Expand the expression 3(n + 7)

Answers

Answer 1

Answer:

3n + 21

Explanation:

you just times 3 with the numbers in the brackets

Answer 2
3(n+7)

3n+3•7

3n+21

Explanation: Numerical factors in this term have been multiplied.

Related Questions

The table shows the height in inches of 10 players on a college basketball team.​

Answers

Answer:

A) The median is one of the values listed in the table

Step-by-step explanation:

The median is the middle number in an ordered data set. Since the number of date in the table is a even number, both 75 and 76 is the middle number.  To find the median of an set of data that has an even number of sets, you just add the 2 middle numbers together and divide by 2. So like:

75+76=151

151/2=75.5

75.5 is the median but its not listed in the table, so A.

the answer to your question is a

Question 10
Please help (Someone gave me the wrong answer and now I'm stuck)

Answers

Answer

20 is 5%

1 fifth of hunderd that is 20%

=20%

C is the answer
lalalshjsb

Raj started with angle B and constructed angle D.

Answers

Answers B and D.

B and F connect to each other the same way D and H do, and the same is true for HI and Fg.

The congruent triangles are solved and the measure of HI ≅ FG and the measure of DH ≅ BF

What are Congruent Triangles?

Transformations change the size or position of shapes. Congruent shapes are identical, but may be reflected, rotated or translated. Scale factors can increase or decrease the size of a shape. Congruent Triangles simply mean the triangles that possess the same size and shape

The three sides are equal (SSS: side, side, side)

Two angles are the same and a corresponding side is the same (ASA: angle, side, angle)

Two sides are equal and the angle between the two sides is equal (SAS: side, angle, side)

A right angle, the hypotenuse and a corresponding side are equal (RHS, right angle, hypotenuse, side)

Given data ,

Let the first triangle being constructed be ΔCBA

Let the second triangle being constructed be ΔDEL

Now , the measures of the corresponding sides of the congruent triangles will be in the same ratio

So , measure of HI ≅ measure of FG

And , the measure of DH ≅ the measure of BF

Hence , the ∠D is congruent to ∠B

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pls help me with my question I will mark brainliest 20 points

Answers

Calculate the area of a circle.

To start solving the exercise, we obtain as data:

π = 3r = 3 ft

We apply as a formula:

A = πr², whereA = areaπ = pir = radius

We apply the formula and solve:

A = π r²A = 3× (3 ft)²A = 3 × 9 ft²A = 27 ft²

Therefore, the area of the circle is 27 ft².

Answer: 27ft²

Step-by-step explanation: Soln:

Given that,

π=3

Radius(r)=3ft.

We have,

A = π r²

A = 3* (3)²

A=3*9

A=27ft²

I NEED HELP ASAP!!!!!!!!

Answers

Answer:

Step-by-step explanation:

PQS and RQS are supplementary

PQS +68=180

PQS =112

x+ 112+TSQ=180

4x=3x+TSQ

TSQ=x which means

2x+112=180

2x=68

x=34

Ref to the fig
PQS+68=180(adj angle on st.line)
PQS=112
PSR=4x( opp angle st.line)

PSQ+3x=4x
PSQ=x

X+PQS+PSQ=180(angle sum of triangle)
2x+112=180
2x=68
x=34

Solve For X. 5 - 2x^2 = -15

Answers

Answer:

[tex]\sqrt{10}[/tex]

Step-by-step explanation:

5 - 2x^2 = -15

2x^2 = 20

x^2=10

x= [tex]\sqrt{10}[/tex]

-15-5= -20
Thus, -2x^2 = -20
Then -20/-2= 10
So, x^2 = 10
When you square root both of them, the answer is root 10

100 POINTS+BRAINLIEST 8TH GRADE MATH PT 4: this one is similar to #3

Answers

Answer:

b.  x + (x + 2) + (x + 4) = 39

Step-by-step explanation:

Definitions

Integer:  a whole number that can be positive, negative or zero.
e.g. ..., -3, -2, -1, 0, 1, 2, 3, ...Odd number: an integer that when divided by two leaves a remainder (so not a multiple of 2).  For example, 1, 3, 5, 7 are all positive odd numbers.Consecutive: following one after the other in order.

The sum of three consecutive odd integers

Let x be the first odd integer.

As there is a difference of 2 between consecutive odd integers, the next odd integer after x will be (x + 2).

Therefore, the next odd integer after (x + 2) will be (x + 2) + 2 = (x + 4).

So "the sum of three consecutive odd integers is thirty-nine" is:

x + (x + 2) + (x + 4) = 39

To solve

⇒ x + (x + 2) + (x + 4) = 39

⇒ x + x + 2 + x + 4 = 39

⇒ 3x + 6 = 39

⇒ 3x = 33

⇒ x = 11

Therefore, the three consecutive odd numbers are 11, 13 and 15.

The answer is B
Explanation

Can any one give me the answer????? Please

Answers

i think its n to neg infinity

The domain of the notation [tex]s(x) = \sum\limits^{\infty}_{n=1} n^{-x}[/tex] is the set of all real values

How to determine the domain?

The sum notation is given as:

[tex]s(x) = \sum\limits^{\infty}_{n=1} n^{-x}[/tex]

From the above notation, the smallest value of n is 1.

This means that the variable x can take any real value as it value

Hence, the domain of the notation [tex]s(x) = \sum\limits^{\infty}_{n=1} n^{-x}[/tex] is the set of all real values

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A class of students recorded the amount of time spent on homework on Monday night. The times are recorded below, in ours. Use the data to answer question 8-10

1 3/4 2 1/4 2 2 3/4

1 1 3/4 1 1/4 3

3 1/4 3 3/4 2 2


8. Make a line plot of the data shown above. Be sure to include a title and correctly label each value


9. Julie says the most amount of time spent on homework is 1 1/2 times the lest amount of time spent on homework. Is she correct? Explain.

10. Daniel says that more than half the students spent 2 1/2 hours or more on homework. Liz says more that half the students spent less than 2 1/2 hours on homework. Who is correct? Explain.

I need help ASAP

Answers

The line plot is the smallest fraction to the biggest and how many times that fraction was said is how many x’s go on top of that fraction for instance
The smallest number is 2 is the smallest so make a line plot and put the smallest number then the next biggest number then to the biggest and put a x over how many times that was used

2 friends shared 48 pineapple equally among themselves. One of the friends sold all his pineapple each at $5.How much did he get from selling the pineapples?

Answers

Answer:

$120

Step-by-step explanation:

48 pineapples shared equally by 2 people.

48/2 = 24

Each friend got 24 pineapples.

24 × $5 = $120

Answer: $120

Answer: $120

Step-by-step explanation:

Step 1: Find how many 1 person gets (pineapples per person)

48 pineapples divided by 2 people= 48÷2= 24 pineapples each.

Step 2: Money made by 1 person

He has 24 pineapples to sell because that's how many he is supposed to receive. he sells all of them for $5 each, so the total money he makes is 5x24= $120

Checks:

120÷24= 5

the pineapples are 5 dollars each (this is correct).

Hope this helps!

Let point P be (3, 5) and Q be (8, -3). Let T be the point on segment PQ such that PT:TQ = 1:2. Find
the coordinates of point T, and explain why this point T must be the point on segment PQ such
that PT:TQ = 1:2

Answers

Answer:

(14/3, 7/3)

Step-by-step explanation:

8-3=5, and 5/3+3=14/3.

5--3=8, and 8/3+5=7/3.

This has a ratio of 1:2 because the length is divided into three and 1 is separate from the other two.

Answer: (3/14, 3/7) Step-by-step explanation: 8-3-5, and 5/3+3=14/3. 5--3-8, and 8/3+5=7/3. This has a ratio of 1:2 because the length is divided into three and 1 is separate from the other two

A locker is in the shape of right rectangular prism. Its dimensions are as shown.




What is the surface area of this locker?

Answers

1008 is the surface area
the answer is 1008 (surface area)

Which answer choice contains a system of equations?

Answers

Answer:B

Step-by-step explanation:

✨ It’s B ✨ Hope this helps













2/5x−2+3(x−4) simplified

Answers

Answer:

17x-70/5

Step-by-step explanation:

Which measure is equivalent to 350 centimeters?


3.5 m

35 m

350 m

3500 m

Answers

3.5
350*0.01 = 3.5
Easy math :)

Answer:

The answer to your question is 3.5 m

Step-by-step explanation:

1 m= 100 cms

so 350 cms  = 3.5 m

I hope this helps and have a good day!

100 POINTS+BRAINLIEST 8TH GRADE MATH PT 5: WRITE THE EQUATION OF A LINE- this one was strange because the slope is supposed to be a negative fraction but that never appeared in the answer choices so please explain why I got it wrong thanks!!

Answers

Answer:

[tex]\textsf{b.} \quad 3x+5y=2[/tex]

Step-by-step explanation:

Define the given points:

[tex]\textsf{let}\:(x_1,y_1)=(4,-2)[/tex]

[tex]\textsf{let}\:(x_2,y_2)=(-1,1)[/tex]

Use the slope formula to determine the slope of the line:

[tex]\textsf{slope}\:(m)=\dfrac{y_2-y_1}{x_2-x_1}=\dfrac{1-(-2)}{-1-4}=\dfrac{1+2}{-1-4}=-\dfrac{3}{5}[/tex]

Use the point-slope formula to determine the equation of the line.

[tex]\implies y-y_1=m(x-x_1)[/tex]

Substitute the found slope and point (4, -2):

[tex]\implies y-(-2)=-\dfrac{3}{5}(x-4)[/tex]

[tex]\implies y+2=-\dfrac{3}{5}(x-4)[/tex]

Multiply both sides by 5:

[tex]\implies 5(y+2)=-3(x-4)[/tex]

Expand the brackets:

[tex]\implies 5y+10=-3x+12[/tex]

Add 3x to both sides:

[tex]\implies 5y+10+3x=-3x+12+3x[/tex]

[tex]\implies 3x+5y+10=12[/tex]

Subtract 10 from both sides:

[tex]\implies 3x+5y+10-10=12-10[/tex]

[tex]\implies 3x+5y=2[/tex]

Rhhdhb fbrhehfbbejeh brown 1638585

Solve the equation

3x-5< 8x-1/2

x+7≤ 4x+1

Answers

This is all I got. Hope this helps:
These are the steps following up to the answer

If the radius is 40 ft, what is the area of the circle?

Answers

Answer:

A = pi(r)^2

A = pi(40)^2

A = 1,600pi sq. ft.

Therfore the answer is C.) 1,600 pi sq. ft.

I hope this helps you!!

Answer:

C - 1600[tex]\pi[/tex] sq. ft.

Step-by-step explanation:

Since the answer has to be in terms of pi, we can exclude that from the equation.

The formula to find the area of a circle is [tex]\pi r^2[/tex] where r is the radius. If we plug in 40 for r, we get 1600[tex]\pi[/tex].

These days people use plastic to pay for everything. " What does this synecdoche mean in this question?

Answers

Answer:

ospe4mhe is taht he iaoe

Answer:

Synecdoche means in which a part of something is substituted for the whole (as hired hand for "worker")

Find the interest PLEASE: $194 at 7% each year for 13 years

Answers

Answer:

Step-by-step explanation:

the answer is

$194 (start) / 100 (100%) = $1.94 (1%)

$1.94 * 7 = $13.58 (7%)

$13.58 * 13 (13 years) = $176.54

$194 (start) + $176.54 (interest) = $370.54

the interest on $194 at 7% interest rate for 13 years is approximately $176.54.

To find the interest on $194 at an annual interest rate of 7% for 13 years, we can use the formula for simple interest:

Interest = Principal * Rate * Time

Where:

Principal = $194 (initial amount)

Rate = 7% (convert to decimal: 7% = 0.07)

Time = 13 years

Now, plug in the values:

Interest = $194 * 0.07 * 13

Calculate the interest:

Interest = $194 * 0.91

Interest ≈ $176.54

So, the interest on $194 at 7% interest rate for 13 years is approximately $176.54.

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Please help me.
i need to finish

Answers

I can’t really see it that well
the answer is 0.01.

Plsplsplsplspls help me

Answers

I believe it should be 48 cm
It should be 48 cm squared

The problem says: Jake cuts out five-pointed stars. They are different sizes, but they all have the same shape. The side lengths within each star are the same. To find the perimeter of each star, Jake uses the expression to find the perimeter of each star, Jake uses the expression 12E+1/2+4E-8.5+2E+8, where E is the side length of the star.
PART A: FIND THE PERIMETER OF A STAR WITH SIDE LENGTH OF 6 INCHES. SHOW YOUR WORK.
PART B. CHECK YOUR ANSWER TO PROBLEM 3 A. SHOW YOUR WORK.

Answers

Answer: 60

Step-by-step explanation: 12L+1/2=72.5

72.5-24-8.5+20

72.5-24=48.5-8.5=40

40+20=60

PLEASE HELP ME ASAP!!!!!

Answers

Answer:

Step-by-step explanation

Lines LP and QM are parallel, meaning KLP and QMN are supplementary

So KLP +QMN=180

3x+72=180

3x=108

x=36

8TH GRADE MATH 100 POINTS+BRAINLIEST - Factor Quadratic equations- please write out the steps, explain simply, and possibly provide a couple rules to remember for questions like these in the future. Any offensive answers or ones for the sake of points will be reported THANKS SO MUCH!!!
Also, 5 more 8th grade math questions are coming–GIVING AWAY 600 POINTS

Answers

Hello,

We have : (a + b)² = a² + 2ab + b²

4x² + 20x + 25 = (2x)² + 2 × 2x × 5 + 5² = (2x + 5)² → answer B

Here, we have a = 2x and b = 5 !

Answer:

[tex]\textsf{b.} \quad (2x+5)^2[/tex]

Step-by-step explanation:

Given quadratic equation:

[tex]4x^2+20x+25[/tex]

To factor a quadratic in the form [tex]ax^2+bx+c[/tex], find two numbers that multiply to [tex]ac[/tex] and sum to [tex]b[/tex].

[tex]\implies ac=4 \times 25=100[/tex]

[tex]\implies b=20[/tex]

Factors of 100 that sum to 20:   10 and 10

Rewrite [tex]b[/tex] as the sum of these two numbers:

[tex]\implies 4x^2+10x+10x+25[/tex]

Factorize the first two terms and the last two terms separately:

[tex]\implies 2x(2x+5)+5(2x+5)[/tex]

Factor out the common term (2x + 5):

[tex]\implies (2x+5)(2x+5)[/tex]

Simplify:

[tex]\implies (2x+5)^2[/tex]

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PLEASE ANSWER: A camera usually sells for $68. Because it was slightly damaged, it sold for $59.90, what was the rate of the discount to the NEAREST PERCENT?

Answers

12% is the answer if u don’t need an explanation
You could do 59.90/68 which is about 88. 100-88 is 12. Answer is 12%

Please help ASAP: Mr.Rodriguez bought a jacket at $69.50, a tie at $15.50 and a raincoat at $75.35. If he received a discount of 12 1/2% on each of these items then what was his bill?

Answers

Total bill is $140.30

Mr. Rodriguez's bill after receiving a discount of 12 1/2% on each item is $140.30.

To calculate Mr. Rodriguez's bill after receiving a discount of 12 1/2% on each item, we need to find the discounted price for each item and then add them together to get the total bill.

First, let's calculate the discount for each item:

Jacket: 12.5% of $69.50

Discount on jacket = 12.5/100 * $69.50 = $8.69

Tie: 12.5% of $15.50

Discount on tie = 12.5/100 * $15.50 = $1.94

Raincoat: 12.5% of $75.35

Discount on raincoat = 12.5/100 * $75.35 = $9.42

Now, subtract the discounts from the original prices to get the discounted prices for each item:

Jacket price after discount = $69.50 - $8.69 = $60.81

Tie price after discount = $15.50 - $1.94 = $13.56

Raincoat price after discount = $75.35 - $9.42 = $65.93

Finally, add the discounted prices of all items to find the total bill:

Total bill = $60.81 + $13.56 + $65.93 = $140.30

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Jack tried to define a rotation.For the center point CCC, the image C'C ′ C, prime is at the same point as CCC. For a point PPP that is not at CCC, a rotation of \thetaθtheta about point CCC creates point P'P ′ P, prime, such that CP=CP'CP=CP C, P, equals, C, P, prime and m\angle PCP'=\thetam∠PCP ′=θm, angle, P, C, P, prime, equals, theta. What mistake did Jack make in his definition of a rotation?

A
Jack needed to include the direction of the rotation.

(Choice B)
B
m\angle CPP'm∠CPP

m, angle, C, P, P, prime must equal \thetaθtheta.

(Choice C)
C
Point CCC must be the midpoint of PP'PP

P, P, prime.

(Choice D)
D
Jack did not make a mistake.

Answers

the answer is A because jack needs to find the point of ccc no i don’t want to get up to me and you
I think it’s B hope that helps

I need help with this question

Answers

Answer: 62.8in

Step-by-step explanation:

The formula for circumference is C=2πr. Put the values of 10 in for r and 3.14 in for pi, and you get an equation that looks like C=2(3.14)(10). Solving this equation gets you 62.8.

Answer:

62.8

Step-by-step explanation:

Circumference=2rpi

c=2*10*pi

c=20*pi

c=20*3.14

c=62.8

Just not sure with my answer.
A laundry had 32 shirts to wash. 14 were put in the washing machine. The rest were shared equally among 6 girls to wash. How many shirts did each girl wash?

Answers

32 - 14 = 18
18 divided by 6 = 3
THE ANSWER IS 3

Each girl washes 3 shirts. The 18 shirts are divided equally among the 6 girls

After putting 14 shirts in the washing machine, there are 32 - 14 = 18 shirts left to wash. These 18 shirts are shared equally among 6 girls. To find out how many shirts each girl washes, we divide the total number of shirts (18) by the number of girls (6):

Number of shirts washed by each girl = Total shirts / Number of girls

Number of shirts washed by each girl = 18 / 6

Number of shirts washed by each girl = 3

Each girl washes 3 shirts. The 18 shirts are divided equally among the 6 girls, so each girl washes the same number of shirts.

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Michaela is currently running 6 miles in 62. 4 minutes. She WANTS to run at a rate of 6 miles in 60 minutes. By how many minutes does Michaela need to decrease her time to reach her goal of 6 miles in 60 minutes? Type the NUMBER that completes this sentence: Michaela needs to decrease her time by ___ minutes to reach her goal of 6 miles in 60 minutes Which of the following is true about mixtures and compounds?OA. A compound forms when different substances chemically combine to form a new substance.B. A mixture contains different substances that are not chemically combined with one another.OC. Mixtures and compounds are both made of two or more different substances.D. all of these Assume we want to execute the DAXPY loop show on page 511 in MIPS assembly on the NVIDIA 8800 GTX GPU described in this chapter. In this problem, we will assume that all math operations are performed on single-precision floating-point numbers (we will rename the loop SAXPY). Assume that instructions take the following number of cycles to execute.[20] Describe how you will constructs warps for the SAXPY loop to exploit the 8 cores provided in a single multiprocessor when you look at the screen rather than your camera while presenting online you appear to proponents of overturning roe v. wade are popularly and collectively referred to as the A sealed rigid vessel contains air at STP. It is heated to bring the air to a temperature of 80 C.What will be the ratio of the mean free path of the air molecules at 80 C to their mean free path at STP? Breast cancer is the number 1 cause of cancer death among young women. Which of the followingcriteria for an ideal screening program is best illustrated by this statement?A: Substantial mortality and/or morbidityB: Early detection improves outcomeC: Screening is feasibleD: Screening is acceptable in terms of costs, harms and patient acceptanceE: None of the above discuss the conformity costs faced by a politician who has adopted a party label. When policymakers make decisions in response to a pre-specified rule, they are undertaking A) active policy B) discretionary policy. C) passive policy. D) irrational policy Show that the total ground-state energy of N fermions in a three-dimensional box is given by R_total = 3/5 N E_F Thus the average energy per fermion is 3E_F/5 Use the following list of accounts for Milner's Star Express Cleaning Service. Cash $2,026 Fees Earned 13,835 Accounts Payable 7,530 D. Milner, Capital January 1, 20-- 6,000 D. Milner, Drawing 1,750 Utilities Expense 153 Prepaid Insurance 1,216 Rent Expense 1,200 Accounts Receivable 4,080 Equipment 15,290 Wages Expense 1,650 Required: 1. Prepare an income statement for the year ended December 31, 20 draw the structure of a triglyceride that contains one myristic acid, one palmitoleic acid, and one linoleic acid. _________is a large phagocytic cell that has a high capacity for killing microbes and cleaning Calculate the pH of a buffer that contains 1. 00 M NH3 and 0. 75 M NH4Cl. The Kb value for NH3 is 1. 8 10-5 use equation i=r2dmi=r2dm to calculate the moment of inertia of a slender, uniform rod with mass mm and length ll about an axis at one end, perpendicular to the rod. a lot of 30 watches is 20 efective. what is the probability that a sample of 3 will contain 2 defectives TRUE/FALSE. (T/F) A reportable incident is any event that could lead to a lawsuit. As a soldier, activity is essential to your performance. Your initial recommended Activity Plus Targets are:a. Get at least 10,000 steps per dayb. Get at least 150 minutes of moderate aerobic exercise per weekc. Get at least 2 days or more of a resistance training per week milk comes in opaque containers because _____ is destroyed by exposure to light. if you add a competitive inhibitor of enzyme e1 to a cell, which species would increase in concentration in the cell?