How do you expand and simplify :
(x+3)^2​

Answers

Answer 1

Answer: x^2 + 6x + 9

Step-by-step explanation:

first, you square everything.

x^2 + 2x x 3 + 3^2

then, you calculate/evaluate.

x^2 + 6x + 9


Related Questions

Find the slope of the line going through the points (0, -7) and (8, 1).

Answers

Answer:

8,1

Step-by-step explanation:

maybe i think this will help you

Identify an equation in point-slope form for the line parallel to y =-2/3x+8 that
passes through (4,-5).

Answers

first find the slope (which is -2/3)

then plug into point-slope formula using the coordinates. if you dont remember point-slope is “y-y1 = m (x-x1) where y1 being the y of the coordinate while x1 being the x of the coordinate and m being the slope.

plug it in to get “y+5 = -2/3 (x-4)

that’s the point-slope form

Please answer correctly !!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!

Answers

Answer:

80 degrees. add the known angles, then subtract it from 180.

Candice skipped 12 m in 3 seconds. What was her speed in m/s?
A. 4 m/s
B. 3 m/s
C. 12 m/s

Answers

her speed is (A) 4 m/s

Answer:

her speed is answer in m/s A 4 m/a

Li bought his dog Spot a huge bone that is 15 inches long. Spot chews 4 inches off the bone every day. What is the new length of the bone after 3 days?

Answers

Answer:

3 inches

Step-by-step explanation:

If the dog chews off 4 inches every day, you first have to multiply the inches by the number of days, which in this case is 3 x 4, which equals 12. In 3 days, he chewed off 12 of the original 15 inches, leaving only 3 inches left.

If a car travels 400 m over 80 seconds, how fast is the car traveling?

Answers

300 meters per minute: 3600 meters per hour

YW BRAINLIEST PLEASE

Solve for x.

3/5x + 1/4 = 7/20x - 4

Answers

Answer: 3/5x + 1/4 = 7/20x - 4

Step-by-step explanation:

Investors buy a studio apartment for $140,000. Of this​ amount, they have a down payment of $21,000. Their down payment is what percent of the purchase​ price? What percent of the purchase price would a ​$7,000 down payment​ be?

Answers

Answer:

a. Down payment of $21,000

= 21,000 / 140,000

= 0.15

= 15%

b. Down payment of $7,000

= 7,000/ 140,000

= 0.05

= 5%

Some number is equal to 1/3 of the sum of 83, -27.2, and 73. What is the number?

Answers

i think the answer is 80.13

What is the RANGE and the IQR for 17,18,22,17,16,21,19,and16

Answers

Answer:

so 1- 2 is  negative 3 so minus tha by 3 than 4x2

Step-by-step explanation:

What is the distance between the points (-2, 4) and (7, -5)?

Answers

i believe it would be (-9,9) but i’m not sure. i got this answer because
-2-7 = -9
4(-5) = 9
hope this helps! feel free to mark brainliest:)

HELP PLEASE!! Michelle has a new beaded necklace. 29 out of the 58 beads on the necklace are blue. What percentage of beads on Michelle's necklace are blue?


Write your answer using a percent sign (%). ILL GIVE BRAINLIEST IF CORRECT

Answers

Answer is 50% hope this helps

F(x)=2x+4 and g(3)=x^2+3

Answers

The answer for g(3) is 12
F(x) would be that x is -2

Find the area of the isosceles triangle. please help thanks

Answers

Answer:

1080 m^2 Don't submit m^2 in your answer.

Step-by-step explanation:

Givens

The catch is to find h

To do that, use a^2 + b^2 = c^2

a b and c are in the same 1/2 triangle.

a = 48/2 = 24 m

b = h = ?

c = 51 meters

Solution

a^2 + b^2 = 51^2                      Substitute for b^2 = h^2

24^2 + h^2 = 51^2                   Expand 24^2 and 51^2

576 + h^2 = 2601                    Subtract 576 from both sides

h^2 = 2601 - 576

h^2 = 2025                              Take the square root of both sides

h = 45

Area

Area = 1/2 b * h

Area = 1/2 48 * 45

Area = 1080

Remark

Notice that to find h you only use 1/2 of 48 because that is the base of the right triangle.

To find the area, you need to use all of 48 because 48 is the full length of the base.

− 7 / 12 + 3 / 8 thanks

Answers

Answer:

-5/24

Step-by-step explanation:

Simplify the denominators

-14/24 + 9/24

Add them but keep the denominator

-5/24

Answer:

-840

Step-by-step explanation:

12+3=15

-7*15=-105

-105*8=-840


4. Emilio asks his classmates what month they were born. He finds that 15
out of 125 classmates were born in July. If there are 1,280 students in
Emilio's school, how many students can he expect to have birthdays in July
based on the experimental probability?
Ok

Answers

Answer:153

Step-by-step explanation:

From the question, we are informed that Emilio asks his classmates what month they were born and that he finds that 15 out of 125 classmates were born in July. This gives us a fraction of 15/125 = 3/25.

If there are 1,280 students in Emilio's school, the number of students that he can expect to have birthdays in July would be:

= 3/25 × 1280

= 153.6

There will be 153 students expected

I need help some help please

Answers

Answer:

1. no, 2. yes

Step-by-step explanation:

You need to use the triangular inequality thereom, which goes by if any side lengths are added together, they are greater than the remaining one. So, for number one, although 20+9=29>8 and 20+8=28>9, 9+8<20 since 9+8=17, which is less than 20. For number two, yes because 1) it is a right triangle triple and 2) 3+4=7>5, 4+5=9>3, and 5+3=8>4.

Answer:

Number 1 is Not a triangle so No and you don’t need to classify becuase it’s not aa triangle

Number 2 is a triangle becuase its ta Pythagorean triplet and even if you checK, it adds up.

Step-by-step explanation:

1) So using Pythagorean Theorem

8^2+9^2=20^2

64+91=400

That is not true

2) 3^2+4^2=5^2

9+16=25

That is true  

A.4. B.-4. C.1/4. D-1/4

Answers

A or B think it's A tho not sure

Answer:

B. -4

Step-by-step explanation:

The slope is -8/2 which is the same as -4.

Another way you could do it is down 4 and right 1. That would be -4/1 which is the same as -4.

I hope this helped and if it did I would appreciate it if you marked me Brainliest. Thank you and have a nice day!

$12,000 at 2.2% for 5 years.
what’s the interest?

Answers

Answer:

264.

Step-by-step explanation:

12,000X2.2%=264.

Ronnie charges his customers a flat fee of $25 to fix a computer. Then, he charges $30 for each hour he spends working on the computer. If his first job cost $175, how many hours did he spend working?

Answers

Answer:

Ronnie spent 5 hours working.

Step-by-step explanation:

From the information given, the total cost of the job is equal to the flat fee plus the result of multiplying the cost per hour for the number of hours which is:

c=25+30x, where:

c is the total cost of the job

x is the number of hours

Now, you can replace c with 175 and solve for x:

175=25+30x

175-25=30x

150=30x

x=150/30

x=5

According to this, the answer is that Ronnie spent 5 hours working.

Answer:

7.5

Step-by-step explanation:

Ronnie charges $25 plus $20 per hour. This means that he made the following depending on how many hours he spent on it:

Hours        Dollars

0                 25 = 25 + 0(20)=25

1                  25+20 = 25 + 1(20)=45

2                  25+20+20 = 25 +2 (20)=65

3                  25+20+20+20 = 25 +3 (20)=85

4                  25+20+20+20+20 = 25 +4 (20)=105

5                  25+20+20+20+20+20 = 25 +5 (20)=125

......

n                  25+n(20)=175

To find how many hours he worked for $175 we solve the equation using inverse operations:

25+n(20)=175

25-25+n(20)=175-25

n(20)=150

n= 7.5 hours

Enter an inequality that represents the description, and then solve.
Dave has $11 to spend on an $8 book and two birthday cards (c) for his friends. How much can he spend
on each card if he buys the same card for each friend?

Answers

Answer:

$6

Step-by-step explanation:

246.8 is what percent of 128? Round to the nearest thousandth.

Answers

Answer:

60%

Step-by-step explanation:

Answer:

Most 193%

Step-by-step explanation:

246.8/128= 1.928

Factor 15x + 35 using the GCF

Answers

Answer:

Step-by-step explanation:

find all of tehe factors to both numbers

15x = 5 3 x

35 = 5 7

pull 5 out of both of them and put the remaining factors in parentheses

5(3x + 7)

Solve for x: 7(9 + x) = 84
x= 3
x= 21
x=16
x=64

PLEASE HURRY WILL GIVE BRAINLIEST!!!

Answers

Answer:

my answer is 2 . 3 I think

When Ellen’s family had completed 70% of a trip, they had traveled 35 miles. How far is the trip overall? (I need a number sentence/A complete sentence)

Answers

Answer:

If Ellen traveled 35 miles and this was 70% of her trip, then 100% of her trip would be 50 miles.

Step-by-step explanation:

You can solve this by setting up a proportion. 35/70 = ?/100. To solve this, cross-multiply 35 and 100 to get 3,500. Divide this by 70 and get 50. This means that 35/70 = 50/100.

please help!!! ASAP

Answers

Answer:D

Step-by-step explanation:

It's on a computer

Answer:

simulation

Step-by-step explanation:

im in 8th grade

For the system, what is the y-value? 1x + 3y = 10 -x + 8y = 4

Answers

y =− 11/2≈−0.181818182 is that what your looking for

how long is the cable

Answers

Answer:

anywhere from 169 to 220 metres,

Step-by-step explanation:

Help please!

Bart had an income of $38,250 last year. If the inflation rate is 4.5%, what is his purchasing power?

A. $33,614.85
B. $34,543.75
C. $34,998.15
D. $36,528.75

Answers

Answer:  D) $36,528.75

=======================================================

Explanation:

Positive inflation eats away at the purchasing power of money.

If inflation is 4.5%, then the purchasing power goes down by 4.5% meaning his purchasing power is 100% - 4.5% = 95.5% of what it used to be.

95.5% of $38,250 = 0.955*38250 = 36,528.75

So his purchasing power is $36,528.75

The purchasing power of Bart by the income of last year is option D. $36,528.75.

What is Inflation?

Inflation can simply be defined as the increase in the rate of the prices over a period of time. In other words, inflation describes how much more expensive has a commodity or service becomes in a period of time.

It is clear that, inflation decreases the purchasing power of money.

Given that, the inflation rate is 4.5%.

Also, Bart had an income of $38,250 last year.

Purchasing power will get decreased by 4.5%.

Purchasing power = $38,250 - ($38,250 × 4.5%)

                              = $38,250 - (1721.25)

                              = $36,528.75

Hence the purchasing power of Bart is $36,528.75.

To learn more about Inflation, click on the link given below :

https://brainly.com/question/1869740

#SPJ6

Melinda's family drove 378 miles in 9 hours. What was the average speed for the trip?

Answers

Answer: 42 MPH

I hope this helps, and Happy Holidays! :)

Answer:

Step-by-step explanation:

if Melinda's family drove 378 miles in 9 hours, her average speed is

378/9=42 miles per hour

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