be in the account in 4 years?
Type the amount in the account: $
(Round to the nearest dollar.)

Answers

you have four years 1767 dollars in account

Please help needs to be rounded to the nearest hundredth

Answers

Answer: 0

Step-by-step explanation:

11 + 11= 22

22 is rounded to the nearest hundredth, which is not 100, so its 0

Simplify.
7 (x-1) -2 (x-1)

Answers

Answer: 5x-5

Step-by-step explanation:

7 (x-1) -2 (x-1)

7x-7-2x+2

Combine like terms:

7x-2x=5x

-7+2=-5

Answer simplified is 5x-5.

How are fractions, decimals, and percents related?

Answers

Answer:

yes bc they all have sum to do wit eachother

Step-by-step explanation:

hellpppppp please I will give brainliest

Answers

Answer:

y = 2x-2

Step-by-step explanation:

Answer:

C: y=2x-2

2x= slope

-2= y intercept

Step-by-step explanation:

it starts at -2 and the slope continues to go up 2 over right 1

3.4+(-7)-(-0.2)
PLZ HELP

Answers

Answer:

-3.8

Step-by-step explanation:

I used my calculator.

Answer:

-3.8

Step-by-step explanation:

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