Answer:
8a2-8b2+7ab
Step-by-step explanation:
Putting together all of the a2 gets you to 8a2
Putting together all of the b2 gets you to -8b2
Putting together all of the ab gets you to 7ab
For all parts of this question, use the function y + 2 = 3(x + 4)
Part A: Complete the x-y table:
i would start by simplifying the equation to get y by itself, you don't need to do this, but it makes it a little easier
y + 2 = 3 ( x + 4) distribute the 3 through the parenthesis
y + 2 = 3x + 12. subtract 2 from both sides
y = 3x +10
now to fill in the chart simply plug in the value of x to see what value of y it produces
y = 3(-2) +10
y = -6+10
y = 4
(-2,4)
y = 3(0) + 10
y = 0 + 10
y = 10
(0,10)
y = 3(2)+10
y = 6 + 10
y = 16
(2,16)
y = 3(4) + 10
y = 12 + 10
y = 22
(4,22)
4. Margo is shopping for art supplies. She has a budget of $50 to spend. She buys 8 packages of
construction paper and receives $33.12 in change. Which equation could be used to find the
price of one package of construction paper?
A. 50 - 8x
B. 50- 33.12+8x
C. 33.12 = 8x
D. 50+ 33.12 - 8x
Answer:
I'm not sure but maybe try B
The sum of 2 of the exterior angles of a triangle is 222 degrees. What is the measure of the third exterior angle?
Answer:
Exterior angles always add up to 360 degrees, therfore 360 - 222 = 138
Step-by-step explanation:
360 - 222 = 138
the answer to your question is 138degrees.
For any shape the exterior angles will always add up to 260 degrees.
Hope this helps in the future!
Answer:
360 - 222 = 138
the answer to your question is 138degrees.
For any shape the exterior angles will always add up to 260 degrees.
Step-by-step explanation:
what is the density of a pine log if the weight is 42.63 lbs, radius 5 in, length 30in
Answer:
Step-by-step explanation:
density is weight divided by volume. And the volume of a log is like a cylinder.
V=hpi(r^2) in this case
V=25(30)pi=750pi so
d=(42.63)/(750pi)
d=0.018 lb/in^3
a. a triangle with one right angle and two congruent sides
Answer:
is an isosceles right triangle, angles 45, 45, & 90 degrees
Step-by-step explanation:
STEW Merlin made 7
−
8
gallon of stew. Then he
ate 3
−
4
gallon of stew. How much stew was left over?
What is the answer for x?
-7=3.5+5x
Answer:
x=-2.1
Step-by-step explanation:
What is the ratio of the length of the rectangle to its width 24 and 20
bob has at least $5000 in savings. his savings balance is more than 3 times greater than his checking balance
Answer:
so then it to be 25000
Step-by-step explanation:
Solve for x. Round to the nearest tenth as needed
Step-by-step explanation:
by Pythagoras :
H²= B²+ P²
(7+x)²= x²+ 9²
49 + 14x + x² = x²+81
14x = x² -x²+81 - 49
14x = 32
x = 32/14 = 16/7 = 2.28 cm = 2.30 cm
plz mark my answer as brainlist plzzzz.
hope this will be helpful to you .
All of the following expressions are equivalent except _____.
7 - x
x - 7
- x + 7
7 + (- x)
Answer:
x - 7
Step-by-step explanation:
7 - 1= 6
1 - 7= -6
-1 + 7= 6
7 + (-1) =6
suppose the company's cost per 1 gallon is $2.70 what is the markup if they sell each gallon at $3.20 then what is the markup if they sell each gallon at $3.50
Answer:
A= 50cents markup B=80 cents markup
Step-by-step explanation:
U just subtract the markup by 270 then bam
Please help!!! If you can
Answer:
Im guessing its B. Im sorry of this didnt help.
Step-by-step explanation:
[tex]y = 12000 {(1.04)}^{30}[/tex]
Merton's population = 38920.77012
//
18000 + 30(500) = 33000
Hapville's population = 33000
//
38920.77012 - 33000 = 5920.77012
5920.77012 ---> 6000
The answer is B.
Write a proportion (or equation) to find the part, whole or percent. Then, solve.
What percent of 50 is 10?
Proportion or equation:
Answer: _______________________
What number is 50% of 20?
Proportion or equation:
Answer: _______________________
12 is 3% of what number?
Proportion or equation:
Answer: ______________________
Answer:
20%
Step-by-step explanation:
What is 10 as a percentage of 50? 1000 ÷ 50 = 20. Answer: 10 is 20% of 50.
What is the value of x?
x= 67°
hope that helps:)
If the length of a basketball court is 32 meters and the width is 9 meters, what is the diagonal of the basketball court? Round to the nearest tenth, if needed.
A. 33.2
B. 23
C. 30.7
D. 41
Answer:
the answer is a
Step-by-step explanation:
Please help on both! Will give brainliest!!
Anyone able to help?
Your teacher didn't pick the most simple way to do this problem, the steps your teacher gave is confusing. Using the same concept, I am going to do this my way then I will show a different method.
3x^2+24x+9=0
x^2+8x+3=0
x^2+8x+16+3=16
(x+4)^2=13
x+4=±[tex]\sqrt13[/tex]
x=-4±[tex]\sqrt13[/tex]
This is how you are suppose to solve it with completing the square and all the steps, to fill your teacher's blank you will have to go from my answer to how your teacher want you to write it.
*Now I am going to show you a way to solve this with the quadratic formula.
I am going to use the main formula because its more clear although the even formula is easier for this question.
3x^2+24x+9=0
x=(-24±[tex]\sqrt{24^2-4*3*9}[/tex])/2*3
x=(-24±[tex]\sqrt{576-108}[/tex])/6
x=(-24±[tex]\sqrt{468}[/tex])/6
since 468 is a multiple of 36
x=(-24±6[tex]\sqrt{13[/tex])/6
x=-4±[tex]\sqrt{13}[/tex]
This bottom way is really good if you can calculate quickly, with a lot of practice this way is much better for solving quadratic equations that cannot be factored.
Q2.
(a) Expand and simplify (m-8)(m + 5)
We can split the m-8 into 2 terms m and -8 each multiplying the next ( ) like this...
m(m+5)-8(m+5)
Now we expand
m^2+5m-8m-40
then simplify!
m^2-3m-40
Done!
If you have any more questions put them in the comments and brainliest will be appreciated
Solve for value the two angles in the triangle and classify the triangle using the sides and angles
Step-by-step explanation:
x + 15 +2x + 66 = 180
3x + 81 = 180
3x = 99
x = 99/3 = 33
plz mark my answer as brainlist plzzzz.
hope this will be helpful to you.
Answer:
The angles are 66, 66, and 48 degrees
The triangle is isosceles because 2 angles are equal, thus two leg lengths are equal
Step-by-step explanation:
the sum of all three angles in a triangle = 180 degrees
66 + 2x + (x+15) = 180
simplify
66 +3x + 15 = 180
reduce
81 + 3x = 180
subtract 81 from each side
81 - 81 + 3x = 180 - 81
3x = 99
divide both sides by 3
3x/3 = 99/3
x = 33
Mrs. Brownstone brought 56 liters of juice for the fifth grade party. How many milliliters of juice did she bring?
Answer:
56000 milliliters
1 liter = 1000 milliliters
56(1000)=56000
Step-by-step explanation:
You have two cans of paint, Can A and Can B. Can A contains 80% red paint and 20% blue. Can B contains half blue and half red. How much blue paint should be added to 3 liters of Can A to make it the same as Can B?
Answer:
0.9 liters.
Step-by-step explanation:
The difference between 20% of 3 and 50% of 3 is 30%. 30% of 3 liters is 0.9 liters so this is what you add to can A.
A pair of shoes cost $75. This is $35 less than the cost of a pair of jeans write and solve an equation,Using n for the variable to find the cost of the jeans
Answer:
n=75 pair of shoes
n-75=35 equation
n=35+75=110
cost of jeans=110
Please help due today in 10 minutes
Answer:
I can't help it's past due date. sorry
Step-by-step explanation:
PLEASE HELP, THIS IS DUE IN 20 MINUTES
Given the following proportion, solve for the length of the triangle "n".
n/4 = 12/(n-2)
What is the answer for x?
5=-2.5x+8
What property is -2x–6+4=-2? (see image)
geometry// please help!
15 points for an answer for this question
Answer:
Is it Khan Academy? You do 5.8 - 2.7 = 3.1
Step-by-step explanation:
Hope that helps!
Which of the following numbers has the smallest value?
19.45
19.445
19.5
19.454
Answer:
19.445
Step-by-step explanation:
