Mathematics College

Please help!!!!!!!!!!!!

Answers

Answer 1

Answer:

the answer is c

Answer 2

Answer:

Step-by-step explanation:

make them improper fractions and add them later when you get your answer make it to a proper fraction

Related Questions

A student bought a calculator and a textbook for a course in algebra. He told his friend that the total cost was $115 (without tax) and that the calculator cost $20 more than four times the cost of the textbook. What was the cost of each item? Let x= the cost of a calculator and y= the cost of the textbook. The corresponding modeling system is {x+y=115x=4y+20. Solve the system by using the method of substitution.

Answers

Answer:

X=$96

Y=$19

Step-by-step explanation:

x=4y+20

X+Y=$115

4Y+20+Y=$115

5Y+20=$115

-20 -20

5Y=$95

/5 /5

Y=$19

X=4 x $19 + $20

X=$76+$20

X=$96

In linear equation, cost of calculator = $96 , cost of textbook = $19 is the cost of each item .

What are instances of linear equations?

Ax+By=C represents a two-variable linear equation in its standard form. A standard form linear equation is, for instance, 2x+3y=5.Finding both intercepts of an equation in this form is rather simple (x and y).When resolving systems of two linear equations, this form is also incredibly helpful.

let cost of calculator = x

cost of textbook = y

x=4y+20 .................(1)

X+Y= 115 .................(2)

put value of equation 1 in 2

4Y+20+Y= 115

5Y+20= 115

5Y = 115 - 20

5Y = 95

Y = 95/5

Y = 19

Put value of y in equation 1

X=4 x 19 + 20

X= 76+ 20

X= 96

cost of calculator = 96

cost of textbook = 19

Learn more about linear equation

brainly.com/question/11897796

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HELP IM TIMED. ILL MARK BRAINLIEST!

Answers

Answer:

Step-by-step explanation:

Answer:

Step-by-step explanation:

1. If CA = 12 cm, what is the measure of ER?
1CD
CD

Answers

Answer:

[tex]ER = 12cm[/tex]

Step-by-step explanation:

Given

See attachment for the given shape

Required

Length of ER

The given shape is a parallelogram and the opposite sides are: CA and ER

Given that:

[tex]CA= 12cm[/tex]

We have:

[tex]CA = ER[/tex] --- opposite sides of a parallelogram

So:

[tex]ER = 12cm[/tex]

Write the equation of the circle with the given information.
Center: (5, -13)
Radius: 11

Answers

Answer:

(x - 5)² + (y + 13)² = 121

Step-by-step explanation:

The equation of a circle in standard form is

(x - h)² + (y - k)² = r²

where (h, k) are the coordinates of the centre and r is the radius

Here (h, k ) = (5, - 13 ) and r = 11 , then

(x - 5)² + (y - (- 13))² = 11² , that is

(x - 5)² + (y + 13)² = 121

In the figure below, find the mZ6, in degrees, if m2 = 75°?
87
413
50° 2
1
56
PLEASE HELPP

Answers

Answer:

75 degrees

Step-by-step explanation:

2 and 4 are vertical angles so 4 is 75.

4 and 6 are alternate exterior angles so have same value.

6 is 75 degrees.

Evaluate the following equation for the given x value. Round your answer to
the nearest hundredth. *
у
600(0.732)"; x = 3

Answers

Answer:

585856859686

Step-by-step explanation:

546786676

P = 3T squared work out the value of p when T = 10

Answers

Answer:

P=300

Step-by-step explanation:

P=3T squared

T=10

P=?

P= 3×(10×10)

=3×100

=300

What is the probability that a point chosen at random is in the blue region?

Answers

Answer:

Well It would about 1/10000000 if your talking about all colors, but its not specified how many blue regions other colored regions there are so I cant tell you without knowing.

Step-by-step explanation:

Just Take the amount of regions then put it under the amount of Blue regions there are then look up on a browser, Ex: What is 2/3 into a percent: 66.6 percent, And you have your answer :)

Answer:

15/17

Step-by-step explanation:

Answer in correct standard form

Answers

It’s 746 and I used a calculator to do it

Select the best answer for the question.
7. There are 250 mL of D5W infusing at 33 gtt/
min on IV tubing calibrated at 10 gtt/mL. What is the
infusion time?
O A. 1 hour and 16 minutes
OB. 1.5 hours
O C. 1 hour
O D. 2 hours
Mark for review (Will be highlighted on the review page)
<< Previous Question
Next Question >>
FULL
non

Answers

Answer:

A. 1 hour and 16 minutes

Step-by-step explanation:

There are 250 mL of D5W infusing at 33 gtt/min on IV tubing calibrated at 10 gtt/mL. Calculate the infusion time.

select "No IV pump"

volume = 250 mL

rate = 33 gtt/min

calibration = 10 gtt/mL

Actual formula:

250 /( 33 gtt/min

10x 60)= 1.26 Hours

0.26 x 60 = 16 minutes

So 1.26 Hours = 1 Hour & 16 minutes

hope this will help you

Students applying to law school must take the LSAT exam. Since competition for acceptance is stiff, many students take a course that is advertised to boost scores on the LSAT. The agency that teaches the course claims the course is an effective way to raise scores on the LSAT. To test this claim, a group of students are given the LSAT and their scores are recorded. They then attend the course for 5 wecks and retake the exam. Their scores are recorded again. The pre and post test scores are saved here (for Minitab 19) or here (for Minitab 18).
a. Are the samples independent or dependent? Explain.
b. What are the appropriate null and alternative hypotheses for testing the claim that the course is an effective way to raise scores on the LSAT?
c. What Minitab procedure are you going to use to test the hypotheses formulated above?
d. Create the probability plot necessary to validate the procedure chosen above. B C14 C15 non 100 m Ennish finited States)

Answers

Answer:

a) Dependent

b) H0: µd = 0

Ha: µd > 0

c) Stat --> Basic Statistics ----> Paired t. then select samples 1 , 2 to get the required output

d) Not enough data

Step-by-step explanation:

Using values found in MINITAB 19

a) The samples are dependent and this is because the title of the test is the same ( i.e. A group of students given the LSAT )

b) Appropriate hypothesis

H0: µd = 0

Ha: µd > 0

c) The Minitab procedure to be used to test the hypothesis is

click on Stat --> Basic Statistics ----> Paired t. then select samples 1 , 2 to get the required output

d) Not enough data to create a probability plot

Plz help!!
Write the equation that represents the graph shown.

Answers

y=-4x+2
.....................................

Four subtracted from two times a number is 48. What is the number?

Answers

Answer:

Step-by-step explanation:

n*2 - 4 = 48

What is the degree of this polynomial below ?
2x^5 + 4x^3 -3x^8

Answers

Answer:

Step-by-step explanation:

the degree is the highest exponent value

The dimensions of a patio are shown above what is the area in square feet of the patio?

Answers

Answer:

uhh the picture is sideways .

Answer:

it is 10x + 2

Step-by-step explanation:

help please i’m not sure what 17, 18, 19, and 20 are

Answers

Answer:

17. 25 [tex]in^2[/tex]

18. 53 [tex]m^2[/tex]

19. 21.6 [tex]cm^2[/tex]

20. 20.8 [tex]km^2[/tex]

Step-by-step explanation:

The area of a parallelogram is simply the base multiplied by the height.

17.

Base = 5 in

Height = 5 in

Area = Base * Height

Area = 5 * 5

Area = 25 [tex]in^2[/tex]

18.

Base = 10 m

Height = 5.3 m

Area = Base * Height

Area = 10 * 5.3

Area = 53 [tex]m^2[/tex]

19.

Base = 5.4 cm

Height = 4 cm

Area = Base * Height

Area = 5.4 * 4

Area = 21.6 [tex]cm^2[/tex]

20.

Base = 5.2 km

Height = 4 km

Area = Base * Height

Area = 5.2 * 4

Area = 20.8 [tex]km^2[/tex]

Kaila wants to borrow $175,000 for her mortgage.Timberwolf Bank offers a 15-year mortgage at an APR of 4.5%.

Answers

Answer:

At the end of the mortgage, $ 293,125 will have been paid.

Step-by-step explanation:

Given that Kaila wants to borrow $ 175,000 for her mortgage, and Timberwolf Bank offers a 15-year mortgage at an APR of 4.5%, to determine the amount to be repaid after the end of the mortgage, the following calculation must be performed:

175,000 x (1 + 15 x 4.5 / 100) = X

175,000 x (1 + 67.5 / 100) = X

175,000 x (1 + 0.675) = X

175,000 x 1,675 = X

293.125 = X

Therefore, at the end of the mortgage, $ 293,125 will have been paid.

8
Determine the area
of the shaded
region.
2 ft
7.6.4

Answers

Answer:

3.44 ft ^2

Step-by-step explanation:

the box area is 4x4 =16

the circle is 4π = 12.57

16-12.57 = 3.46 this is rounded so 3.44 would work too

Use the work below to answer the following questions.
-4+ 7(1-3m)
-4 + 7 - 21m
-4 – 14m

Answers

Answer:

-54

Step-by-step explanation:

PLEASE HELP MEEEEE!!

Answers

Answer:

2/6

3/9

4/12

Step-by-step explanation:

Answer:

2, 3, 4

Step-by-step explanation:

What is Limit of StartFraction x minus 1 Over x squared minus 1 EndFraction as x approaches negative 1?

Answers

Answer:

Step-by-step explanation: :)

⚠️ Urgent PLS HELP !!!
find the value of x.

Answers

Answer:

x = 14.5

Step-by-step explanation:

This is a supplementary angle, meaning the sum of the angles is 180°.

We can find the value of x by combining like terms.

5x - 6 + 7x + 12 = 180.

5x and 7x are alike.

5x + 7x = 12x.

-6 + 12 = 6.

The final equation is 12x + 6 = 180.

We can solve this by subtracting 6 from 180.

180 - 6 = 174.

12x = 174

Lastly, we divide 174 by 12.

174 / 12 = 14.5

Therefore, x is equal to 14.5

5. In order to figure out who will go first in a game, your friend asks you to
pick a number between 1 and 25.
a. What are the possible outcomes?
b. What are the favorable outcomes of choosing an even number?
c. What are the favorable outcomes of choosing a
number less than 20?

Answers

Answer:

a. - Any number 1-25

b. - 12/25

c. - 20/25

HELP PLEASE EDCITE !!!!

Answers

Answer:

between 30 and 60

Step-by-step explanation:

I need help on what to do

Answers

here’s a cheat sheet on how i remember these. if it’s x3+y3 it’s x+y(x2-xy +y2)
if it’s x3-y3 its (x-y)(x2+xy+y2)

Factorise the following completely: (4 marks)

a)a) 81

Answers

Answer:

Learn the factors of 92, and the factors of 93, and the factors of 94.All three of these numbers are composite numbers

Factors of 81: 1, 3, 9, 27, 81. Prime factorization: 81 = 3 x 3 x 3 x 3 which can also be written 3⁴.

Solve the following formula for t.
W = C + Crt

Answers

Answer:

(W-C)/Cr=t

Step-by-step explanation:

Move the C to the left side to make W-C=Crt

Divide by Cr

(W-C)/Cr=t

If a 2:1 transformer has 220 vac input a voltage test at the primary winding should produce a meter reading of

Answers

Answer:

an awnser is an inut example of salt or sugar so it should be around 450 volts

Step-by-step explanation:

thats its capacity

Five metal cubes with sides of 18 cm are melted and casted into a spherical ball. Find the volume of the sphere that is formed.

Answers

Answer:

29160cm³

Step-by-step explanation:

(18*18*18) *5 = 29160

help me please!!!!! and thank you!

Answers

Answer:

After 5 minutes, the submarine is at 240 ft below sea level.

Step-by-step explanation:

-300 + 16z

After 5 minutes, z = 5.

-300 + 16(5) = -300 + 80 = -240

After 5 minutes, the submarine is at 240 ft below sea level.

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