Mathematics College

This is due before 11:59
Please help

Answers

Answer 1

Answer:

r = 1

Explanation:

7 - 1 = 6

2/3 = 4/6

5 - r = 4

r = 5 - 4

r = 1

(1, 1) (7, 5)

Related Questions

a motorbike has been marked down by 38% to $130000.what is the original price?

Answers

Answer:

49400

Step-by-step explanation:

Answer:

so 38 % of 130000 = 49,400

so now after loss it's original price will be 130000-49400(38%)

=$800600

Ann is mailing packages. Each small package costs her $2.10 to send. Each large package costs her $3.30. How much will it cost her to send 6 small packages
and 7 large packages?

Answers

Answer:

$35.70

Step-by-step explanation:

small package: 2.10×6=12.60

large package: 3.30×7=23.10

total: 23.10+12.60=35.70

Function g is a transformation of the parent sine function such that g(x) = sin(x - pi) - 2. which graph represents function g?

(answer choices in the picture)

Answers

The graph of the function g is graph (c)

How to determine the graph of function g?

The function g is given as:

g(x) = sin(x - pi) - 2

The transformation of the parent function that gives the function g is:

Translate the parent function to the right by pi unitsTranslate the parent function downward by 2 units

Using the above highlight as a guide, the graph of the function g is graph (c)

Read more about function transformation at:

https://brainly.com/question/26092237

Answer:

its graph c, i got it correct on endgenuity

Step-by-step explanation:

please help asap
photo attached
choices are
A. -8
B. -6
C. 0
D. 22

Answers

I think it is b!!!!!!

“Snoqualmie” is a name shared by a waterfall and a tribe of Native Americans. In a study of the cultural importance of the waterfall, two groups of the Snoqualmie tribe were randomly surveyed. One group consisted of Snoqualmie members living less than 25 miles from the waterfall. Another group consisted of Snoqualmie members living more than 25 miles from the waterfall. The researchers asked each member to rate the cultural importance of the waterfall as low, medium, or high. Data from the study are presented in the following table.

Answers

Answer: E ( (17)(50)/88 )

Step-by-step explanation:

(Row total * column total) / table total

solve x + 1 > 3. graph the solution. can someone help me out??

Answers

Answer:

x>2

Step-by-step explanation:

x+1>3

x>3-1

x>2

I hope this helps

I will vote Brainliest to whoever gets it right.
(It's not 2)

4 = a - 6

Answers

Answer:

its 10

Step-by-step explanation:

add the numbers, 4 and 6 where you'll get 10

The steps to simplify the expression 5÷1 over 100 times-0.7 times -20 oh shown below with one missing step which is the missing step

Answers

Answer:

i did it 4 times and the answer is D

Step-by-step explanation:

Answer:

Option D) is Correct

Step-by-step explanation:

I took the test on T4L and got it right.

¿Cual es el diámetro del círculo que se puede trazar con un compás cuyo brazos miden 10 cm y forman un ángulo 34?

Answers

Answer:

Sorry that it is in english.

Step-by-step explanation:

The arms of the compass mesure the radius.

[tex]r=10\\2r=diamater (d)\\2*10=d\\20=d[/tex]

The owner of Showtime Movie Theaters, Inc., used multiple regression analysis to predict gross revenue (y) as a function of television advertising (x1) and newspaper advertising (x2).

Weekly Gross Revenue Television Advertising Newspaper Advertising
() () ()
97 5.0 2.5
90 2.0 2.0
96 5.0 2.5
93 3.5 2.5
95 3.0 4.3
95 4.5 2.3
94 2.5 5.2
94 3.0 2.5

The estimated regression equation was:_______

Answers

Answer:

ŷ = 1.85057X1 + 0.9688X2 + 84.77516

Step-by-step explanation:

Given the data:

Weekly Gross Revenue (Y) :

Television Advertising (X1) :

3.5

4.5

2.5

Newspaper Advertising (X2) :

2.5

4.3

2.3

5.2

2.5

The regression equation obtained using a multiple regression calculator is :

ŷ = 1.85057X1 + 0.9688X2 + 84.77516

x1 and x2 are the predictor variables

y is the predicted variable (Weekly Gross Revenue).

Slope x1 = 1.85057

Slope x2 = 0.9688

Intercept = 84.77516

Find the difference: (6a + 6) - (3x - 2) - (2a + 4)

Answers

Answer:

4 a − 3 x + 4

Step-by-step explanation:

I just simplified everything together to get this answer.

Hope that this helped! :)

Have a great rest of your day/night!

Please thank me on my profile if this answer has helped you!

A student researcher compares the ages of cars owned by students and cars owned by faculty at a local state college. A sample of 263 cars owned by students had an average age of 7.25 years. A sample of 291 cars owned by faculty had an average age of 7.12 years. Assume that the population standard deviation for cars owned by students is 3.77 years, while the population standard deviation for cars owned by faculty is 2.99 years. Determine the 90% confidence interval for the difference between the true mean ages for cars owned by students and faculty. Step 1 of 3: Find the point estimate for the true difference between the population means.

Answers

Answer:

The point estimate for the true difference between the population means is 0.13.

The 90% confidence interval for the difference between the true mean ages for cars owned by students and faculty is between -0.35 years and 0.61 years.

Step-by-step explanation:

To solve this question, before building the confidence interval, we need to understand the central limit theorem and subtraction between normal variables.

Central Limit Theorem

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]s = \frac{\sigma}{\sqrt{n}}[/tex].

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

Subtraction between normal variables:

When we subtract two normal variables, the mean is the subtraction of the means while the standard deviation is the square root of the sum of the variances.

A sample of 263 cars owned by students had an average age of 7.25 years. The population standard deviation for cars owned by students is 3.77 years.

This means that:

[tex]\mu_s = 7.25, \sigma_s = 3.77, n = 263, s_s = \frac{3.77}{\sqrt{263}} = 0.2325[/tex]

A sample of 291 cars owned by faculty had an average age of 7.12 years. The population standard deviation for cars owned by faculty is 2.99 years.

This means that:

[tex]\mu_f = 7.12, \sigma_f = 2.99, n = 291, s_f = \frac{2.99}{\sqrt{291}} = 0.1753[/tex]

Difference between the true mean ages for cars owned by students and faculty.

Distribution s - f. So

[tex]\mu = \mu_s - \mu_f = 7.25 - 7.12 = 0.13[/tex]

This is also the point estimate for the true difference between the population means.

[tex]s = \sqrt{s_s^2+s_f^2} = \sqrt{0.2325^2+0.1753^2} = 0.2912[/tex]

90% confidence interval for the difference:

We have that to find our [tex]\alpha[/tex] level, that is the subtraction of 1 by the confidence interval divided by 2. So:

[tex]\alpha = \frac{1 - 0.9}{2} = 0.05[/tex]

Now, we have to find z in the Ztable as such z has a pvalue of [tex]1 - \alpha[/tex].

That is z with a pvalue of [tex]1 - 0.05 = 0.95[/tex], so Z = 1.645.

Now, find the margin of error M as such

[tex]M = zs = 1.645*0.2912 = 0.48[/tex]

The lower end of the interval is the sample mean subtracted by M. So it is 0.13 - 0.48 = -0.35 years

The upper end of the interval is the sample mean added to M. So it is 0.13 + 0.48 = 0.61 years.

The 90% confidence interval for the difference between the true mean ages for cars owned by students and faculty is between -0.35 years and 0.61 years.

For whole numbers between 1 and 1001, inclusive, let m be the sum of odd numbers and n be the sum of even numbers. What is the value of m−n?

Answers

Answer:

m - n = 501

Step-by-step explanation:

Remark

The first thing you have to do is find the number of odd and even numbers. This is where you have to be careful because there is a danger of being out by one.

equation

l = a + (n - 1)*d

Solution even

l = 1000

a = 2

d = 2

1000 = 2 + (n - 1)*2

998/2 = (n - 1) * 2 / 2

499 = n - 1

n = 500

Solution odd

l = 1001

a = 1

d = 2

1001 = 1 + (n - 1)*2

1000 = (n - 1)*2

1000/2 = (n - 1)2/2

500 = n - 1

501 = n

Sum Even of even numbers from 1 to 1001

Givens

a = 2

n = 500

l = 1000

Equation

Sum = (a + l ) * n / 2

Solution

Sum = (2 + 1000)*500/2

Sum = 1002 * 250

Sum = 250500

Sum of Odd numbers from 1 to 1001

a = 1

l = 1001

n = 501

Equation

sum = (a + l)*n/2

sum = (1 + 1001) * 501

sum = (1002)*501 / 2

Sum = 251001

Answer

m - n = 251001 - 250500 = 501

Justin recently drove to visit his parents who live 300 miles away. On his way there his average speed was 11 miles per hour faster than on his way home (he ran into some bad weather). If Justin spent a total of 10 hours driving, find the two rates.

Answers

Answer:

x=1

Step-by-step explanation:

Help and no links plzz

Answers

Answer:

Step-by-step explanation:

2 1/2 = 5/2

(5/2)/(1/8) = 20

Find the median of the data in the dot plot below.

Answers

Answer:

Step-by-step explanation:

41 cause its the middle

For the right triangles below, find the exact values of the side lengths b and a. If necessary, write your responses in simplified radical form. 300 Х X 5 ? 459 5 4= 45° 60 3

Answers

Answer:

who knows

Step-by-step explanation:

HELP ITS TIMED WILL GIVE BRAINLYIST

Answers

Answer:

Step-by-step explanation:

Given: RT ≅ TV and ST ≅ TU
Prove: RSVU is a parallelogram.

Quadrilateral R S V U is shown. Diagonals are drawn from point R to point V and from point S to point U and intersect at point T. The lengths of R T and T V are congruent. The lengths of U T and T S are congruent.

Statements

Reasons
1. RT ≅ TV;
ST ≅ TU 1. given
2. ∠RTS and ∠VTU are vert. ∠s;
∠RTU and ∠VTS are vert. ∠s 2. definition of vertical angles
3. ∠RTS ≅ ∠VTU;
∠RTU ≅ ∠VTS 3. vertical angles are congruent
4. ? 4. SAS congruency theorem
5. ∠VRS ≅ ∠RVU; ∠USR ≅ ∠SUV;
∠VRU ≅ ∠RVS; ∠RUS ≅ ∠USV 5. CPCTC
6. ∠VRS and ∠RVU, ∠USR and ∠SUV, ∠VRU and ∠RVS, ∠RUS and ∠USV are each a pair of alternate interior angles 6. definition of alternate interior angles
7. RS ∥ UV and RU ∥ SV 7. converse of the parallelogram diagonal theorem
8. RSVU is a parallelogram 8. definition of parallelogram
What is the missing statement in step 4?

△RTS ≅ △VTU and △RTU ≅ △VTS
△RTS ≅ △RVS and △RTU ≅ △STV
△VRS ≅ △VRU and △USR ≅ △USV
△VUR ≅ △VUS and △UVS ≅ △SRU

Answers

Answer:

△RTS ≅ △VTU and △RTU ≅ △VTS should be your answer :)

Answer:

Step-by-step explanation:

Dmitri wants to cover the top and sides of this box with glass tiles that are 1 cm square. How many tiles
will he need?
8 cm
20 cm
Dmitri will need
18 cm
glass tiles.

Answers

9514 1404 393

Answer:

968

Step-by-step explanation:

The area of the top and sides is given by the formula ...

A = LW +2H(L +W)

A = (20 cm)(18 cm) +2(8 cm)(20 cm +18 cm)

A = (360 +16(38)) cm² = 968 cm²

Since the tiles are 1 cm², 968 tiles are needed.

CAN SOMEONE PLZ ANSWER THIS ITS DUE AT 11:59 APRIL 11 2021 AND ILL MARK U BRAINLIST

ITS ON THAT PICTURE PLZ

Answers

Answer:

C. 586.2 cm²

Step-by-step explanation:

Area of the figure = area of triangle + area of rectangle + area of semicircle

= (½*b*h) + (L*W) + ½(πr²)

Where,

b = 18 cm

h = 7 cm

L = 22 cm

W = 18 cm

π = 3.14

r = ½(18) = 9 cm

Substitute

Area = (½*18*7) + (22*18) + ½(3.14*9²)

Area = 63 + 396 + 127.17

Area = 586.17 ≈ 586.2 cm²

The width of a rectangle is 2 3/8 inches. The rectangle is 1 3/4 inches longer than it is wide Find the Length of the rectangle and preimeter of the rectangle

Answers

Answer:

We need to find length and width. To find two unknowns we need two equations.

P = 2L + 2W = 34

L = W + 3

34 = 2(W + 3) + 2W

34 = 2W + 6 + 2W

28 = 4W

W = 7

L = 7 + 3 = 10

The length is 10 inches and the width is 7 inches.

Step-by-step explanation:

2(a+b)+ 4m(a+b) factor out the greatest common factor

Answers

Step-by-step explanation:

Find the Greatest Common Factor (GCF).

[tex]gcf = 2(a + b)[/tex]

Factor out the GCF.

[tex]2(a + b)( \frac{2(a + b)}{2(a + b)} + \frac{4m(a + b)}{2(a + b)} [/tex]

now, Simplify each term in parentheses.

[tex]2(a + b)(1 + 2m)[/tex]

hence, if we factor out the GCF (greatest common factor), we get the answer 2 (a + b) (1 + 2m).

The seventh-grade class supplied bags of snacks and beverages for the school dance. They supplied 50 more beverages than bags of snacks. The dance was supplied with a total of 400 items. How many of each were supplied.

A) Define the variables.

B) Write a systems of equations for the situation.

C) Graph the system.

Answers

Answer:

Step-by-step explanation:

Hope this help and have a nice day

Use the remainder theorem and synthetic division to find f(k) for the given value of k.

Answers

Answer:

Step-by-step explanation:

Given that,

[tex]f(x) =-x^3-8x^2-15x+3[/tex]

We need to find the value of f(x) when k = -5

Put x = -5 in th given function.

So,

[tex]f(-5) =-(-5)^3-8(-5)^2-15(-5)+3\\\\=3[/tex]

Hence, the value of the given function is equal to 3.

which of the following statements are true of the discriminant?

Answers

Answer:

A,B,C

Step-by-step explanation:

The first three which is A, B, and C

sin 0
4. Find tan0 .
A.
B.
C.
D.

Answers

Answer:

Step-by-step explanation:

Answer:

D. 9/40 would be the answer.

Step-by-step explanation:

formula

sinQ= opp/hyp (9/41)

TanQ= opp/adj (which mean 9 /40)

Parallelogram MNPQ was dilated to create parallelogram M'N'P'Q'.

On a coordinate plane, 2 parallelograms are shown. Parallelogram M N P Q has points (2, negative 2), (4, negative 2), (3, negative 3), and (1, negative 3). Parallelogram M prime N prime P prime Q prime has points (5, negative 5), (10, negative 5), (8, negative 7), and (3, negative 7).

Which statements are true about the parallelograms? Select three options.

The length of side MN is 2 units.
The length of side M'N' is 5 units.
The image is smaller than the pre-image.
Sides MQ and M'Q' both have the same slope, 1.
The scale factor is Two-fifths.

Answers

Answer:

134

Step-by-step explanation:

yeah no

The table gives information about the heights of 35 girls.
Height (h metres)
Frequency
1.30 11
1.40 9
1.50 7
1.60 6
1.70 2.
2
(a) Find the class interval that contains the median.
(b) Work out an estimate for the mean height.

Answers

Answer:

use ratio method but you start with division

The graph represents the number y of attendees to a market research conference after x years.
Write an exponential function that represents the number of attendees to the conference.

Answers

Ok, I hope im right. (Others correct me if im not. But when I worked out this problem I got y is approximatly 4,882 attendees after 6 years.

Gathering info from the graph I created a table

(0,20) , (1,30) , (2,45), ...

I found the difference between the points listed. For example, 30÷20 is 1.5. So, each point is multiplied times 1.5 to continue the sequence.

Use the equation: y=a(1+r)^t

Remember what each variable stands for. That way you can plug in the correct information

Continuing..

y=a(1+r)^t

y=20(1+1.5)^t ; combine like terms

y=20(2.5)^t

b) Plug in the # of years. 6 in our case, everywhere you see a t

y=20(2.5)^6

y is approximately equal to 4882.8125

Round because we can only have whole numbers. we're talking about people.

I hope I got this right. But, if not, I tried

Other Questions

Find the value of each variable. Round to the nearest tenth. How does the measure of angle x compare to the measure of angle z? Justify. oWhat is the value of x in the equation 7x+2y= 48, when y = 3? does anyone know the answer??? ill mark brainlist Help I will give out Matches=from Chemical energy to light energy+heat energy what is 2d/9 and d=3 Ratn es plisemica o monosmica Find the value of x.89946X In a _____ molecules move just enough to stay close together but not to stick PLZZZ HELP ME ASAP!!! :( The minimum amount of total quality costs is achieved when the: A. marginal voluntary expenditures are less than the marginal savings on failure costs. B. marginal voluntary expenditures equal the marginal savings on failure costs. C. marginal voluntary expenditures exceed marginal failure costs. D. none of the other answers are correct. To establish relationships among ideas in argumentative writing, an author should create organization among:A. claims and counterclaimsB. reasons and evidenceC. style and toneD. Both a. and b. Which term refers to the time before Columbus arrived in the Americas?A. Columbian cultureB. Pre-Columbian O C. Post-ColumbianO D. Columbian diversity Which line has the same slope as the lone passing through (-4,-1) and (-1,-7)1) 6x+3y=52)y=-1/2x-73)y=-2 2) AABC is an isosceles triangle with Perpendicular lines create 90 degree angles.Perpendicular lines have opposite reciprocal slopes. How do social networks create cliques online?A.) They connect you with people who have similar opinions.B.) They connect you with people you already know and like.C.) They expose you to people with different views and new ideas.D.) They encourage you to block people you dont know or like. I have a question for us gals, is it hard for all of you when you try to get your crushes attention and he/she just keeps ignoring you to the point where you could just give up? need help now, i will. make u brainly Maren is a computer software engineer. Today, she worked from 6 am until noon. Then she ate lunch from noon until 1 p.m. After lunch, she worked another 4 hours. Noi counting lunch, how many hours did Maren work today? A 10 hours B 11 hours C 12 hours D 9 hours Find the measure of angle b. Show work to prove your answer.b/50 Last year, 85% of students participated in the school fundraiser. Using this data, what would be the BEST prediction of how many of the 320 students will participate in the fundraiser this year?

This is due before 11:59 Please help

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This is due before 11:59
Please help