Mathematics High School

What is the difference of the polynomials below?

(2x²-3x+8)-(3x²+7x--2)

A)-x²-4x+10
B)-x²-10x+10
C)5x²+4x+6
D)x²-10x+10

Answers

Answer 1

Answer:

B

Step-by-step explanation:

(2x² - 3x + 8) - (3x² + 7x - 2)

~Distribute the negative sign

2x² - 3x + 8 - 3x² - 7x + 2

~Combine like terms

-x² - 10x + 10

Best of Luck!

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Answers

Answer:

27 feet squared

Step-by-step explanation:

the formula for the area of a triangle is b(h)/2 so u just plug in the numbers into the formula from the question. we know that the base is 6ft long and the height is 9ft long.

A = b(h)/2

A = 6(9)/2

A = 27

therefore the area of the sail is 27 feet squared.

Is 27. Hopefully help

Question 6 of 19
Which of the following numbers is closest to 6?
A. V38
B. 39
C. 35
D. 134
SUBMIT

Answers

35 is the most closest to 6

Solve the inequality.−2(x − 3) − 4 ≥ 3x − 5(x − 1)

Answers

Answer:

0>3 i hope it helps

Step-by-step explanation:

Let's solve your inequality step-by-step.

−2(x−3)−4>3x−5(x−1)

Step 1: Simplify both sides of the inequality.

−2x+2>−2x+5

Step 2: Add 2x to both sides.

−2x+2+2x>−2x+5+2x

2>5

Step 3: Subtract 2 from both sides.

2−2>5−2

0>3

Estimate the square root of 17 to the nearest tenth.

Answers

Answer:

4.1

Step-by-step explanation: Step 1: Calculate. We calculate the square root of 17 to be: √17 = 4.12310562561766.

Step 2: Reduce. 4.12.

Step 3: Round. Round 4.12 so you only have one digit after the decimal point to get the answer: 4.1.

i need help with this geometry please

Answers

Answer:

how may i helps

Step-by-step explanation:

when it says parallel
ALWAYS KEEP THE SLOPE THE SAME
so if it’s y=3x-4
keep the 3x
and change the -4
so you could say
y= 3x -3 or y= 3x +5
both work

real life example of linear pairs

Answers

Answer:

Two angles are said to be linear if they contains a common ray and the sum of the two angles is equal to 180 degrees. A ladder placed against a building is a real life example of a linear pair.

Step-by-step explaination

hope this helped ✨

How to find rational numbers between any two numbers for example like finding six rational numbers between three and four please elaborate

Answers

Answer:

The whole series is:

3, 22/7, 23/7, 24/7, 25/7, 26/7, 27/7, 4

Step-by-step explanation:

Inserting Numbers Between Two Given Endpoints

Suppose we want to insert n equally-spaced numbers inside a given interval with endpoints [x,y].

To place n numbers, we need to open n+1 slots, at the end of which, a new number will be placed. The given interval is then divided into n+1 rational numbers of a value (y-x)/(n+1) each.

For example, let's add 6 rational numbers between 3 and 4. The width of the given interval is 4-3=1, and we need to place 6 numbers separated by 1/(6+1) = 1/7.

Start by the left endpoint:

3

The first number to add is 3+1/7=22/7

22/7

The second number to add is 22/7+1/7=23/7

23/7

The third number is 23/7+1/7=24/7

24/7

The next numbers follow the same pattern:

25/7

26/7

27/7

The last number is 28/7=4

4

The whole series is:

3, 22/7, 23/7, 24/7, 25/7, 26/7, 27/7, 4

We have inserted 6 rational numbers between 3 and 4.

Sue used to have a square garage with 286 ft squared of floor space. He recently built an addition to it. The garage is still a​ square, but now it has​ 50% more floor space. What was the length of one side of the garage​ originally? What is the length of one side of the garage​ now? What was the percent increase in the length of one​ side?

Answers

Answer:

New Length = 20.71 feet

Original Length = 16.91 feet

22.47%

Step-by-step explanation:

Original area of the square garage = 286 ft squared

Addition of 50% more space

New area of the garage = 286 + .50(286)

= 286 + 143

= 429 square feet

What was the length of one side of the garage​ originally?

Original area of the square garage = 286 ft squared

Area of a square = length^2

286 = length^2

Find the square root of both sides

√286 = √length^2

Original Length = 16.91 feet

What is the length of one side of the garage​ now?

New area of the garage = 429 square feet

Area of a square = length^2

429 = length^2

Find the square root of both sides

√429 = √length^2

New Length = 20.71 feet

What was the percent increase in the length of one​ side?

(New length - old length) / old length × 100

= (20.71 feet - 16.91 feet) / 16.91 feet × 100

= 3.8 feet / 16.91 feet × 100

= 0.2247 × 100

= 22.47%

Find the measures of the labeled angles

Answers

Answer:

135 degrees \

Step-by-step explanation:

5x= x+108

Subtract x from the right

4x= 108

divide by 4

x= 27

Substitute for x in the original equation

(x+108)

(27)+(108)

= 135 degrees

I need help solving this

Answers

i think the correct one is D

If f(x)=3x-7, find f(5). *

Answers

Answer:

f(5) = 8

Step-by-step explanation:

3(5)-7

15-7

8

Answer:

f(5)= 3(5) -7

f(5)= 15-7

f(5)= 8

Step-by-step explanation:

just substitute x for 5 and you get the answer

Write the equation of the line through the points (-3, 9) and (4, 2) in POINT-SLOPE FORM

Answers

Answer:

y-9=-1(x+3)

Step-by-step explanation:

The formula for point slope is y2-y1=m(x2-x1). So, we can use the values of the given points to solve the equation for m, or, the slope. We get an equation with the result of 2-9=m(4+3), which gives us the slope as -1. Now, substitute your xy values back in, to get the equation

The length of a rectangle is 6 feet and the width is 3 feet. Find the perimeter I
of the rectangle.

Answers

So for the perimeter, there will be 2 of each side. 3(2)+6(2)= 18.
The perimeter is 18 feet.

PLEASE HELP ASAP
Which angle is important using the SAS postulate?

Answers

2,3 I think I’m not sure

Line AB and line CD intersect at point E. If angle AEC= 5x and angle BED= x +28, font the value of x. (Number two)

Answers

Go to QuestionCove for better answers, it's too hard for me TwT

Answer:

2. x=7

3. x=11

Step-by-step explanation:

Faith is driving to a concert and needs to pay for
parking. There is an automatic fee of $7 just to enter
the parking lot, and when she leaves the lot, she will
have to pay an additional $2 for every hour she had her
car in the lot.

Answers

Answer: $7 + 2h = Will be the price she pays when she leaves.

Step-by-step explanation:

-1/4x + 6 = y; (2,4)

Answers

Answer:

The answer is y  =  4 x  −  4

Step-by-step explanation:

tomika ran 84 miles in 4 weeks. She ran 7 days each week. If she ran the same number of miles each day, how many miles did she run each day?

Answers

Three miles a day should be the correct answer

1 mile divided by 2 laps =

Answers

The answer is 800 meters
1 mile is 1600 meters or four laps
So if you divide 1600 by 2 you get 800 meters

There are 4 laps in one mile, therefore, "1 mile divided by 2 laps" = 2.

What is division?

Division is the process of dividing a number by a given number.

Given, the statement "1 mile divided by 2 laps".

The statement written in mathematical form is:

(1 mile)/2 laps

There are 4 laps in one mile, therefore, substitute 1 mile = 4 laps into the above equation:
(4 laps)/2 laps

= 2

Hence, "1 mile divided by 2 laps" = 2.

To learn more about division, click here:

https://brainly.com/question/10571790

#SPJ2

What is the relationship between the two shapes?
A. They are similar and congruent.
B. They are similar but not congruent.
C. They are congruent but not similar.
D. They are neither congruent nor similar.

Answers

i’d help you but i don’t know the two shapes !:( post a pic
i need the pic of the shapes

What is x please help quick

Answers

Answer:

100

Step-by-step explanation:

180 - 136 = 44 (The unknown angle)

180 - 44 -36 = 100 = x

Jason has three more than four times the amount of money that Jeff has. Together they have $72 How much does each person have? ​

Answers

Answer:

$58.20$13.80

Step-by-step explanation:

Let Jason's money be x and Jeff's money be y

x = 4y + 3x + y = 72

Substitute x in the second equation

4y + 3 + y = 725y = 69y= 69/5y = $13.80

Then

x = 4*13.8 + 3 = $58.2

Solve 3(4m - 6) = 12 and explain each step

Answers

distribute the 3 to 4m and 6. this makes 12m-18=12
now add 18 to both sides.
12m=30
now divide by 12
m=30/12

work out the value of 2 ^ 0​

Answers

Answer:

Anything to the 0 power is 1

Step-by-step explanation:

Answer:

2^0=1

Step-by-step explanation:

does 55,808 have 2 as a factor ?
does 55,812 have 2 as a factor ?
does 55,814 have 2 as a factor ?
does 55,816 have 2 as a factor ?
does 55,818 have 2 as a factor ?
answer yes or no

Answers

Answer:

Yes.

Yes.

Yes.

Yes.

Yes.

Step-by-step explanation:

Yes for all of them because they are even numbers

Can someone please help me with the B part? <3

Answers

Answer:

v = 13.5 m/s is the answer

mark me as brainliest if u found it helpful

The voltage V required for a circuit is given by [tex]v=\sqrt{PR}[/tex] , where P is the power in watts and R is the resistance in ohms.

How many more volts are needed to light a 100-watt light bulb than a 75-watt light bulb if the resistance of both is 110 ohms? Round answer to the nearest tenth.

Answers

Answer:

✓11000-✓8250=~ 14 volts

Step-by-step explanation:

the answer is the difference by 100-watt light bulb to a 75 light bulb.

so, all you have to do is this:

v1-v2--------> ✓PR-✓P2R2

so you'll have ✓100.110-✓75.110= ✓11000-✓8250= 14

I hope it helps

What is 15.5% as a fraction in simplest form

Answers

Answer:

Hope this helps

Step-by-step explanation:

15.5

10

(Computer won't do fractions so 15.5 out of 10 or 15.5 in decimal form)

9 — 3x = у
3х – у = -2

Answers

Answer:

This could be wrong, but i still wanted to help you.

Step-by-step explanation:

9-3x=y

+9      +9

3x=y

÷3   ÷3

x=y/3

Im sorry if this is wrong

Use the vertical line test to determine whether or not the graph is a graph of a function.

Answers

Answer:

25. Not a function because when you use vertical line test, you came across two points at the same time.

26. This is a function because when you vertical line test, you don't come across two points at the same time.

Step-by-step explanation:

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