4y²x(xy-2x²)=4y³x²-8y²x³
Answer:
4y³x² - 8x³y²
General Formulas and Concepts:
Pre-Algebra
Distributive PropertyAlgebra I
Exponential PropertiesStep-by-step explanation:
Step 1: Define
4y²x(xy - 2x²)
Step 2: Multiply
Distribute: 4y²x(xy) - 4y²x(2x²)Multiply: 4y³x² - 8x³y²Helo me plsim not good at math
Answer:
Step-by-step explanation:
bottom option
Help please due in 5 minutes :(
Answer:
Store A
Step-by-step explanation:
Store A: 5% of 50 is 2.5. If we subtract the discount from the original price, we get $47.50 as the discounted price
Store B: 20% of 60 is 12. If we subtract the discount from the original price, we get $48 as the discounted price
47.50 < 48
(hope this helps)
Answer:
Store A
Step-by-step explanation:
5% of $50 is $2.50, which means that store A is $2.50 off.
20% of 60 is %12, which means store B is $12.00 off.
However, store A has an original price that is $10 less than store A, and if you do $50 - $2.50 = $47.50 and Store B's price equals out to $60 - $12 - $48.00
this means that the full price with discount is lower for store A than it is for store B
The distance between two stations is 240km. A train takes 4hrs to cover the distance. Calculate the speed of the train
Answer:
The train was travelling at 60 km/h
Step-by-step explanation:
We're already given time and distance, and speed is just distance/time, so:
240km / 4h
= (240/4) km/h
= 60km/h
Jessie wants to save the same amount of money each week for a trip. He needs $3,060. If the trip is 36 weeks away, how much money should Jessie save each week?
85 dollars each week
help if you know how to do this- brainliestt
Answer:
95.5°F
Step-by-step explanation:
Given the regression equation :
y = 1.8x - 76.9 ; the relationship between temperature (°F) and number of ice cream sold
y = number of ice cream sold
x = temperature (°F)
The temperature when 95 iccream cones are sold will be ;
Here, y = 95
Using the model :
95 = 1.8x - 76.9
95 + 76.9 = 1.8x
171.9 = 1.8x
Divide both sides by 1.8
171.9 / 1.8 = x
95.5°F = x
Hence, temperature when 95 cones of ice-cream are sold is 95.5°F
To test whether an integer, $n$, is prime, it is enough to be sure that none of the primes less than or equal to the square root of $n$ divide $n$. If you want to check that a number between 900 and 950 is prime with this rule, what is the largest prime divisor you need to test
Answer:
the largest divisor is less than the square root of that number
Step-by-step explanation:
Pick any number between 900 and 950 . For example I choose 937 . Now taking the square root of 937 would give 30.61
So divide 937 with all the primes less than 30.61
937/2, 937/3, 937/5,...................937/29
29 would be the largest divisor which is less than the square root of 937 .
29< 30.61
But if you check 937 does not divide wholly with any of the primes hence it is a prime number itself.
If any number such 925 is chosen and it gets divided wholly by another prime like 5
925 /5= 185 so it is not a prime number
The value of a car depreciates every year ata constant rate, Gary bought a car for $25,000 in the year 2013. If the value of the car is expected to depreciate 15% annually, what can Gary expect for the value of his car in the year 2017?
Answer:
Step-by-step explanation:
15×4(which is the difference in the year)=60%(this is the depreciation percent)
The value of the car in 2017=40/100×25000=$10000
Your cell phone company charges $20 a month plus $0.50 per text message.
What is the linear equation that would represent the total amount paid in one month?
Answer:
20 + 0.50x = m
Step-by-step explanation:
Key:
x = number of messages
m = cost per month
Hope this helps and I hope u have an Amazing day!!
PLEASE I NEED HELP!! LOOK AT THE PHOTO!!
ILL GIVE POINTS!!
Answer:
The system of inequalities representing the situation above is given as:
Number of ink drawings x ≥ 0
Number of water colors ≥ 0
Number of preparation time: 0.3x + 0.5y ≤ 120
Number of packaging time: 0.2x + 0.2y ≤ 60
Step-by-step explanation:
They volunteered to spend:
Number of hours for preparation = 120
Number of hours for packaging = 60
Number of hours to prepare ink drawing = 0.3
Number of hours to prepare water colour = 0.5
Number of hours it takes to package each card = 0.2
x = number of ink drawings
y = number rod water colour
The system of inequalities representing the situation above is given as:
Number of ink drawings x ≥ 0
Number of water colors ≥ 0
Number of preparation time: 0.3x + 0.5y ≤ 120
Number of packaging time: 0.2x + 0.2y ≤ 60
Option d is the correct option
Permutations and Combinations : wake up cereal comes in 2 types, crispy and crunchy. If a researcher has 10 boxes of each, how many ways can he select three boxes of each for a quality control test?
Answer:
I'm pretty sure theres 11 ways
Write the following expression as a function of a positive acute angle. tan 245
a. tan65°
b. -tan65°
c. tan115°
ik its not b bc I got it incorrect so it is either a or c but I'm not sure please help
Answer:
I think it’s A, Good luck!
Step-by-step explanation:
find the measure of the line segment RB
9514 1404 393
Answer:
RB = 16
Step-by-step explanation:
When chords cross, the product of the lengths of the pieces of the chord is the same for all:
RB·RD = RE·RC
RB = RE·RC/RD = 8·14/7 = 8·2
RB = 16
A rectangular box has a volume of 108 cubic feet. How many cubic yards are in the volume of this box?
Answer:
3.996yd³
Step-by-step explanation:
A rectangular box has a volume of 108 cubic feet. How many cubic yards are in the volume of this box?
Given
Volume of a box = 108ft³
We are to convert the dimension to cubic yards. Using the conversion factor
1 ft³ = 0.0370yd³
108ft³ = x
Cross multiply
1 * x = 108 * 0.0370
x = 3.996
Hence the value in cubic yards is 3.996yd³
Answer:
Since there are 3 feet to a yard, there are $3^3=27$ cubic feet to a cubic yard. Thus, there are $108/27=\boxed{4}$ cubic yards in the volume of the box.
I WILL GIVE YOU BRAINLIEST IF YOU ANSWER CORRECT!!
The school library received a donation of 42 boxes of books. Each box contains 15-18 books. The library has 10 empty bookshelves. Each bookshelf can hold up to 60 books. Does the library have enough shelf space for all the new books? Explain how you solved the problem.
Answer:
No the school libary doesn not have enough pace for all the books. If the least amount of books came which is 15 books in all of 42 boxes (15*42), it would be 630 books and the school libary shelf can only hold 600 books becuase 10 shelves * 60 books on each shelf is 10*60 which is 600. If the least amount of books can’t even fit then the others wold defietnly not fit.
can someone help me with this question?
Answer:
what question
Step-by-step explanation:
write the polynomial in standard form given these zeros [-1; 3; 4]
Answer:
ummmm donooo
what sis this
1. $5,876 are distributed equally among 26 men. How much money will each person get?
Answer:
226
Step-by-step explanation:
Since the total is $5,876 you want to divide by the number of people 26 to equally split the money.
$5,876/26=226
is this gear reduction direct drive or overdrive
Answer:
overdrive
Step-by-step explanation:
i have nun but thuis it
Answer:
overdrive
Step-by-step explanation:
gear reduction. refers to the 5th and 6th gear
What is the equation of the new graph? Will mark brainlest
Answer:
c
Step-by-step explanation:
did the test
Andre ran 2 kilometers in 15 minutes, and Jada ran 3 kilometers in 20 minutes. Both ran at a constant speed. Did they run at the same speed?
Answer:
They did not run at the same speed. Calculation of their speed shows that Jada was running at a higher speed.
Step-by-step explanation:
Let's first calculate the speed of each person using the units provided so that we do not complicate the question.
speed = distance covered/time taken
Andre's speed = 2 km/15 min = 0.133 km/min
Jada's speed = 3km/20 min = 0.15 km/min
Clearly we can see that Jada was running at a higher speed than Andre. The question says they were running at constant speed not equal speed. That just means each person maintained their speed, they did not get faster or slower.
put the steps, for changing the formula for the arc length of a circle in degrees to the formula for the arc length of a circle in radians in the correct order.
9514 1404 393
Answer:
top down: 1, 5, 6, 4, 8, 2, 3, 7
Step-by-step explanation:
It appears the expected order may be ...
__
Write the formula for the arc length of a circle with central angle, θ, in degrees.
[tex]\textit{Arc Length}=\dfrac{\theta}{360^{\circ}}\cdot 2\pi r[/tex]
Replace 360° with 2π radians.
[tex]\dfrac{\theta}{360^{\circ}}=\dfrac{\theta}{2\pi}[/tex]
Replace the angle ratio in degrees with the angle ratio in radians.
[tex]\textit{Arc Length}=\dfrac{\theta}{2\pi}\cdot 2\pi r[/tex]
Simplify by cancelling
[tex]\textit{Arc Length}=\theta r[/tex]
Which is greater,4 4/10 or 32/10 ? Explain how you know.
Answer:
4 and 4/10 is greater
Step-by-step explanation:
4 and 4/10 is (4*10+4)/10=44/10
44>32
um i am not sure! i really am eed help! happy holidays too.
Best answer gets brainiest. Mackenzie went to the mall with her mom. First, they spent 15 minutes in the shoe store. Then they spent 1 hour shopping for a dress for Mackenzie. Finally, they spent 30 minutes eating dinner at the food court. It was 6:30 P.M. when Mackenzie and her mom left the mall. What time did they start shopping?
Include A.M. or P.M. in your answer.
Answer:
They started at 4:45 pm
Step-by-step explanation:
Time spend at the mall:
15 minutes in the shoe store
1 hour shopping for a dress
30 minutes eating
Total 1 hour 45 minutes
x + 1 hour 45 minutes = 6:30
Subtract 1 hours
5 : 30 pm
Subtract 45 minutes
4 :45 pm
They started at 4:45 pm
Find X and Y !!!!!
X=
Y=
Answer:
x=48 degrees
y=66 degrees
Step-by-step explanation:
180-114=66 degrees
y=66 degrees
180- (66+66)
180-132
48 degrees
x= 48 degrees
I don't really know how to explain it any better but I hope this helps.
Have a great day, you amazing bean child.
Tyree plans to use SSS to prove two triangles made from a sheet of paper are the same. Which diagram best supports his plan to use SSS?
Picture below
Answer:
Bottom left choice
Step-by-step explanation:
SSS congruence is side-side-side congruence, which is a method to prove triangles congruent by all three sides of the triangle being congruent. The other choices all involve congruent angles. Therefore, the bottom left choice is the best answer.
Also, notice that the bottom left choice shows which side is congruent to which. All three sides of one of the triangles are shown to be congruent with the corresponding side to the other triangle, therefore, congruent by SSS.
I hope this helps! :)
help please! thank ylu
Answer:
The Perimeter of a rectangle will be:
P = 252 in
Hence, option (E) is true.
Step-by-step explanation:
Given the rectangle with the sides
length [tex]l[/tex] = 14-5 inWith [tex]w[/tex] = 7×4 inWe know that the Perimeter of a rectangle can be calculated using the formula
[tex]P = lw[/tex]where l is the length, and w is the width
substituting [tex]l[/tex] = 14-5, [tex]w[/tex] = 7×4
P = (14-5) × (7×4)
P = 9 × 28
P = 252 in
Therefore, the Perimeter of a rectangle will be:
P = 252 in
Hence, option (E) is true.
Simplify the expression 0.8+0.65÷0.75
Answer:
1.66 (appx)
Step-by-step explanation:
According to BODMAS rule , we should solve division operation in the expression first , then we'll finish the addition opearation .
[tex]0.65 \div 0.75 + 0.8[/tex]
[tex] = > \frac{65}{100} \div \frac{75}{100} + \frac{8}{10} [/tex]
[tex] = > \frac{65}{100} \times \frac{100}{75} + \frac{8}{10} [/tex]
[tex] = > \frac{13}{15} + \frac{8}{10} [/tex]
[tex] = > \frac{(13 \times2) + (8 \times 3) }{30} [/tex]
[tex] = > \frac{50}{30} = \frac{5}{3} = 1.6666.........[/tex]
Help me please ASAP PLEASEEEE
Answer:
1 ,3,4
Step-by-step explanation:
Answer:
1, 4 and 5
Step-by-step explanation:
sorry if im wrong
Vuu try further gridiron
Answer:
A. M and P
Step-by-step explanation:
To be perpendicular, they only need to have opposite reciprocal slope. For example, the lines, y=3x+8 and y= -(1/3)x-3 would be perpendicular because -1/3 is the opposite reciprocal of 3.