Mathematics College

Multiply 4x (x - 3)
I need help badly please

Answers

Answer 1

Answer:

[tex] {4x}^{2} - 12x[/tex]

Answer 2

Answer:

4x² - 12x

Step-by-step explanation:

Multiply 4x by each term inside the parentheses

4x(x) = 4x²

4x(-3) = -12x

Put the terms back into order

4x² - 12x

Related Questions


x - 2y = 0
2x + y = 5

Answers

x - 2y = 0
x = 2y

2x+ y = 5
Replace x
2(2y) + y = 5
4y + y = 5
5 y = 5
y = 5/5 = 1

x - 2y = 0
x - 2(1) = 0
x - 2 = 0
x = 2

x=2 and y=1

Simplify the Expression and EXPLAIN what you did and WHY.

-3(4m+3)+2m

Answers

Answer:

-10m-9

Step-by-step explanation:

open the bracket by multiplication

-3 × 4m= -12m

-3 × 3= - 9

-12m - 9 +2m

arrange like terms together

-12m +2m -9

-10m -9

Ann's rent increased from $1,200 to $1,350.
By what percent did her rent increase?

Answers

Answer: Percentage increase: 12.5%

Step-by-step explanation: (EXAMPLE)  percentage increase/decrease = (Vnew - Vold) / Vold × 100%

Example #1

Price percentage increase from old value of $1000 to new value of $1200 is caluclated by:

percentage increase = ($1200 - $1000) / $1000 × 100%

= 0.2 × 100% = 20%

Answer:

12.5%

Step-by-step explanation:

1350 - 1200 / |1200| × 100% =

150 / 1200 × 100 = 12.5%

A writer buys a new laptop for $1866. Every year the laptop decreases in value by 20%.

Answers

Answer:

the answer is A

A function that represents a $1866 laptop that decreases in value by 20% each year is f(n)=1866(1.2)ⁿ.

What is the function?

Functions are the fundamental part of the calculus in mathematics. The functions are the special types of relations. A function in math is visualized as a rule, which gives a unique output for every input x.

Given that,

$1866 laptop that decreases in value by 20% each year.

Here, f(n)=1866(1+20%)ⁿ, where n is the number of years

f(n)=1866(1+20/100)ⁿ

f(n)=1866(1.2)ⁿ

Therefore, a function that represents a $1866 laptop that decreases in value by 20% each year is f(n)=1866(1.2)ⁿ.

To learn more about the function visit:

brainly.com/question/28303908.

#SPJ2

Use the graph at the right. Find the vertices of the image of QRTW for a dilation with center​ (0,0) and a scale factor of 12.

Answers

Answer:

you need to insert the graph's picture lol

Step-by-step explanation:

35% of what number is 91?
I need step by step too

Answers

Answer:

29.12

Step-by-step explanation:

91 ×35/100 =2912/100

so 29.12

260. 91 divided by .35(35%)

a cylinder shaped water pitcher has a radius of 5 inches and a height of 12.5 inches find the surface area of the pitcher
A.5495 in² B. 54.95 in²
C.549.5 in² D. 5.495 in²​

Answers

Question:-

A cylinder shaped water pitcher has a radius of 5 inches and a height of 12.5 inches. Find the surface area of the pitcher.

Answer:-

Given:-

[tex] \bullet [/tex] Radius (r) of a cylinder shaped water pitcher = 5 inches.

[tex] \bullet [/tex] Height (h) of a cylinder shaped water pitcher = 12.5 inches.

To Find:-

The surface area of the pitcher.

Solution:-

We know,

Formula of Surface area of a cylinder is 2πr(r + h) sq. units.

So,

Surface area of the pitcher = 2 × 3.14 × 5(5 + 12.5)

Surface area of the pitcher = 31.4 × 17.5

Surface area of the pitcher = 549.5 in²

[tex] \therefore [/tex] The surface area of the pitcher is 549.5 in².

Hence, the option (C) 549.5 in² is correct. [Answer]

The surface area of the cylinder is  549.50  in².

What is the surface area of the cylinder?

A cylinder is a three-dimensional object. It is made up of a prism with a circular base. The total surface area is the sum of the areas of the faces or surfaces of a 3-dimensional object

Total surface area = 2πr(r + h)

Where:

π = 3.14r = 5 h = height

2 x 3.14 x 5 (5 + 12.5) = 549.50  in²

HELP!!!!? ASP! PLSSSS #14

Answers

C) 54 is correct
Multiply all numbers! Mark with crown!

Write 34/5 as a mixed number. 4 5/6 3 4/5 6 4/5 6 5/4

Answers

Answer:

6 4/5

Step-by-step explanation:


A circular flower garden has a radius of 19 ft that
has to be mulched. Each bag of mulch covers 32square feet. How
many bags of mulch are needed? Use TI = 3.14. Round to the
nearest whole number

Answers

Step-by-step explanation:

[tex]area \: of \: garden = \pi {r}^{2} \\ = 3.14 \times {19}^{2} \\ = 1133.54 \: {ft}^{2} \\ number \: of \: bags = \frac{area \: of \: garden}{area \: covered\: by \: bag} \\ = \frac{1133.54}{32} \\ = 36 \: bags[/tex]

rewrite
3/20
and
2/15
so that they have a common denominator.

Answers

Answer:

9/60 and 8/60

Step-by-step explanation:

They both have the number 60 in common

Solve (x-3)^2=5 I need help it’s on a p e x

Answers

Answer:

x= 3 + or - √5

hope this helps

have a good day :)

Step-by-step explanation:

Find the product. Write the answer in scientific notation.
(5×10^−7)×(3×10^6)=
I GIVE BRANLIEST AND ALOT OF POINTS

Answers

Answer:

1.5

Step-by-step explanation:

Answer:

1.5

Step-by-step explanation:

Evaluate (a3)4
What is the answer please?

Answers

Answer: -3 to the fourth power means we are multiplying -3 four times. Hence answer is 81 and not -81

Step-by-step explanation:

Historically, about ​53% of the population of a certain country believed that the​ planet's temperature was rising​ ("global warming"). A March 2010 poll wanted to determine whether this proportion had changed. The poll interviewed adults in the​ population, and said they believed that global warming was real.​ (Assume these adults represented a simple random​ sample.)

Required:
a. What percentage in the sample believed global warming was real in 2010?
b. Is this more or less than the historical 57%?

Answers

Answer:

(a) The proportion is 61.23%

(b) It is more than the historical 57%

Step-by-step explanation:

This question has missing details, and they are:

[tex]n = 926[/tex] ---- The Sample Adults

[tex]x = 567[/tex] -- Those that believe global warming was real

Solving (a): The proportion of those that believe.

This is calculated as:

[tex]p = \frac{x}{n}[/tex]

Substitute values for x and n

[tex]p = \frac{567}{926}[/tex]

[tex]p = 0.6123[/tex]

Express as percentage

[tex]p = 0.6123 * 100\%[/tex]

[tex]p = 61.23\%[/tex]

Solving (b) More or less than 57%

By comparison:

[tex]61.2\% > 57\%[/tex]

Hence, it is more than the historical 57%

Christine's age is 6 more than Ken's age. Three times Ken's age plus 5 times
Christine's Age is equal to 46. How old is Christine?

Answers

Answer:

6x3+5=23

Step-by-step explanation:

a system of equations is shown x-2y=-5 2x+4y=14

Answers

Answer: here you go

Step-by-step explanation:

A) 2x + 4y = 14

B) 4x + y = 20

If you multiply equation A by -2, then when the equations are added, the x will be eliminated.

The solutions are:

X = 4.714285714285714

Y = 1.1428571428571428

Define the following terms using your own words. (2-3 sentences only)
1. Frequency
2 Class size
3. Ogive
4. Variance
5. Range​

Answers

Answer:

Frequency: the rate at which something occurs over a particular period of time or in a given sample.Class size :Class size is the average number of students per class, calculated by dividing the number of students enrolled by the number of classes..O give :Ogive is the curve which is constructed by plotting cumulative frequency data on the graph paper, in the form of a smooth curve.Variance: The term variance refers to a statistical measurement of the spread between numbers in a data set. Range: The range, the difference between the largest value and the smallest value.

-. For the event of rolling three standard fair 6-sided dice, find the following probabilities. Give all
answers as a simplified fraction.
The probability of rolling a sum of 8 or a sum of 12.
P(Sum is 8 u Sum is 12)


Answers

Answer:

23/108

Step-by-step explanation:

Remark

There are 6 * 6 * 6 = 216 ways that you can throw three dice. There are 21 different ways of throwing an 8There are 25 different ways of throwing a 12I'll list the eights. The 12s are done the same way.

Ways of making Eight

116125134143152161215224233242251314323332341413422431512521611

Answer

P(8) = 21 / 216

P(12) = 25/ 216

P(8 or 12) = 21/216 + 25/216

P(8 or 12) = 46/216 = 23/108

You wish to test H 0 : μ d = 0 versus H a : μ d < 0 at a significance level of 0.10. For the context of this problem, μ d = μ 2 − μ 1 where the first data set represents a pre-test and the second data set represents a post-test. You obtain pre-test and post-test samples for n d = 28 subjects. The average difference (post - pre) is ¯ x d = − 4.3 with a standard deviation of the differences of s d = 45.5 .
What is the test statistic?

Answers

Answer:

0.5

Step-by-step explanation:

Given :

H0 : μd = 0 VS H1 : μd ≠ 0

Test statistic :

xd / (sd ÷ √n)

Where ;

xd = mean difference = -4.3

sd = standard deviation of difference = 45.5

n = sample size = 28

The test statistic is thus :

-4.3 / (45.5 / √28)

-4.3 / 8.5986917

= 0.5000760

Hence, test statistic = 0.5

The most expensive type of life insurance is

O limited-payment life insurance

O term insurance

O endowment life insurance

O whole-life insurance

Answers

Whole life insurance I think

Please Help! (picture)

Answers

Step-by-step explanation:

f(g(x))

f(x-1)

(x-1)^2

x^2 -2x + 1

can someone explain how to solve and graph this step-by-step?​

Answers

(x,y)=(2,1) where the two lines intercept
so for the first equation you go on the y line and dot -4 then count up 5 times then right 2 times since it’s rise over run
for the second line start at positive 3 on the y line then it’s -1/1 which is up once and left once cause of the negative

what is the surface area, in square inches, of the container?

Answers

Answer:

62 in

Step-by-step explanation:

You can split up the rectangles and find the surface area of each on them add them

Hope this helps!

A card game requires that you have a sum of 5 in order to win. Based on the cards shown below, will Cameron win the game? Look at the picture above​

Answers

Answer:

D

Step-by-step explanation:

What are the coordinates of point S?
Write your answer as an integer or decimal to the nearest 0.5.

Answers

Answer:

(0,1.5)

Step-by-step explanation:

(x,y)

0.1.5 because you would understand did you lestuoen to the teacher

Without establishing good credit, it would be most difficult to
A
find a job.
B
buy lunch.
с
buy a house.
D
make a minimum payment.

Answers

Answer:

It's gonna be C

Step-by-step explanation:

No explanation it's C.

A cylinder soup has a radius of 1,6 in and is 5/7 in. tall what is the volume

Answers

Answer:

[tex]V=0.0623\ inch^3[/tex]

Step-by-step explanation:

Given that,

The radius of cylinder, r = 1/6 inch

The height of the cylinder, h = 5/7 inch

We need to find the volume of the cylinder. The formula for the volume of a cylinder is given by :

[tex]V=\pi r^2 h\\\\=3.14\times (\dfrac{1}{6})^2\times \dfrac{5}{7}\\\\V=0.0623\ inch^3[/tex]

So, the volume of the cylinder is equal to [tex]0.0623\ inch^3[/tex].

What is sin 0 when cot 0 = {?
0
(1,0)
sin e
Rationalize the denominator if necessary.

Answers

9514 1404 393

Answer:

  (√6)/3

Step-by-step explanation:

The relation between cot(x) and sin(x) is ...

  sin(x) = 1/√(cot(x)^2 +1)

Filling in the given value, we have ...

  [tex]\displaystyle\sin{\theta}=\frac{1}{\sqrt{\left(\frac{\sqrt{2}}{2}\right)^2+1}}=\sqrt{\frac{2}{3}}\\\\\boxed{\sin{\theta}=\frac{\sqrt{6}}{3}}[/tex]

Answer:

(✓6)/ 3 is the answer.

Step-by-step explanation:

#CarryOnLearning

helppp meee plssssss

Answers

Answer:

[tex]y\leq -6[/tex]

Step-by-step explanation:

[tex]\frac{1}{2}y \leq -3[/tex]

Our inequality requires first to solve for y.

To solve for a variable, we must isolate it.

In this case, first, we can multiple by the inverse of the fraction which is 2.

[tex]\frac{1}{2}y\leq -3\\[/tex]

[tex]2(\frac{1}{2}y)\leq -3(2) \\[/tex]

1*y=y and -3*2=-6

So our inequality stands like this -

[tex]y\leq -6[/tex]

When graphing, it must look like this:

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