**Answer:**

r≈7.32

**Step-by-step explanation:**

You're welcome

2.

Chad drove 168 miles in 3 hours.

Part A

How many miles per hour did Chad drive?

Enter your answer in the box.

56

miles per hour

Part B

Chad will drive 672 more miles. He continues to drive at the same rate.

How many hours will it take Chad to drive the 672 miles?

Enter your answer in the box.

C

hours

**Answer:**

Part A) 56 mph

Part B) 12 hours

**Step-by-step explanation:**

Part A) 168/3 = 56 mph

Part B) 672/56 = 12 hours

A pool has some initial amount of water in it. Then it starts being filled so the water level rises at a rate of 666 centimeters per minute. After 202020 minutes, the water level is 220220220 centimeters.

**Answer:**

y = mx + b

slope(m) = 6

(20,220)....x = 20 and y = 220

now sub and find b, the y int

220 = 6(20) + b

220 = 120 + b

220 - 120 = b

100 = b

so ur equation is : y = 6x + 100

to graph :

y = 6x + 100.....u have a slope of 6....u have a y int of 100 or (0,100)...

I would say plot (0,100) and since ur slope is 6, go up 6 and to the right 1...but that is not to helpful because ur graph is not in intervals of 1.

So we will find some points on ur line.

y = 6x + 100....when x = 5

y = 6(5) + 100

y = 30 + 100

y = 130....so another point on ur line is (5,130)

y = 6x + 100...subbing in 10 for x

y = 6(10) + 100

y = 60 + 100

y = 160....another point is (10,160)

keep finding points this way...here are some more...

(15,190) , (20,220), (25,250)

**Step-by-step explanation:**

**Answer:**

y = 6x + 100

**Step-by-step explanation:**

In a random sample of 70 undergraduate students from a large university, it was found that 37 had used library books. Find the sample proportion

**Answer:**

The sample proportion of undergraduate students that used library books is 0.5286.

**Step-by-step explanation:**

The sample proportion is the number of desired outcomes divided by the size of the sample.

**In this question:**

Sample of 70 undergraduate students, 37 had used library books.

[tex]p = \frac{37}{70} = 0.5286[/tex]

The sample proportion of undergraduate students that used library books is 0.5286.

Which conic section does the equation below describe? x+2^2=4y-3

**Answer: Circle**

**Step-by-step explanation:**

22:4 :: x : 16, what is the value of x, if all the four numbers are in proportion.

**Answer:**

= 22:4 :: x : 16

22*16 = 4x

352 = 4x

x = 352/4

x = 88

Hope this helps you. Do mark me as brainliest.

Charlie, Alexander, and Nate went to lunch. The bill, before sales tax and tip, was $37.50. A sales tax of 8% was added.

A) How much was the sales tax?

B)How much was the total bill including tax?

C) The group then tipped 18% on the amount after the sales tax was added. How much did they leave as a tip?

D)What was the total cost of lunch including tax and tip?

**Answer:**

A.$3.00

B.$40.50

C.$7.29

D.$47.79

WILL GIVE BRAINLIEST. NEED URGENTLY!

Use the FOIL method to find the product below.

(x + 3)(x2 - 6x)

A. x3 - 9x2 - 18

B. X8 - 9x2 - 18x

c. x3 - 3x2 - 18x

D. x2 – 3x2 - 18

**Answer:**

C) x³-3x²-18x

**Step-by-step explanation:**

x³-6x²+3x²-18x

x³-3x²-18x

A diagnostic test for a disease is such that it (correctly) detects the disease in 90% of the individuals who actually have the disease. Also, if a person does not have the disease, the test will report that he or she does not have it with probability 0.9. Only 1% of the population has the disease in question. If a person is chosen at random from the population and the diagnostic test indicates that she has the disease, what is the conditional probability that she does, in fact, have the disease

**Answer:**

8.33% probability that she does, in fact, have the disease

**Step-by-step explanation:**

**Conditional Probability**

We use the conditional probability formula to solve this question. It is

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

In which

P(B|A) is the probability of event B happening, given that A happened.

[tex]P(A \cap B)[/tex] is the probability of both A and B happening.

P(A) is the probability of A happening.

**In this question:**

Event A: Positive test

Event B: Has the disease

**Probability of a positive test:**

10% of 100-1 = 99%

90% of 1%

So

[tex]P(A) = 0.1*0.99 + 0.9*0.01 = 0.108[/tex]

**Positive test and having the disease:**

90% of 1%

[tex]P(A \cap B) = 0.9*0.01 = 0.009[/tex]

**What is the conditional probability that she does, in fact, have the disease**

[tex]P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.009}{0.108} = 0.0833[/tex]

8.33% probability that she does, in fact, have the disease

I want to purchase a third of a cupcake for

myself, a third for my sister, and 4 thirds for our

cousin. Katara would be great. Please help! Quickly I’m waiting 5 mins :)

**Answer:**

Well it would be a total of 2 Cup Cakes

**Step-by-step explanation:**

1/3 + 1/3 + 4/3 =2

2/3 +4/3 = 6/3

ye

**Answer:**

**Step-by-step explanation:**

it would be 2

Determine if the matrix below is invertible. Use as few calculations as possible. Justify your answer. Choose the correct answer below. A. The matrix is not invertible because its determinant is zero. B. The matrix is invertible because its determinant is not zero. C. The matrix is not invertible because the matrix has 2 pivot positions. D. The matrix is invertible because its columns are multiples of each other. The columns of the matrix form a linearly dependent set.

**Answer:**

A. The matrix is not invertible because its determinant is zero.

**Step-by-step explanation:**

The matrix is invertible if the columns and rows are equal. The square matrix is invertible because it has equal rows and columns. The determinant of the matrix is zero then the matrix is no invertible.

Sue has four DVDs and Terry has six DVDs. They

put all their DVDs together and sold them for $10

for two DVDs. How much money will they earn if

they sell all of their DVDs?

**Answer:**

$50

**Step-by-step explanation:**

4+6=10/2=5*10=50

$50

Given:

Sue (4) + Terry (6) = 10 DVDs to sell

$10 for 2 DVDs ($10/2 = $5 per DVD)

Answer:

10 (total DVDs) * $5 (price per DVD) = $50

Given:

Sue (4) + Terry (6) = 10 DVDs to sell

$10 for 2 DVDs ($10/2 = $5 per DVD)

Answer:

10 (total DVDs) * $5 (price per DVD) = $50

turn 3/40 into a fraction

3/40 is a fraction itself.

ANSWER:

3/40 is already a fraction...

if you meant decimal then it’s 0.075

sorry if this doesn’t help

3/40 is already a fraction...

if you meant decimal then it’s 0.075

sorry if this doesn’t help

Help please !!! Thanks guys

Answer:

(b+4) and (b-1)

Explanation:

do a generic rectangle

b times b is b^2

b times 4 = 4b

-1 times b = -1b

-1 times 4 = -4

b^2+4b-1b-4

simplify

b^2+3b-4

(b+4) and (b-1)

Explanation:

do a generic rectangle

b times b is b^2

b times 4 = 4b

-1 times b = -1b

-1 times 4 = -4

b^2+4b-1b-4

simplify

b^2+3b-4

Science (from the Latin word Scientia, meaning "knowledge") is a systematic enterprise that builds and organizes knowledge in the form of testable explanations and predictions about the universe.

The earliest roots of science can be traced to Ancient Egypt and Mesopotamia in around 3500 to 3000 BCE

Answer:

?

Step-by-step explanation:

What are you even asking-

I'll send a photo of the problem! :)

**Answer:**

ok

**Step-by-step explanation:**

Maxine Frase plans to bake 12 dozen peanut butter cookies. She will use a recipe in

mperial más. The cookies are baked at 360 °F for 20 minutes.

Ingredients to make 3 DOZEN

1 cup peanut butter

cap chopped peanuts

2 eges

$ cuoces light brown sugar

pomd cake flour

1 teaspoon bicarbonate of soda

pinch of salt

Conversion Table

1 pound = 16 ounces = 480 g

1 teaspoon = 5 ml

250 ml

Convent cup to millilitres.

**Answer:**

What I don’t understand is this a question or a recipe

**Step-by-step explanation:**

Write 13 1/5 as a decimal.

**Answer:**

13.2

**Step-by-step explanation:**

The Fraction 13 1/5 as a **decimal **is 13.2.

To write 13 1/5 as a decimal, we can **divide **the **fraction** part by the denominator:

1 divided by 5 = 0.2

Then, we add the **whole **number part to the decimal part:

= 13 + 0.2

= 13.2

Therefore, 13 1/5 as a **decimal **is 13.2.

Learn more about **Decimal** here:

https://brainly.com/question/30958821

#SPJ6

Color blindness is an inherited characteristic that is more common in males than females. Let F represent female, and C represent red-green color blindness.

P(C) = 0.039 P(F and C) = 0.004 P(F or C) = 0.548

2. Use the Addition Rule or the "OR" formula for probability, substitute the values given, and solve for the probability of a Female.

P(F or C) = P(F) + P(C) - P(F and C)

**Answer:**

0.513 = 51.3% probability of being a female.

**Step-by-step explanation:**

**We are given the following formula:**

[tex]P(F \cup C) = P(F) + P(C) - P(F \cap C)[/tex]

In which:

Event F: Female

Event C: Red-green color blindness.

**Probability of a Female**

We have to find P(F), which is given by:

[tex]P(F) = P(F \cup C) + P(F \cap C) - P(C)[/tex]

We are given by:

[tex]P(C) = 0.039, P(F \cap C) = 0.004, P(F \cup C) = 0.548[/tex]

So

[tex]P(F) = P(F \cup C) + P(F \cap C) - P(C) = 0.548 + 0.004 - 0.039 = 0.513[/tex]

0.513 = 51.3% probability of being a female.

An angle measures 60 degree it is divided into 5 angles with equal measures. What is the measure of those angles

**Answer:**

Each part of the angle would measure 12 degrees

**Step-by-step explanation:**

Which names the figure correctly?

Group of answer choices

Lines DF and BE are parallel

Lines BD and CF are perpendicular

Lines DB and AC are intersectind

Lines FC and DB are parallel

**Answer:**

**Step-by-step explanation:**

Brainlest and points need help math

Answer: 43.96in^2

Explanation:

14x3.14=43.96in^2

Explanation:

14x3.14=43.96in^2

Every day when commuting to and from work, Stefanie

drives her car a total of 143 miles for 2.5 hours. Her car

already has 45,300 miles on it.

a. Write a function that shows the total number of

miles, f(x), Stefanie's car will have been driven

after x more days. Explain how you know where

each number goes in the equation.

b. If Stefanie works 4 days a week, how many miles

will her car have been driven after 3 weeks? Show

and explain all your work.

**Answer:**

**a) **[tex]f(x) = 45300 + 143x[/tex]

In which 45300 is the current number of miles driven and 143 is the amount of miles she drives each day.

**b) **47,016 miles.

**Step-by-step explanation:**

**Question a:**

Every day when commuting to and from work, Stefanie drives her car a total of 143 miles for 2.5 hours. Her car already has 45,300 miles on it.

So, after x days of work, the amount of miles driven will be given by

[tex]f(x) = 45300 + 143x[/tex]

In which 45300 is the current number of miles driven and 143 is the amount of miles she drives each day.

**Question b:**

After 4*3 = 12 days of work. So

[tex]f(12) = 45300 + 143*12 = 47016[/tex]

47,016 miles.

PLEASE HELP!!!!!! ILL GIVE BRAINLIEST *EXTRA 40 POINTS** !! DONT SKIP :((

**the answer is no. the solution is (1.333, 7.333)**

**Answer: No, it is not a solution**

**Step-by-step explanation:**

Substitute the value of x as 1 and y as 6

y = x + 6

6 = 1 + 6

6 = 7 (no)

-----------------------------------------

y = 4x + 2

6 = 4(1) + 2

6 = 4 + 2

6 = 6 (Yes)

-----------------------------------------

Even though the solution works in the second equation, it does not work in the first

Therefore (1,6) is not a solution to the system of equations

Lula has two dogs, one 35 pounds, the other 25 pounds. What is the average weight of Lula's dogs?

**Answer:**

30

**Step-by-step explanation:**

25+35= 60

60/2=30

**Answer: **30

**Step-by-step explanation:**

The term average has a number of different meanings. Most generally, it is a single number that is used to represent a collection of numbers. In the context of mathematics, "average" refers to the mean, specifically, the arithmetic mean. It is a relatively simple statistical concept that is widely used in many areas.

**The equation below is one of the more commonly understood definitions of the average: **[tex]Average =[/tex]** **[tex]\frac{Sum}{Count}[/tex]

Does anyone know the real answer

**Answer:**

srry I'm dum need points

What do you means, what is the answer?

Can someone please help me Ik it’s blurry but you have to zoom in it’s due tomorrow

**Answer AND Step-by-step explanation:**

1. x = 53° Supplementary Angles Theorem

2. x = 37° Complementary Angles Theorem

3. x = 45° Right angle = 90°, and 90 divided in half is 45, so 45 + 45 = 90

4. x = 180° Straight lines are 180 degrees.

5. x = 130° Vertical Angles Theorem

6. x = 90° Right Angle, and Vertical Angles Theorem

7. x = 15° Complementary Angles Theorem

8. x = 60° Supplementary Angles Theorem

9. x = 20° Complementary Angles Theorem

10. x = 140° Supplementary Angles Theorem

11. x = 47° Supplementary Angles Theorem

12. x = 18° Supplementary Angles Theorem

**Supplementary Angles Theorem** - two angles that are next to each other and add up to 180 degrees.

**Complementary Angles Theorem** - two angles that are next to each other and add up to 90 degrees.

**Vertical Angles Theorem** - Angles that are directly across from each other made by an intersection will have the same angle value.

*#teamtrees #PAW (Plant And Water)*

What's XY? Base A is 20 and base B is 36

**Answer:**

**Step-by-step explanation:**

c

please help asap! It’s due today

12(3x+2y) and 4(9x+6y) and 6(6x+4y)

The owner of a local nightclub has recently surveyed a random sample of 300 customers of the club. She would now like to determine whether or not the mean age of her customers is over 35. If so, she plans to alter the entertainment to appeal to an older crowd. If not, no entertainment changes will be made. Suppose she found that the sample mean was 35.5 years and population standard deviation was 5 years. What is the p-value associated with the test statistic

Answer:

0.0416

Step-by-step explanation:

Given :

Sample size, n = 300

Sample mean, x = 35.5

Population mean, m = 35

Standard deviation, s = 5

The test statistic :

Zstatistic = (x - m) / s/sqrt(n)

Zstatistic = (35.5 - 35) / 5/sqrt(300)

Zstatistic = 0.5 / 0.2886751

Zstatistic = 1.732

Using the p value calculator from Zstatistic :

One tailed P value at 95% confidence interval is : 0.0416

The 3rd term of an arithinetic progression is-9

and the 7th term is -29. Find the 10th term of the

progression.

**Answer:**

**-64**

**Step-by-step explanation:**

The computation of the 10th term of the progression is shown below:

The 3rd term is -9

**A_n = a + (n - 1)d**

-9 = a + (3 - 1)d

-9 = a + 2d

-9 - 2d = a

Now the 7th term is -29

**A_n = a + (n - 1)d**

-29 = a + (7 - 1)d

-29 = a + 6d

Put the a value to the above equation

-29 = -9 - 2d + 6d

-29 + 9 = 4d

-20 = 4d

d = -5

Now

-9 - 2d = a

-9 - 2(-5) = a

-9 - 10 = a

a = -19

Now finally the 10th term of the progression is

**= a + (n - 1)d**

= -19 + (10- 1)-5

= -19 -45

= **-64**

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list the planets from smallest to largest:
A small business company is considering updating the current production line. There are two plans. For plan A, the fixed cost will be $40,000 and the variable cost will be $27 per unit after the update. For plan B, the fixed costs will be $54,000 and the variable cost will be $26 per unit after the update. Please answer the following questions: (a) Suppose the selling price is $35, what is the break-even volume for each plan