Answer:
the dimensions are 3 and 6 feet
Step-by-step explanation:
xy=18
x+y=9
x=9-y
y(9-y)=18
-y^2+9y -18=0
y^2-9y+18=0
(y-6)(y-3)=0
if y=6, x=3
if y=3, x=6
if a system of linear equation has an infinite number of solutions, what do you know about the graph of the system?
a. the lines intersect at one point
b. the lines are parallel
c. the lines are the same
d. the lines cannot he graphed
Answer:
c. the lines are the same
Step-by-step explanation:
A system of linear equations has an infinite number of solutions because the lines are the same. The correct answer would be an option (C).
What is the Linear equation?A linear equation is defined as an equation in which the highest power of the variable is always one.
If a system of linear equations has an infinite number of solutions, it means that the equations are equivalent and represent the same line in the coordinate plane.
Therefore, the graphs of the two equations will be the same line, meaning that the lines are coincident. They won't intersect at one point, nor will they be parallel, as the definition of an infinite number of solutions is that they are the same line. And they can be graphed, as they represent a single line in the coordinate plane.
Hence, the correct answer would be option (C).
Learn more about the Linear equations here:
https://brainly.com/question/13738061
#SPJ6
What is k^2- 12k+20 in factored form
Answer:
k^2-12k+20
=k^2-10k-2k+20
=k(k-10)-2(k-10)
=(k-2)(k-10)
A rectangle has a height of 4x and a width of 3x + 1.
Answer:
area of rectangle= length x width
height 4x and width = 3x+1
area of recatangle=4x(3x+1)
=12x^2+4x
perimeter of recatangle=4x+3x+1+4x+3x+1=14x+1
Can someone PLEASE solve this quadratic equation by factoring with the steps? :(
y= x squared +2x - 2
Answer:
There are no simple factors to this expression. You can however solve for x, giving you:
x = -1 ± √(y + 3)
Step-by-step explanation:
There is no simple pair of factors to this equation, so we'll have to go through the full process. You can see that by observing that there is no pair of rational numbers that add to make 2 and multiply to make -2. We can however solve for x:
[tex]y = x^2 + 2x - 2\\y + 2 = x^2 + 2x\\y + 3 = x^2 + 2x + 1\\y + 3 = (x + 1)^2\\(x + 1)^2 = y + 3\\x + 1 = \pm \sqrt{y + 3}\\x = -1 \pm \sqrt{y + 3}[/tex]
please help, would be greatful :)
Answer:
180*-90*=90*
Step-by-step explanation:
I think it would be 90*
Answer:
5x+4x=180(Being parallel lines)
9x=180
x=180/9
x=20
A single 6-sided die is rolled. What is the probability of rolling a number
greater than 3 or an even number?
Answer:
what are your answer choices?
Step-by-step explanation:
Answer:
you have a 50/50 chance of rolling anything
Step-by-step explanation:
so it would be like in a fraction 1/2
NEED HELP PLEASE!! LOOK AT PICTURE-
Answer:
c. 5 units
Step-by-step explanation:
because if ABC and cda are congruent then that means they are the same and since AD and BC are across each other they thay would be the same.
2x-7=-3
AyudaaaaaaaaA
Step-by-step explanation:
2x-7=-3
2x=-3+7
2x=4
2x/2=4/2
x=2
but what is ayudaaaaa???
1. Jervane is planning on buying a coffee and several donuts for a road trip. She wants to spend no more than $20 in total. Coffee costs $3 and donuts are $2 each. Write and solve an inequality to determine the maximum number of donuts that Jervane can buy. Be sure to include units on your answer.( I'll give you brainless)
Answer: 8
Step-by-step explanation: Given:
Total money Jervane can spend = $20.
Cost of a coffee = $3.
Cost of a donut = $2.
To find: Maximum number of donuts Jervane can buy.
Solution:
Let the number of donuts she can buy be .
She wants to spend no more than $20 in total.
So,
As the number of donuts can only be a natural number.
Hence, the maximum number of donuts that Jervane can buy are 8.
solve for x
925 + x = 652
Answer:
x=-273
Step-by-step explanation:
first you move the constant to the right. it should look like this(x=652-925)
then you subtract and you should get -273
Answer this question in Spanish:
Imagine that you are on an uninhabited island and you could only bring three things with you. What did you bring?
Answer:
Si estuviera en una isla deshabitada y solo pudiera traer tres cosas, llevaría mi teléfono, latas de fruta y una manta.
Which expression is equivalent to -8.2-5?
A. −8.2+(−5)
B. 8.2 - 58.2−5
C. 5−(−8.2)
D. −8.2+5
Answer:
-8.2 + (-5)
Step-by-step explanation:
I got you queen
There are 40 boys in 6th grade. The number of girls in 6th grade is 30. Carly says that means the ratio of the number of boys in 6th grade to the number of girls in 6th grade is 4:7. Is this statement true or false?
Answer:
False
Hope this helps and mark 5 stars and brainlliest please.
Step-by-step explanation:
Answer: false
Step-by-step explanation:
It’s 4:3 and not 4:7 because the 7 was never mentioned in the problem
Need help fast plz if possible show work
Answer:
12.4949707813 MPH ( it might want you to round, which then of course would be 12.5 MPH.
Step-by-step explanation:
You need to take the number 20 (the diameter) and multiply it by pi. You then get 62.8318530718. You need to multiply that by 3.5, which then gets 219.911485751.
Which expression is equivalent to the given expression 2(3a+2b-7)
Step-by-step explanation:
2(3a+2b-7=6a+4b-146a+4b-146a=-4b+14a=(-4b+14)÷6a=(-4b+14)÷6 in 6a+4b-146({-4b+14}÷6)+4b-14
-4b+14+4b-14
0
Determine weather (4x + 3) is a factor of (4x^2 - 5x - 6)
A. (4x+3) (x-2) = 4x^2-5x-6
B. (4x+3) (x+1) = 4x^2-5x-6
C. (4x+3) (x-1) = 4x^2-5x-6
D. (4x+3) (x-2) = 4x^2-5x-6
Answer: A. (4x+3) (x-2) = 4x^2-5x-6
Step-by-step explanation:
PLEASE HELPPPP! DUE BY TOMORROW
Answer: C
Step-by-step explanation:
Length = x+6
Width = 2(x+6)
Area = x+6*2x+12
= 2[tex]x^{2}[/tex]+72
Evaluate if k = 3.
k2 + 5 = [?]
Answer:
k=3 (3)x2+5=11
Hope this helps you and good luck :)
Step-by-step explanation:
I need help to find each calculation.
Bill paid $35.99 in tax on a laptop that cost $449.99 about what percent sales tax did bill pay
Answer:
7%
Step-by-step explanation:
While shopping with your friend, Rory, you remember you have a coupon for 10% off any item. The thing you want is $100 and it is on sale for 15% off. Rory tells you that if you use your coupon, you will get 25% off the original price. Is Rory correct? How much will the item cost you after getting both discounts?
Answer:
it is b i did it on eg 2020
Step-by-step explanation:
What is the quotient of 28.32 ÷ 0.24?
Answer:
118
Step-by-step explanation:
At Zeke's Hats, there are 477 baseball caps and 477 other hats. What percentage of the hats are baseball caps?
A computer is on sale for 30% off with a sales tax of 10%.what is the final price of the computer if the computer was originally $1200?
What us 36 divided by 1/4 i'm stuck on this
Answer:
144
Step-by-step explanation:
hi I need help with my Khan academy homework whats the answer to X
Answer:
4 i belive x = 4
Step-by-step explanation:
9 divided by 3 = 3
12 divided bye 3 = 4
Answer:
x = 3
Step-by-step explanation:
Since the two legs of the outer triangle equal the same (12), it is safe to assume the two legs of the inner triangle will equal the same. Therefore, x is equal to 3.
If the simple interest on 6000 for 3 years is 1,620 then what is the insterest rate
Answer:
Step-by-step explanation:
Gather information like your principal loan amount, interest rate and total number of months or years that you'll be paying the loan.
Calculate your total interest by using this formula: Principal Loan Amount x Interest Rate x Time (aka Number of Years in Term) = Interest.
help please!!!!! i dont understand
Answer:
2.85
Step-by-step explanation:
Amount Saved = $2.85 (answer). In other words, a 5% discount for a item with original price of $57 is equal to $2.85 (Amount Saved).
Step-by-step explanation:
I dont like giving the answers to math questions, but the way in which your suppose to answer this is by finding the original price before the discount. To do this, turn the percent into a decimal (for five percent, 0.5) and divide the original price. This number should give you the discounted price! hope this helps you!
please solve for SQ.
Answer:
SQ=128
Step-by-step explanation:
Help please
Fernando has a rectangular flower garden (hat is 9 meters long and 4 meters wide.
He needs to buy enough fertilizer to cover the garden. How much fertilizer does he
need to buy?
2.25 square meters
13 square meters
36 square meters
40 square meters
Answer: 36
Step-by-step explanation:
you multiply 9 by 4 to get 36.