need help with this question it’s a mastery grade!

Need Help With This Question Its A Mastery Grade!

Answers

Answer 1
I think the answer is that there was an increase plz mark as brainliest
Answer 2
Yes there would be an increase because 25%of 25 is 6 and 10%of 20 is 2. So there is an increase by 4 kids.

Related Questions

Plz help ASAP!! A surgical technique is performed on eight patients. You are told that there is an 80% chance of success. Find the probability that the surgery is successful for fewer than two patients. Please show your work. Hint: the answer is 0.000084.

Answers

Answer:

This is a fairly simple binomial distribution. We know it's binomial, because we're looking for a "fixed" number of patients, not the "first" like a geometric.

You can use your calculator:

binomcdf(n,p,Kr)

n=population, p=probability, Kr=number you're looking for

binomcdf(8,.8,1)

We have to do 1, not 2, because it says fewer than 2, which means 1.

                         = 8.448 x 10⁻⁵ = .00008448, which is approximately the answer given!

Which of the following represents the additive inverse of h?

Answers

Subtract ............

Answer:

B or -h

Step-by-step explanation:

i took the quiz

help me plz ill mark u brailiest

Answers

Answer:

The product of 21 and 18

Step-by-step explanation:

When you multiply the word is product

The product of 21 and 18

Answer:

the answer is H

Step-by-step explanation:

Joseph's company offers a reimbursement package of $0.45 per mile plus
$175 a year for maintenance. If x represents the number of miles, which
equation below models C the total amount of reimbursement the company
offers?

•A. C = 0.45 + 175x
•B. C = 0.45x + 175
•C. C = 45 + 175x
•D. C = 45x + 175

Answers

Answer:

B

Step-by-step explanation:

175 is the yearly cost which is the constant

The cost is related to the miles so that’s why they’re multiplied together

The total amount of reimbursement the company offers will be C = 0.45x + 175. Then the correct option is B.

What is a linear equation?

A connection between a number of variables results in a linear model when a graph is displayed. The variable will have a degree of one.

The linear equation is given as,

y = mx + c

Where m is the slope of the line and c is the y-intercept of the line.

Joseph's company offers a reimbursement package of $0.45 per mile plus $175 a year for maintenance.

Let 'x' be the number of miles and 'C' be the number total amount. Then the equation of the line is given as,

C = 0.45x + 175

The total amount of reimbursement the company offers will be C = 0.45x + 175. Then the correct option is B.

More about the linear equation link is given below.

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what is the equation for the graph shown below ??​

Answers

Answer:

d

Step-by-step explanation:

A fair six-sided die, with sides numbered 1 through 6, will be rolled a total of 15 times. Let x¯1 represent the average of the first ten rolls, and let x¯2 represent the average of the remaining five rolls. What is the mean μ(x¯1−x¯2) of the sampling distribution of the difference in sample means x¯1−x¯2 ?

A. 3.5/10 - 3.5/5 =-.35
B. 3.5-3.5=0
C. 10-5=5
D. 10(3.5)-5(3.5)=17.5
E. 6(10-5)=30

Answers

Answer:

option B

Step-by-step explanation:

[tex]P(x =x) [{\frac{1}{6} ;x =1,2,3...6][/tex]

[tex]E (x) = \frac{6+1}{2} =\frac{7}{2} =3.5\\\\E(x)=3.5[/tex]

Given random experiment of tossing of 6 sided dice is follow above distribution

Therefore, suppose x₁, x₂ ...x₁₀ are 10 independent and indentical random variable which represent first 10 rolls

Average of first 10 rows equals

[tex]\bar x_1 =\frac{ \sum ^{10}_{i=1}xi}{10}[/tex]

[tex]E(\bar x_1)=\frac{ \sum ^{10}_{i=1}E(x_1)}{10} \\\\=\frac{10(3.5)}{10} \\\\=3.5\\\\E(\bar x_1) = 3.5----(1)[/tex]

now suppose ,

x₁₁,x₁₂, ...x₁₅ are 5 independent and identical random variable which represent last 5 roll

average of last 5 roll is

[tex]E(\bar x_2)= \frac{ \sum ^{5}_{i=1}xi}{5} \\\\= \frac{5 \times(3.5)}{5} \\\\=3.5[/tex]

Therefore,[tex]\bar x_1 - \bar x_2[/tex]

3.5 - 3.5 = 0

The mean [tex]\mu(\bar{x_1}-\bar{x_2})[/tex]  of the sampling distribution of the difference in sample means [tex](\bar{x_1}-\bar{x_2})[/tex] is 0 and this can be determined by using the formula of the average mean.

Given:

A fair six-sided die, with sides numbered 1 through 6, will be rolled a total of 15 times.Let [tex]\bar {x_1}[/tex] represent the average of the first ten rolls, and let [tex]\bar {x_2}[/tex] represent the average of the remaining five rolls.

The average mean of the first ten rolls is given by the formula:

[tex]\rm E(\bar{x_1}) = \dfrac{\sum^{10}_{i=1}(x_1)}{10}[/tex]

Now, put the values of known terms in the above equation.

[tex]\rm E(\bar{x_1})=\dfrac{10\times 3.5}{10}[/tex]

[tex]\rm E(\bar{x_1})={3.5}[/tex]

The average mean of the remaining five rolls is given by the formula:

[tex]\rm E(\bar{x_2}) = \dfrac{\sum^{5}_{i=1}(x_i)}{5}[/tex]

Now, put the values of known terms in the above equation.

[tex]\rm E(\bar{x_1})=\dfrac{5\times 3.5}{5}[/tex]

[tex]\rm E(\bar{x_1})={3.5}[/tex]

Now, [tex](\bar{x_1}-\bar{x_2}) = 3.5 - 3.5 = 0[/tex].

The mean [tex]\mu(\bar{x_1}-\bar{x_2})[/tex]  of the sampling distribution of the difference in sample means [tex](\bar{x_1}-\bar{x_2})[/tex] is 0.

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PLEASE HELP. WILL GIVE 30 POINTS AND BRAINLIEST!!!!


In one school, a half of all students who like math like science as well. Also, in that school, a third of all students who like science also like math.
b)
In that school, what is the ratio of the number of students who like math to the number of students who like science?

Answers

Answer: Is there a total for how many kids like each? If there isn't than this is how I would solve it. For percentage purposes let's say there are 100 students. 50 like math, 50 like science. Half of the students who like math also like science, which means 75 percent of the school likes science. A third of students who like science also like math, and since 75 percent of the school of 100 children likes science, that would mean 1/3 of that is 25, which would mean 75 percentof all students like math. Hence the ratio, I believe, is 1 to 1.

Step-by-step explanation:

PLEASE GIVE BRAINLIEST

Answer:

well if you add the third of students to math and the third of students from science I think thats the answer

Step-by-step explanation:

You have a standard deck of cards. The deck has 52 total cards and contains 4 suits: hearts, clubs, diamonds, and spades. Each suit consists of cards numbered 2-10, a jack, a queen, a king, and an ace.

You select one card at random from the deck. Let A be the event that the randomly selected card is a diamond and let B be the event that the card is a king. Based on this information, answer the following questions.

Answers

Answer:

[tex]P(A) = \dfrac{1}{4}\\P(B) = \dfrac{1}{13}\\P(A \cap B) = \dfrac{1}{52}\\P(A/B) = \dfrac{1}{4}\\P(A/B) = P(A)\\[/tex]

A and B are not independent events.

Step-by-step explanation:

Total number of possibilities is 52 (Total number of cards in the deck).

Formula for probability of an event E can be observed as:

[tex]P(E) = \dfrac{\text{Number of favorable cases}}{\text {Total number of cases}}[/tex]

For event A, number of cases possible for a card to be diamond = 13

[tex]P(A) = \dfrac{13}{52} \\\Rightarrow P(A) = \dfrac{1}{4}[/tex]

For event B, number of cases possible for a card to be a king = 4

[tex]P(B) = \dfrac{4}{52} \\\Rightarrow P(B) = \dfrac{1}{13}[/tex]

For the event, [tex]A \cap B[/tex], the card is a king and diamond, only one case is possible.

Because there is only one card for king of diamond.

[tex]P(A \cap B) = \dfrac{1}{52}[/tex]

Formula for P(A/B):

[tex]P(A/B) = \dfrac{P(A \cap B)}{P(B)}[/tex]

[tex]\Rightarrow \dfrac{\dfrac{1}{52}}{\dfrac{1}{13}}\\\Rightarrow \dfrac{1}{4}[/tex]

Yes, P(A) is same as P(A/B).

Here, A and B are not independent events because they have a common case i.e. a king is there which is of diamond in the deck.

Answer:

1/4

1/13

1/52

Yes, events a and b are independent events

Quadrilateral ABCD is the result of a reflection of quadrilateral LMNO over the line. Which line segment in the image corresponds to NO in the pre-image? I want to say CD but not 100% sure. Only correct answers please. Very important. Working on it now​

Answers

Answer:

CD

Step-by-step explanation:

Reflection is a rigid transformation which always create a congruent image of the original image or pre-image.

If quadrilateral ABCD is the result of a reflection of quadrilateral LMNO over the line.

Then both the quadrilaterals are congruent.

To find the line segment in the image corresponds to NO in the pre-image, just check the order of the letters in the name of quadrilaterals.

Also, In reflection image and its pre-image are equidistant from the line of reflection

hence, CD is the line segment in the image corresponds to NO in the pre-image.

BRAINLIST THIS ANSWER

Solve the inequality and graph the solution on the line provided.
3x-9≥-21

Answers

Answer:

x is less than or equal to -10

Step-by-step explanation:

Solution of the given inequality 3x-9≥-21 is x ≥ -4

What is Linear inequalities?

In mathematics a linear inequality is an inequality which involves a linear function. A linear inequality contains one of the symbols of inequality

Given,

3x-9≥-21

Add both side by 9

3x ≥ -12

Divide both side by 3

x ≥ -4

Hence, the solution of the given inequality 3x-9≥-21 is x ≥ -4

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I really need help with this question, pls help!!

Answers

Answer:

Step-by-step explanation:

Here the average rate of change would be

                  f(6) - f(1)      162 - (-8)

a. r. of c. =  ----------- = ------------------ = 154/5 = 308/10 = 30.8 or 30 8/10

                      6-1                  5                     or  30 4/5

Below is the graph of a trigonometric function. It has a minimum point at (- 10.4, - 9.8) and a maximum point at (- 3.6, - 1.2) . What is the period of the function?

Answers

Answer:

13.6

Step-by-step explanation:

The period is double of the distance (on the x-axis) between the maximum and the minimum. In this case, the x-coordinate of the minimum is -10.4, the x-coordinate of the maximum is -3.6, the distance is -3.6 - (-10.4) = 6.8, and the period is 2*6.8 = 13.6

Answer:

Step-by-step explanation:

4.3 unit from by khan academy

Question 1 of 10
2 Points
Harry took out an 80/20 mortgage to buy a house costing $175,000. The first
(80%) mortgage has an interest rate of 4.75%, and the second (20%)
mortgage has an interest rate of 7.525%. Both the first mortgage and the
second mortgage are 30-year fixed-rate mortgages. What is his total
mortgage payment for this house?
A. $730.31
B. $975.63
C. $245.32
D. $805.87

Answers

Answer:

Its b got it correct

The total monthly mortgage payment for the house is $975.63

What is percentage?

A percentage is a number or ratio that can be expressed as a fraction of 100. A percentage is a number or ratio expressed as a fraction of 100. It is often denoted using the percent sign, "%", although the abbreviations "pct.", "pct" and sometimes "pc" are also used. A percentage is a dimensionless number; it has no unit of measurement.

here, we have,

The principle amount is $175000

80% of 175000 is =  = $140000

20% of 175000 is =  = $35000

Emi formula is :

p*r*(1-r)^n/(1-r)^n-1

For 1st part:

p = 140000

r = 4.75/12/100=0.00395

n = 360

Putting values in formula we get

= $729.508

For 2nd part:

p = 35000

r = 7.525/12/100=0.00627

n = 360

Putting values in formula we get

= $245.301

Adding both the monthly payments:

974.809 dollars

This is closest to option A.

So, option A is the answer.

And for 30 years the mortgage payment will be = 351226.80 dollars

Hence, The total monthly mortgage payment for the house is $975.63.

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Create a list of steps, in order, that will solve the following equation.

3(x+2)^2=48

Answers

Answer:

x= 2 and x= -6

Step-by-step explanation:

3(x+2)^2=48

1)   [3(x+2)^2]/3=48/3

2) (x+2)^2 = 16

3) √(x+2)^2 =+/-√16

4) x+2 = 4   and    x+2 = -4

5) x=2          and   x= - 6

Check:

3(x+2)^2=48

3(2+2)^2 = 48           and        3(-6+2)^2=48

48 = 48                                   48=48

PLEASE HELP ME I REALLY NEED IT

Answers

Answer:

y = 8x+0

Step-by-step explanation:

The slope is

m = (y2-y1)/(x2-x1)

   = (-8-0)/(-1-0)

   -8/-1

   8

The y intercept is 0 since it goes through (0,)

The slope intercept form of the equation is

y = mx+b

y = 8x+0

Answer: Y = 8x + 0 because when u subtract -8-0/-1-0 it is equal to -8/-1 = 8.

Please answer both questions in the image

Answers

Answer:

#1 is 1 to 4 #2 is 1 to 2

Step-by-step explanation:

Hope it helps

1. 4

2.2

Equation: y/x

Hope this helps, brainliest pls!

Please help with this question!!

Answers

5/8

A. Real number.  True, all rational numbers are real;  SELECT ME

B. Non-real; nope, it's real, so not non-real

C. Irrational; nope, it's a rational number, the ratio of integers

D. Rational.  Natural numbers on top and bottom, bottom not zero.   SELECT ME.

E. Integer; no, it's a fraction.

F. Whole; that's a non-negative integer, nope.

G. Natural, that's a non-zero whole number, nope.

Answer: A D

help me fill in the blanks pleasee

Answers

Answers and Step-by-step explanations:

Let's look at the first row:

cost = _______ + _______ * (monthly payment)

The first blank should be the "down payment" because this is the initial, constant value that is paid. The second blank should be the "number of months" because this way, when multiplied by the actual amount each payment is (monthly payment), then we get the total amount paid during those months.

So, we have:

cost = (down payment) + (number of months) * (monthly payment)

Now for the second row, we just plug in numbers and variables:

335 = 50 + 6 * p

Finally, we can solve for p:

335  = 50 + 6p

6p = 285

p = $47.50

Answer:

Cost = down payment + no. of monthly payments × monthly payment

335 = 50 + 6 × p

285 = 6p

p = 47.5

An aquarium in the shape of a rectangular prism has a bottom, no top, two square sides, and two sides
the same height as the square sides but twice their length. The total area of the five sides 15 2,592 in?.
Find the volume of the aquarium. Complete the explanation of your reasoning.
Let x represent the length and height of the square sides. Then the longer sides and the bottom measure
2x by x. The total area of the five sides, in terms of x, is A =____
So, the total area of the five sides,
A, is 2,592 in2. Solving for x we get x =____
The tank's volume is ____
in squared?

Answers

Answer:

volume = 11,664 units cubed

Step-by-step explanation:

2[tex]x^{2}[/tex] times 3 = bottom and sides

[tex]x^{2}[/tex] times 2 = ends

A = 6[tex]x^{2}[/tex] + 2[tex]x^{2}[/tex] = 8[tex]x^{2}[/tex]

2592 = A

2592/8 = 8[tex]x^{2}[/tex]/8

324 = [tex]x^{2}[/tex]

take square root of both sides

18 = x

so volume = length times width times height

2(18) times 18 times 18 = 11664

11664 units cubed

I will mark brainliest to first correct answer!

Answers

Answer:

C

Step-by-step explanation:

Answer:

B.

Step-by-step explanation:

SUPER EASY, NEED HELP
Solve for x:
3/2x−5/4=−7/6

Answers

3/2x-5/4=-7/6

x= 1/18

What single rigid transformation maps TriangleABC onto TriangleA'BC'?

dilation
reflection
rotation
translation

Answers

Answer:

The answer would be reflection.

Step-by-step explanation:

the answer is reflection because you would reflect it over the axis.

Answer:

Reflection would map ABC to A'B'C'

Step-by-step explanation:

keisha estimates 259 + 372 by rounding each number to the nearest 10 what is keisha estimate of the sum

Answers

Answer:

630

Step-by-step explanation:

260+370

This question is based on the rounding off rule. Therefore, Keisha estimate of the sum is 630.

Given:

Keisha estimates 259 + 372 by rounding each number to the nearest 10.

We need to determined the what is Keisha estimate of the sum.

According to the question,

By using the round- off rule as follows:

If the numbers are 5, 6, 7, 8, or 9, round the number up.

Example: 38 rounded to the nearest ten is 40. ...

If the number are  0, 1, 2, 3, or 4, round the number down.

Example: 33 rounded to the nearest ten is 30.

First we rounding off the 259,

From the first rule, 259 is round the number up.

Therefore, we get the value 260.

Now,rounding off the 372,

From the second rule, 372 is round the number down.

Therefore, we get the value 370.

Now, sum up the both numbers,

260 +370 = 630

Therefore, Keisha estimate of the sum is 630.

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A polygon is shown:

The area of polygon MNOPQR = Area of a rectangle that is 9 square units + Area of a rectangle that is ___ square units. (Input whole numbers only, such as 8.) (5 points)

Answers

Answer:  4

We're talking about the right part.  

OP = RQ - NM = 7 - 3 = 4

PQ = MR - NO = 3 - 2 = 1

Area(OPQ?) = 4×1 = 4

Answer: 4

The area of polygon MNOPQR = Area of a rectangle that is 9 square units + Area of a rectangle that is 4 square units.

What is the area of the rectangle?

The area of a rectangle is defined as the product of the length and width.

The area of a rectangle = L × W

Where W is the width of the rectangle and L is the length of the rectangle

A polygon is given in the question, as shown

The area of polygon MNOPQR = Area of a rectangle that is 9 square units + Area of a rectangle that is ___ square units.

We have to determine the fill-in-the-blank.

As per the given figure, we can see that

OP = RQ - NM = 7 - 3 = 4

PQ = MR - NO = 3 - 2 = 1

Required area of rectangle = 4 × 1 = 4

Hence, the required fill-in blank will be "4".

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What is the range of this function?

Answers

Answer:

2

Step-by-step explanation:

Cause

Roberta is studying the temperatures of the arctic over a period of time. the first day, the temperature was -1.5
degrees celsius. the next day, the temperature was 0.25 of that. what was the temperature roberta recorded on
the second day?
a.0.375°c
b. -0.375°c
c. -1.25°c
d. -1.75°c

Answers

b. -0.375
on the second day it was a quarter of the temperature it was on the day before so divide the initial temperature by four to find one quarter of it.

Answer:

b

Step-by-step explanation:

i had the same question

Data was collected for the number of births per 10,000 people in the United States of America for 20 consecutive years. Below is the data for those 20 consecutive years. Construct a p chart and answer the question below.

157 160 164 167 167 162 158 154 150 146 144 142 143 142 144 141 139 141 140 140
Select the correct lower control limit.

Answers

Answer:

Option A is correct.

Step-by-step explanation:

Unit 6: Statistical Process Control POSTTEST Answers (STANDARD NOT HONORS STATISTICS)

1. p bar = 0.0061

2. x bar = 6.992

3. UCL = 0.019

4. Process mean is not within statistical control. There are points above and below the control limits. There is an upward trend.

5. UCL = 58.90; LCL = 40.24

6. Process appears to be out of statistical control. There is a point that lies above the upper control limit.

7. Process mean is not within statistical control. One of the points lies above the upper control limit.

8. UCL = 0.133

9. Process is out of statistical control. There is a downward trend.

10. Process mean is not within statistical control. There are points above and below the control limits. There is a cyclical pattern.

PEARSON CONNEXUS STUDENTS: 100% correct if you put these answers.

Determine whether the given point (2, -2) lies on the line 3x – y = 4.

Answers

Answer:

Step-by-step explanation:

3(2) + 2 = 4

6 + 2 = 4

8 is not equal to 4

Therefore (2,-2) does not equal

A bag of apples that cost $4.75 is on sale for 30%.
What is the sale cost?

Answers

Answer:

$3.32

Step-by-step explanation:

You take 30% of 4.75. You multiply 0.30 times 4.75. Then you subract that from 4.75. Boom.

Answer:

$3.33

Step-by-step explanation:

$4.75 by 30 then divide it by one hundred. So, the discount is equal to $1.43. To calculate the sales price, simply deduct the discount of $1.43 from the original price $4.75 then get $3.33 as the sales price.

Which figure cannot be made by slicing through a cube?

Select two answers.

A. a square

B. an octagon

C. a decagon

D. a rectangle

E. a triangle

*Will award brainliest if correct*

Answers

Answer:

  B. an octagon

  C. a decagon

Step-by-step explanation:

A cube has six (6) plane faces, so any plane slice can intersect at most all 6 of those faces, creating a hexagon. No plane figure with more than 6 sides can be created by slicing a cube with a plane.

Cannot be created:

octagondecagon
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