Mathematics College

what is the answer of the file

Answers

Answer 1

Answer:

Check pdf

Step-by-step explanation:

Related Questions

3 - n = 9

algebra what does n =

Answers

move 3 to the other side making it negative
-n=9-3
-n=6

Explanation:

3-n=9

We minus 3 from each side of the equal sign.

-n = 6
We then multiply each side by -1.

n=6.

I hope this helps.

A car dealer sells four model types: A,B,C,D. On a given week, this dealer sold 10 cars of model A, 5 of model B, 8 of model C and 3 of model D. The selling prices of each automobile are respectively $12,500, $11,800, $15,900 and $25,300. Represent the data using matrices and use matrix multiplication to find the total revenue.

Answers

me Q i did not know somebody Help My frann

What is the aspect ratio of a photograph that is 10 inches wide and 8 inches high?

Answers

Answer:

5:4

Step-by-step explanation:

10/2:8/2= 5:4

A composite figure has three congruent triangles removed from it.

What is the area of the shaded region?

O 98ft
O 128ft
O 160ft
O 192ft

Answers

What do you get when you times the answer of 8 and 8 and 16 and 16 then it might be that but if u add 2 more 8’s what is the answer to that if it matches one of the answers it could be one of those

1. Two more than the product of 3 and a number is -7.

Answers

Answer: -3

Step-by-step explanation:

2 + 3(x) = -7

-2 -2

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

3x = -9

x = -3

At a picnic, there is a 5-gallon drink
dispenser filled with juice. Juice is served
in cups that each hold 8 fluid Ounces when
they are full. What is the greatest number
of cups that can be served?

Answers

Answer:

80 cups

Step-by-step explanation:

There are 640 ounces in 5 gallons so,

640 divided by 8 equals 80, therefore,

The greatest number of cups that can be served are 80

5 gallons is equal to 640 fluid ounces so if you divide 640 by the 8 fluid ounces that the cup can hold full this would give you 80 therefore you could fill 80 cups

Ms. Marcus purchased 5 pounds of grapefruit for $4.90. At this price how much will 7 pounds of grapefruit cost?

Answers

Answer: I thinnk the answer is 6.86

4.90 divided by 5=0.98

0.98 times 7=6.86

Step-by-step explanation:

3(n – 8) = -12 solve for n
plz i need the answer ASAP

Answers

Answer:

Step-by-step explanation:

Someone help please I can’t seem to get this one and its my last one

Answers

Answer:

345 cm squared I believe

I'm not 100% sure

3 (4x - 2) - 5x = 6 - 7 (-x -2)

Answers

Answer:

0=26

Step-by-step explanation:

Distribute

3(4−2)−5=6−7(−−2)

12−6−5=6-7(-x−2)

Combine like terms

12−6−5=6−7(−−2)

7−6=6−7(−−2)

Distribute

7−6=6−7(−−2)

7−6=6+7x+14

Answer

0=26

The solution to the equation 3 (4x - 2) - 5x = 6 - 7 (-x -2) does not exist

How to determine the solution to the equation

From the question, we have the following parameters that can be used in our computation:

3 (4x - 2) - 5x = 6 - 7 (-x -2)

Open the brackets

So, we have

12x - 6 - 5x = 6 + 7x + 14

Evaluate the like terms

So, we have the following representation

7x - 6 = 7x + 20

Next, we have

7x - 7x = 20 + 6

So, we have

0 = 26

This is false

Hence, the solution is no solution

Answers

Answer:

-3

Step-by-step explanation:

subtract 10 to the 25 so that cancels out the 10, you are left with -5m=15, then you divide the -5m by -5 to cancel it out on both sides. that leaves you with m by itself and once you do the division of 15 by -5 the result is -3

Help please!!! Brainliest immediately!

Kylie and her family need to buy a new refrigerator. The space available for the refrigerator measures 37 in wide, 72 in high, and 24 in deep.
Which size refrigerator would be the BEST fit for the available space?

Answers

Answer:

Step-by-step explanation:

find the value of v in rectangle

Answers

Answer:

Step-by-step explanation:

7v = v+12

6v = 12

v = 2

4. Aaliyah swims at an average speed of 8 meters per second, how long will it
take her to complete the race of 200 meters' length? *

Answers

25 seconds. Hope this helps.

Jamie wants to treat some friends to lunch. He has $40 and knows the lunch will cost about $7 per person p. How many people can Jamie buy lunch for.

Answers

He can but 5 people lunch and will have money leftover. If he includes himself it would be him and 4 other people.

Answer:

5 people

Step-by-step explanation:

40/7=5.71

Thats not enough for 6 people so you go down to 5 people, you can't have 5.71 of someone

Griffins's driveway is 30 feet long.

Choose the word and number to complete the sentence correctly.

To convert 30 feet to yards
?
30 by
?
.

Answers

Answer:

10 yards

Step-by-step explanation:

I'm gonna send you a picture of it

Answers

Answer:

Of whaT?

But thanks for the free points

The security code to your home security system includes three single digit numbers 2.
and two letters. Repetition is allowed for the numbers but not allowed for the letters.

Answers

There is about 866 possible combinations. (please mark brainiest)

The expression 7+3x+4 represents the perimeter of the triangle. Simplify the expression.

7+3x+4 =

Answers

Answer:

-3.6

Step-by-step explanation:

Simplifying

7 + 3x + 4 = 0

Reorder the terms:

7 + 4 + 3x = 0

Combine like terms: 7 + 4 = 11

11 + 3x = 0

Solving

11 + 3x = 0

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-11' to each side of the equation.

11 + -11 + 3x = 0 + -11

Combine like terms: 11 + -11 = 0

0 + 3x = 0 + -11

3x = 0 + -11

Combine like terms: 0 + -11 = -11

3x = -11

Divide each side by '3'.

x = -3.666666667

Simplifying

x = -3.666666667

Solve each equation by factoring ⁉️NEED THESE ASAP ⁉️

Answers

Answer:

a=-1

a=-2

n=-6

n=-3

n=-5

n=-3

Step-by-step explanation:

3. separate into probable cases

[tex]a + 2 = 0\\ a + 1 = 0[/tex]

[tex] {n}^{2} + 6n - 3n - 18 = 0 \\ [/tex]

factor out n from the expression

factor out -3 from the expression

[tex]n \times (n + 6) - 3(n + 6) = 0[/tex]

factor out n+6 from the equation

[tex](n + 6) \times (n - 3) = 0[/tex]

separate into probable cases

[tex]n + 6 = 0\\ n - 3 = 0[/tex]

solve the equations

[tex]n = - 6 \\ n = 3[/tex]

[tex]n ^{2} + 5n + 3n + 15 = 0[/tex]

factor out n and 3 from the expression

[tex]n \times (n + 5) + 3(n + 5) = 0[/tex]

factor out n+5

[tex](n + 5) \times (n + 3) = 0[/tex]

separate into probable cases

[tex]n + 5 = 0 \\ n + 3 = 0[/tex]

solve the equations

[tex]n = - 3 \\ n = - 3[/tex]

Find X using these two
24x-19
16x+13

Answers

Step-by-step explanation:

24x-19=0

24x=19

x=19/24

16x+13=0

16x=-13

x=-13/16

A contract between a manufacturer and a consumer of light bulbs specifies that the mean lifetime of the bulbs must be at least 1000 hours. As part of the quality assurance program, the manufacturer will institute an inspection program for each day's production of 10,000 units. An ordinary testing procedure is difficult since 1000 hours is over 41 days! Since the lifetime of a bulb decreases as the voltage applied increases, a common procedure is to perform an accelerated lifetime test in which the bulbs are lit using 400 volts (compared to the usual 110 volts). At such a voltage, a 1000-hour bulb is expected to last only 3 hours. This is a well-known procedure, and both sides have agreed that the results from the accelerated test will be a valid indicator of lifetime of the bulb.

The manufacturer will test the hypotheses H0 : µ = 3 versus Ha: µ < 3 at the α = 0.01 significance level with a simple random sample of 100 bulbs.

a. Describe what a Type I error would be in this context.
b. Describe what a Type II error would be in this context.
c. Which error—Type I or Type II—is likely to do more damage to the manufacturer’s relationship with the consumer? Explain.

Answers

Answer:

Follows are the solution to the given points:

Step-by-step explanation:

In point a:

In this sense, describe what type of error I will be.

Type I error: to conclude that perhaps the mean bulb life would be less than three hours when it becomes (at least) 3 hours.

In point b:

Describe throughout this context what the Type II error becomes.

An error of type II: never assuming that its bulbs' mean lifetime is much less than 3 hours. three hours at least

In point c:

What error — type I and type II — would further impact the interaction between the manufacturer and the customer?

A Type II error is probably further problematic because it means that even the buyer will buy bulbs that do not last long.

77006
75863

Subtract

Answers

Answer:

1143

Step-by-step explanation:

What does 5 mean? What is the value of 5

Answers

5? Did you mean to insert a picture

Maybe attach a photo

help someone please

Answers

I can’t really see it that good sorry

The number of polar bears in a region is decreasing by 5% per year There are 3000 polar bears in the region in 2017 What year will be the first year with less than 1000 polar bears in the region

Answers

Answer:

2031

Step-by-step explanation:

3000divide100=30x5=150x14=2100

2017+14=2031 w

In 2031 years, the first year with less than 1000 polar bears in the region.

What is an expression?

Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.

Given that;

The number of polar bears in a region is decreasing by 5% per year.

And, There are 3000 polar bears in the region in 2017.

Let after x years there are less than 1000 polar bears in the region.

Hence, We can formulate;

⇒ 3000 - 5% of 3000 × x < 1000

⇒ 3000 - 5/100 × 3000 × x < 1000

⇒ 3000 - 150x < 1000

⇒ 3000 - 1000 < 150x

⇒ 2000 < 150x

⇒ 2000/150 < x

⇒ 13.33 < x

So, The first year with less than 1000 polar bears in the region is getting after 14 years.

So, The value of years = 2017 + 14

= 2031

Learn more about the mathematical expression visit:

brainly.com/question/1859113

#SPJ5

glass holds 189 milliliters of juice. How many liters will 36 glasses hold?

Answers

Answer: 6804

Step-by-step explanation: If each glass holds 189 milliliters of juice and there are 36 glasses simply do 189*36, which is 6804

What is the measure of AC?

Answers

Answer:

a. 122 degree is the answer

According to a recent warning from the FDA, grain-free food might be giving dogs a life- threatening heart problem called dilated cardiomyopathy, or DCM. Scientists interested in studying this link were trying to see if there was a difference in the average blood pressure between four different food types (expensive grain-free dog food, cheap grain-free dog food, expensive dog food with grain included, and cheap dog food with grain included). What hypothesis test would be appropriate for analyzing the above scenario?
z test of independent averages
chi-squared goodness of fit test
ANOVA
test of two proportions
paired t-test
chi-squared test of independence
t test of independent averages

Answers

Answer:

z test of independent averages

chi-squared goodness of fit test

ANOVA

test of two proportions

paired t-test

chi-squared test of independence

t test of independent averages

Step-by-step explanation:

Who is smart enough to know this answer ?

Answers

A :v 12345678910111213141516171819

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