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

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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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

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

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

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].

Which answer choice contains a system of equations?

Answers

Answer:B

Step-by-step explanation:

✨ It’s B ✨ Hope this helps













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")

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)

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

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%

Plsplsplsplspls help me

Answers

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

2/5x−2+3(x−4) simplified

Answers

Answer:

17x-70/5

Step-by-step explanation:

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

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

Please help me.
i need to finish

Answers

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

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

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!

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

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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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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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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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

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

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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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

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

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!

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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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
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