Answers
Answer:
B. 2x³ + 14x²
General Formulas and Concepts:
Pre-Algebra
Distributive PropertyAlgebra I
Terms/Coefficients/DegreesExponential Rule: [tex]\displaystyle b^m \cdot b^n = b^{m + n}[/tex]Geometry
Area of a Rectangle: A = lwStep-by-step explanation:
Step 1: Define
l = 2x²
w = x + 7
Step 2: Find A
Substitute [AR]: A = 2x²(x + 7)Distribute 2x²: A = 2x³ + 14x²Related Questions
Of the following points, name all that lie on the same vertical line?
(-2,6) (6,2) (-2,-6) (-6,2)
Answers
Answer:
(-2,-6) (6,2)
Step-by-step explanation:
If (3a + 3b + 1) (3a + 3b - 1) = 80, then what is a + b?
Answers
Answer: a + b = 3 - maybe
Step-by-step explanation:
( 3a + 3b + 1 )( 3a + 3b - 1 ) = 80
Expand
9a² + 9ab - 3a + 9ab + 9b² - 3b + 3a + 3b - 1 = 80
Simplify
9a² + 9b² + 18ab - 1 = 80
move the 1 over
9a² + 9b² + 18ab = 81
divide by 9
a² + b² + 2ab = 9
not really sure after this part
move the 2ab over
a² + b² = 9 - 2ab
square root both sides
a + b =
simplify
a + b = 3 -
Perla drives 25 miles south and then drives east. After arriving at her destination, it is determined that she is 60 miles (diagonally) from where she started. How far east did she drive?
(Pythagorean Theorem-Unknown Leg
Answers
Answer:
54.54
Step-by-step explanation:
Will give brainliest if you are correct
Answers
2^5 times 3 goes under 96
2^3 times 12 goes under 96
2^4 times 6 goes under 96
6^2 times 3 goes under 108
Hope that helps and please give brainliest
Together, Rhonda and Margo saved $478.50. If Rhonda saved $225 of that total, how much did Margo save? Select the addition equation that could be used to find how much money (m) Margo saved? Choose ALL that apply.
Answers
Answer:
$253.5
Step-by-step explanation:
Total amount saved = Amount Rhonda saved + Amount Margo saved
= $478.50 − $225
Amount Margo saved = $253.5
 Can someone pleaseeee help if you’re correct I’ll give u brainlist
Answers
Answer: You're lucky I helped you(◔_◔)
Step-by-step explanation:
JK = KD = l
JD = l√2
l√2 = JD
l√2 = 8√2
Divide both sides by √2
l = 8
JK = 8m
KD = 8m
Factor 15x + 35 using the GCF.
A. 5(3x + 7) B. 5(3x + 35) C. 15(x + 2) D. 7(2x + 5)
MARKING BRAINLIST!
Answers
7:x=2:3
Solve the equation
Answers
Answer:
10.5 =x
Step-by-step explanation:
We can rewrite this as a ratio
7 2
---- = ------
x 3
Using cross products
7*3 = 2x
Divide each side by 2
21 /2 = 2x/2
10.5 =x
I NEED HELP PLZ I WILL GIVE THANKS AND BRAINLIST
Answers
Trisha has $100 to spend on presents for 4 friends. She wants to spend the same amount on each friend. Write and solve an inequality to determine how much can she spend on each friend?
Answers
Answer:
4x<=100
Step-by-step explanation:
she has 4 friends to spend the 100 dollars on because she wants to spend the same amount on each friend you can multiply 4x. you can't spend more than 100 but you can spend 100$ so it would be <=100
Find angle x and y. Please show step by step process.
Answers
Answer:
x = 60, y = 25
Step-by-step explanation:
Δ ABC has 3 congruent sides and is equiangular, thus
the 3 angles are congruent, all 60°
x = 60
∠ ABC and ∠ CBD are adjacent and supplementary, sum to 180° , then
∠ CBD = 180° - 60° = 120°, so
y = 180 - (120 + 35) = 180 - 155 ← sum of angles in triangle
y = 25
HELPPPPPPP PLS! 9th Grade Math
Answers
Step-by-step explanation:
i forgot this im in college XD
A 30-mile segment of road needs to be paved. 6 miles have already been completed. The paving crew can complete 3 miles of paving per day. How many days will it take them to finish?
Answers
Answer: 8 days
Step-by-step explanation:
6 miles has been paved already.
Number of miles left = 30 - 6
= 24 miles
If they are paving at 3 miles a day, the days they will take to finish is:
= 24/3
= 8 days
Answer:
8 days
because if they are paving at 3 miles a day, the days they will take to finish is: = 24/3
A rectangular prism has a length of 16in, a height of 15in, and a width of bin. What is
its volume, in cubic in?
Answers
Answer:
volume = 240b in³
Step-by-step explanation:
Width is b in
Volume = length * height * width
then:
volume = 16in * 15in * bin
volume = 240b in³
solve by elimination
3x+2y=17
x+2y=5
Answers
Answer:
x = - 3 and y = − 4
Step-by-step expla
nina is traveling to Canada and will change $350 dollars into Canadian dollars at the currents exchange rate $1 is equal to $1.27 Canadian. how many Canadian dollars will she get for her tip?
nina will get _____ Canadian dollars.
Answers
Answer:
444.5
Step-by-step explanation:
Multiply the amount of money being exchanged to the exchange rate, in which is $350 to $1.27. Multiply them and you will get your answer.
Answer:
$444.50
Step-by-step explanation:
This is the ratio from American currency to Canadian currency
The shoe store bought a pair of shoes for from the wholesaler for $45, and then marked them up 80%.
How much $ did the shoes get marked up by?
how much did the shoe company charge for the shoes?
Answers
Answer:
$81
Step-by-step explanation:
You need to divide 45 by 10 to get 10% of 45. 10% of 45= 4.5. Then, multiply 4.5 by 8 to get 80% of 45. Then, add 36 to 45 to get 81 dollars final price.
3х + 4y + 2 + 6y +3
HELP QUICK 15 POINTS A
Answers
Answer:
3х+4y+2+6y+3 = 5+10y+3x
Step-by-step explanation:
I don't know how to do these
need help
Answers
Answer:
spinner 2 is 14
Step-by-step explanation:
7+3=10
10+4=13
can someone help pls 10 points
Answers
Answer: it should be 3/4
Step-by-step explanation:
I need help I don’t know if these answers are right or not
Answers
Answer:their right I did calculate and thanks for the points :D
Step-by-step explanation:
Starbucks sells their coffee for $3.36 for 24 ounces
OR
Circle K sells their coffee for $2.40 for 16 ounces
Which is a better buy and by how much?
Answers
Answer:
Starbucks by 1 cent difference.
Step-by-step explanation:
Divide: 3.36 divided by 24 to find Starbucks. You get 14 cents per ounce
Divide: 2.40 divided by 16 to find Circle K. You get 15 cents per ounce
Compare: Starbucks is cheaper by 1 cent.
Answer:
starbucks is a better by because they each sell one ounce for the same price. from starbucks you get more ounces for the same price as you would at circle k
Step-by-step explanation:
starbucks: 24 / 336 = $0.07
1 ounce sells for about $0.07
circle k: 16 / 240 = 0.066 = (rounded) 0.07
1 ounce sells for about $0.07
Needz helllllpppppsss plzzzzzzzzzzzz
Answers
Coach S wants to tie a ribbon around the trunk of an oak tree that has a circular trunk about 28 inches in diameter. Not counting the ribbon needed to make a bow, about how many inches of ribbon are needed to just reach around the tree?
Answers
Answer:
87.92 or 88 inches(simplified)
Step-by-step explanation:
circumference = 2 Pi R R= 1/2 diamater
ribbon = circumference
ribbon = 2x3.14x14 = 87.92 inches
(5x-3)(6+x)=0
Hi I can't solve this could someone pls help me? ill give brainliest
Answers
Answer:
I think answer is 6X-18=0.
Step-by-step explanation:
(5X-3) (6+X)=05X-3*6+X=05X+X-3*6=06X-18=0Answer:
Either, x=3/5 or, x=-6
Step-by-step explanation:
(5x-3)(6+x)=0
Either,
5x-3=0
5x=3
x=3/5
Or,
6+x=0
x=-6
Help! Please and thank you
Answers
Answer:
Second Choice.
Step-by-step explanation:
The shifting of graph depends on value of b.
[tex]y = mx + b[/tex]
If b > 0, the graph shifts up.
If b = 0, the graph passes origin point.
If b < 0, the graph shifts down.
The only thing that's matter if the graph shifts up or down is about if the value of b is in negative or positive.
Why do the roots of a quadratic equation have the opposite sign of the factors of a quadratic equation
Answers
Answer:
To find the roots of the quadratic equation we set the factors of the quadratic equation equal to 0.
Step-by-step explanation:
Consider the provided information.
Roots of the equation is x-intercepts or zeros of the given equation.
So, By definition, the value of The y-coordinate is zero for points situated on the x-axis.
Thus, we can find the roots of a quadratic function, by putting f (x) = 0.
Now, let (x-a)(x-b) is the factor of any quadratic equation.
To find the roots of the quadratic function we will put our factor equal to 0.
[tex](x-a)(x-b)=0[/tex]
Now by the zero product property either x-a=0 or x-b=0
[tex]x-a=0[/tex] then [tex]x=a[/tex]
or
[tex]x-b=0[/tex] then [tex]x=b[/tex]
So, we can say that to find the roots of the quadratic equation we set the factors of the quadratic equation equal to 0.
WORTH 13 POINTS PLEASE ANSWER SOON
Kaya's family spends $105 to rent a boat for 7 days. The cost, c, of the boat rental is
proportional to the number of days, d, the family rents the boat.
A. How much does it cost, in dollars, to rent the boat for a day?
- My answer is $15
B. Create an equation using c and d to represent the proportional relationship.
•PLEASE EXPLAIN HOW TO DO THROUGHLY I AM TIERD AND MY BRAIN IS NOT WORKING- AND DON’T WORRY I HAVE THE FIRST ANSWER•
Answers
https://brainly.com/question/15448464
THIS SHOULD HELP. SOMEONE ELSE IN THE PAST HAD ASKED THE SAME QUESTION. GO HAVE A LOOK.
BRAINLIEST ARE APPRECIATED :)
Answer:
15
Step-by-step explanation:
Solve the system of linear equations by elimination.
9x+y=2
−4x−y=−17
Answers
Answer: x = -3 y = 29
Step-by-step explanation:
9x + y = 2
-4x - y = -17
5x = -15
Divide both sides by 5
x = -3
9x + y = 2
Substitute -3 for x
9 (-3) + y = 2
-27 + y = 2
Add 27 to both sides
y = 29
Hope I helped!
Henry has q5 lawns mowed out of total 60 lawns what percent of the laws does. Henry still have to mow
Answers
Answer:
Henry still has to mow 75% of the laws.
Step-by-step explanation:
It is given that Henry has 15 lawns mowed out of a total of 60 lawns.
We need to find: What percent of the lawns do Henry still have to mow?
Henry has 60 lawns in total.
He mowed 15 out of them.
The percentage of lawns mow = [tex]\frac{15}{60} \times 100=25 \%[/tex]
Henry mowed 25% of total lawns.
The percent of laws still have to mow = 100%-25%
The percent of laws still have to mow = 75%
Hence, Henry still has to mow 75% of the laws.