Answer:
D: 9x^2-12y^2-11x
Step-by-step explanation:
(8x^2-9y^2-4x)+ (x^2-3y^2-7x)
1. Eliminate redundant parentheses
8x^2-9y^2-4x+ x^2-3y^2-7x
2. Combine like terms
9x^2-12y^2-11x
3. Solution
9x^2-12y^2-11x
Alan bought a package of 6 socks for $8.99. Brittney bought a package of 12 socks for $16.25. which was the better buy? explain
Answer:
12 socks for $16.25.
Step-by-step explanation:
divide 8.99 by 6 you get 1.49.
divide 16.25 by 12 you get 1.35.
clearly, the second one is cheaper.
Answer:
Brittney’s was the better buy.
Step-by-step explanation:
The first option was 1.49 per unit and the second was 1.35 per unit.
13. Tell whether the lines through the given points are parallel,
perpendicular, or neither.
Line 1: (1, 2), (2,0)
Line 2: (0-1), (-2,-2)
A
parallel
B
perpendicular
neither
Answer:
B
Step-by-step explanation:
A furniture store pays $210 to stock a coffee table. It sells the table with a 60% markup. What is the selling price of the coffee table?
NEED HELP ASAP!!!!
What step below would isolate a? 3/5a= 6
Answer:
multiply both sides by 5 and divide both sides by 3
Step-by-step explanation:
3/5a=6
multiply both sides x 5
3a=30
divide both sides by 3
a=10
Directions: Solve for x. Round your answer to the nearest tenth.
12
14
Answer:
Show us the equation
Step-by-step explanation:
Could you put a screenshot of it
Answer:
may i see the picture?lol
Step-by-step explanation:
Please answer with the correct letter for brainliest
Answer:
[tex]Given~inequality~is\\2(x-3) -5x<x-2\\or, 2x-6-5x<x-2\\or, -3x-6<x-2\\Subtracting~x~on~both~sides,\\-3x-x-6<x-x-2\\or, -4x-6<-2\\Adding~'6'~on~both~sides,\\-4x-6+6<-2+6\\or, -4x<4\\Dividing~'-4'~on~both~sides,\\\frac{-4x}{-4}>\frac{4}{-4} \\[Sign ~of~ inequality ~is~ reversed ~on ~dividing~ on~multiplying ~both ~sides~ by~ a~ negative~ number]\\or, x>-1 \\[/tex]
So, the required answer is C. [Look at the screenshot]
Help please!!!!!!
Please answer quick!!
Answer:
Option 3
Step-by-step explanation:
the symbol your question is showing is "greater than or equal to"
when a line includes "or equal to", the circle will be filled in. also, since the symbol is going towards 5, it is considered a greater than symbol. so, you'd want to choose the option with a filled in circle and an arrow pointing to the right.
since option 3 has a filled in circle and has its arrow pointing towards the positive (or right) side of the line, it should be option 3.
Help im behind my math class. pls
Answer:
Please check the explanation.
Step-by-step explanation:
From the given diagram, we can observe that r and s are the two parallel lines intersected by the two transversal lines.
Therefore, the pairs of alternating interior angles formed by the two transversal lines are:
∠1 & ∠5 ∠2 & ∠4∠2 & ∠7 ∠3 & ∠6We know that alternating interior angles formed by a transversal line are congruent.
Thus,
∠1 = ∠5 ∠2 = ∠4∠2 = ∠7 ∠3 = ∠6Part a)
Given
m∠1 = 3x + 42
m∠5 = 8x - 8
As
∠1 = ∠5
So
3x + 42 = 8x - 8
flipe the equation
8x - 8 = 3x + 42
subtract 3x from both sides
8x - 8 - 3x = 3x + 42 - 3x
5x - 8 = 42
add 8 to both sides
5x - 8 + 8 = 42 + 8
5x = 50
divide both sides by 5
5x/5 = 50/5
x = 10.0000 (Rounded to four decimal places)
Thus, the value of x = 10.0000 (Rounded to four decimal places)
Part b)
Given
m∠6 = 12°
It is clear that angles ∠6 and angle ∠7 lie on a straight line.
Thus,
The sum of ∠6 and ∠7 is 180°.
∠6 + ∠7 = 180°
substituting m ∠ 6 = 12° in ∠6 + ∠7 = 180°
12° + ∠7 = 180°
subtract 12 from both sides
12° + ∠7 - 12° = 180° - 12°
∠7 = 168°
Thus, measure of angle ∠7 = 168°.
We already know that alternating interior angles formed by a transversal line are congruent.
∠7 and ∠2 are alternating interior angles.
Thus,
∠2 = ∠7
As ∠7 = 168°.
Therefore,
∠2 = 168°
Hence, we conclude that
∠2 = 168°
5. Given the function f(x) = 3(1.55)x.
a. Does the above exponential function represent exponential growth or decay?
b. State the percent increase of the above function.
c. State the growth factor (or multiplier) of the above function.
d. What is the initial amount of f(x)?
Answer:
it A ;)
Step-by-step explanation:
please help!!!!! Need solvingg
Answer:
A, 22
Step-by-step explanation:
DOF-DOE=EOF
50-28=22 degrees
Answer:
A=22
Step-by-step explanation:
∠DOF=∠DOE+∠EOF
so ∠EOF=∠DOF-∠DOE=50°-28°=22°
Given that y varies directly with x, use the specified values to write a direct 1 point
variation equation that relates x and y. x = 24 y=-6*
Answer:
y = - [tex]\frac{1}{4}[/tex] x
Step-by-step explanation:
Given that y varies directly with x then the equation relating them is
y = kx ← k is the constant of variation
To find k use the condition x = 24, y = - 6
- 6 = 24k ( divide both sides by 24 )
[tex]\frac{-6}{24}[/tex] = k , that is
k = - [tex]\frac{1}{4}[/tex]
y = - [tex]\frac{1}{4}[/tex] x ← equation of variation
24:50 as a simplified fraction
Answer:
12/25
Step-by-step explanation:
24/50 =12/25
÷2
Answer:
12/25 is the lowest terms it can be simplified
Amanda bought 4 pairs of jeans for $7140. How much
would she need to pay for 8 pairs of jeans?
Answer:
$14,280
Step-by-step explanation:
4 Pairs is $7140
4 x 2 = $14,280
Times by 2 as you are doubling.
2 (x+5) = }(x - 4) ?
Answer:
X = -14
All you have to do is type in 2(x+5)=(x-4) in to a algebra calculator and you will get -14
A bag contains:
• 5 red marbles
• 6 blue marbles
• 3 green marbles
• 4 black marbles
• 2 yellow marbles
A marble will be drawn from the bag and replaced 100 times. What is a reasonable prediction for the number of times a green or black marble will be drawn?
Answer:
35/100
Step-by-step explanation:
P(green or black) = 3/20 + 4/20 = 7/20
7/20 = 35/100
Answer:
35 times
Step-by-step explanation:
all of them added together is 20 7/20 7x5=35 because 20 goes into 100 5 times
What is the value of x
8in. x 15in. 1/2 vdwvw
Answer:
HUH? WHAT?
Step-by-step explanation:
Find the sum (7x + 2) + (-8x + 5).
ur supposed to like simplify it btw its for my sister
Answer:
-x+7
Step-by-step explanation:
(7x + 2) + (-8x + 5)
Combine like terms
7x -8x +2+5
-x +7
Answer:
-x + 7. It's honestly quite easy if you just try, I have a recommendation for you. Use an algebra solver website
Please help due ASAP
Hxhdbdidhdbbr
15 songs that are the saame lenght are preformed during a concert. if the concert lasts 27 minutes and 30 seconds, how long is each song?
A family purchased tickets to a museum and spent a total of $38.00. The family purchased 4 tickets. There was $1.50 processing fee for each ticket
From my work, i got 4x+$1.50=48 I hope it helps you.
if i got it wrong please forgive me! also if it is Okie with you, Can i please have brainliest? Thank you!
What is the area of the envelope (including the stamp area)
Answer:
184
Step-by-step explanation:
9x16 = 144
16 x 1/2 x 5 = 40
40+144= 184
(sorry I didn't include the units)
answer these questions if ur smart
Answer:ayyyy more free points
Step-by-step explanation: so i can ask questions
\
* A car is 15 ft long. A model of the car has a scale of 1 in: 2 ft. How long is the model? Round to the nearest tenth, if necessary. Numerical answer only.*
Answer:
7.5 in
Step-by-step explanation:
PLEASE HELPPPP WILL MARK BRAINLYIST
please help thanks.
.___________.
Answer:
I am very positive that the answer is A.
Step-by-step explanation:
I believe it is A, because if you look at each of the input numbers there, they are 12, which divided by 2 is 6. 18, which divided by 2 is 9. 20, which divided by 2 is 10. 22, which divided by 2 is 11. This problem is a division problem.
In trapezoid MNPQ shown below, MN QP,. 108 m M. ∠ = ,. 4 15 m P x. ∠ = - , and. 3 21 m Q x. ∠ = + . Explain why m N. ∠ must be 127
Answer:
The answer is below
Step-by-step explanation:
A trapezoid is a quadrilateral (has four sides and four angles) with a pair of opposite parallel sides. The pair of opposite parallel side is known as the base. Also, the angles on the same leg of a trapezoid (adjacent angles) are supplementary (add up to 180°).
In trapezoid MNPQ:
∠M + ∠Q = 180° (angles on the same leg are supplementary)
108 + (3x + 21) = 180
3x + 129 = 180
3x = 51
x = 17
Also:
∠N + ∠P = 180° (angles on the same leg are supplementary)
∠N + (4x - 15) = 180
∠N = 180 - (4x - 15)
∠N = 180 - 4x + 15
∠N = 195 - 4x
substitute x = 17°:
∠N = 195 - 4(17)
∠N = 127°
Please help please
It due asap
Answer:
D) About 40 miles
Step-by-step explanation:
Using the Pythagorean theorem, you caculate c=√ a^2 + b^2
Oceanfront to Landview is 5(5) units = 25
Landview to Seaside is 6(5) units = 30
25^2 = 625
30^2 = 900
√625 + 900 = 39.0512....
Basically it’s 40 miles
Answer:
The answer is D, about 40 miles.
Step-by-step explanation:
Use the pythagorean theorem.
Distance between Seaside & Landview: 6
Distance between Landview & Oceanfront: 5
6^2 times 5^2 = [tex]\sqrt{61}[/tex]
[tex]\sqrt{61}[/tex] times 5 = 39.05124838
39.05124838 ≈ 40
Sorry I took so long. I hope this helps!
please help it due asap
Answer:
c.29
Step-by-step explanation:
Your equation is 3x+18+75=180
Then, you combine like numbers so 75+18 so your equation is now 3x+93=180
Next, you subtract the 93 and get 3x=87
Finally, divide 87 by 3 to get x=29!!
Hope this helps have a great day :)
which table of ordered pairs represents a function?
A
x 4 4 4 4 4
y -7 -5 -2 1 5
B
x 0 1 2 3 4
y 3 2 6 3 11
C
x -3 -2 1 6 -2
y 1 2 3 4 -1
D
x -2 -1 0 0 1
y 4 4 4 -2 -2
Answer:
B
Step-by-step explanation:
if there is two or more of the same X's it can't be a function. however if there is 2 or more of the same Y's it can still be classified as a function