The expression (2x-3)(2x-3) can be written as (2x-3)² or 4x² - 12x + 9 after expanding by using the identity (a - b)² = a² -2ab + b²
What is an expression?It is defined as the combination of constants and variables with mathematical operators.
We have given an expression:
= (2x-3)(2x-3)
After multiplication:
= (2x-3)²
We can also expand the above expression by using the identity:
(a - b)² = a² -2ab + b²
= 4x² - 12x + 9
Thus, the expression (2x-3)(2x-3) can be written as (2x-3)² or 4x² - 12x + 9 after expanding by using the identity (a - b)² = a² -2ab + b²
Learn more about the expression here:
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Frank bought 17 boxes of cereal. This is 20% of the total boxes at the store. How many total boxes of cereal were at the store?
Answer:
85 boxes at the store becuase 17 is 20 percent of 85
I need help please help
A flower garden is in the shape of a right triangle. One leg of the triangle is 6 ft long and the hypotenuse is 10 ft long. If tulips can be planted every foot, how many tulips would the gardener put around the perimeter of the garden?
Answer:
Step-by-step explanation:
Using the Pythagorean Theorem we know
h^2=x^2+y^2
We can find the missing side
x^2=h^2-y^2, we know h=10 and y=6 so
x^2=100-36
x^2=64
x=8
So the perimeter is 10+6+8=24
So 24 tulips can be placed around the perimeter.
Sloan works 7 1/2 hours each day. How many hours h does Sloane work in d days?
Enter the correct answer in the box.
Answer:
h=7.5d is the answer.
Step-by-step explanation:
You just multiply 7.5 by the number of days worked.
You have $1200 to invest in an account and need to have $1900 in one year. What interest rate would you need to have in order to reach this goal if the amount is compounded quarterly? Round your answer to the nearest percent. please help
a. 48.7%
b. 10.5%
c. 8%
d. 44%
The interest rate that would reach this goal of having $1,900 with the investment of $1,200 compounded quarterly for one year is a) 48.7%.
How is the interest rate determined?The interest rate is the rate at which the present value of $1,200 needs to be compounded quarterly to yield a $1,900 future value in one year.
The interest rate can be computed using an online finance calculator as follows:
Data and Calculations:N (# of periods) = 4 quarters
FV = $1,900.05
PV (Present Value) = $1,200
PMT (Periodic Payment) = $0
Results:
I/Y (Interest per year) = 48.7%
Total Interest = $700.05
Thus, the interest rate that would the investor to achieve their goal is a) 48.7%.
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can i please have some help with this
Answer:
use math-way helps really well
Step-by-step explanation:
I'm saying this to save you time
Answer:
18. True
19.False (23 is not less than 23)
20. False (35 is not greater than 35)
21. False (7 is not less than 7)
22. True
23. True
Step-by-step explanation:
2x + 3y =-15
what is the equation in slope- intercept form?
Answer:
Y = -2/3x - 5
Step-by-step explanation:
Hope this helps. Pls give brainliest.
without graphing determine whether the system of linear equations has one solution y=6x+2 and y=3x+1
Answer Step-by-step explanation:
Simplifying
y = 6x + 2
Reorder the terms:
y = 2 + 6x
Solving
y = 2 + 6x
Solving for variable 'y'.
Move all terms containing y to the left, all other terms to the right.
Simplifying
y = 2 + 6x
///////////
Simplifying
Y = 3x + 1
Reorder the terms:
Y = 1 + 3x
Solving
Y = 1 + 3x
Solving for variable 'Y'.
Move all terms containing Y to the left, all other terms to the right.
Simplifying
Y = 1 + 3x
10.
Quadrilateral LKNM is a kite with angle K congruent to angle M. Diagonal LN
intersects MK at point P. If angle Nis 88 degrees and angle Mis 108, what is the
measurement of angle MLP.
9514 1404 393
Answer:
∠MLP = 28°
Step-by-step explanation:
The sum of angles in the quadrilateral is 360°. LN bisects angle L, so we have ...
2(∠MLP) +108° +88° +108° = 360°
2(∠MLP) = 56°
∠MLP = 28°
Jake was the winner of -400 yard race he finished the race is 2 minutes let T represent the finishing times in minutes of the other participants who ran the race
Answer:
T > 2
Step-by-step explanation:
ILL MARK YOU BRAINLIEST HELP
Answer:
Its C
Step-by-step explanation:
Answer:
the answer is c
Step-by-step explanation:
hope this helps!
please mark me as brainliest! thanks!
What is the answer 1 1/2x[] < 1 1/2
Answer:
would you mind uploading a pic of it because i dont understand
x+5/4=-3
the x+5 is the numerator and 4 the donomater
Before I answer:
Thanks for making it more clear
Answer:
x = -17
Step-by-step explanation:
-17 + 5 = -12
-12 ÷ 4 = -3
PLEASE ANSWER ASAP !!!
Answer:
(0,1)
Step-by-step explanation:
Answer:
0,1
Step-by-step explanation:
lol jdjsjskskkskskekekekeke
The area of a rectangular window is 7505 cm?.
If the length of the window is 95 cm, what is its width?
Answer:
79 cm
Step-by-step explanation:
area = length x width
7505 = 95 x width
7505/95 = width
Will mark brainliest help
Answer:
Positive 10
Step-by-step explanation:
Look where there is 1 value on the y axis
That's the y-intercept
Answer:
D) 10
Step-by-step explanation:
The y-intercept is where the line meets the y-axis. This area on the graph is at the 10 mark.
Hope it helps!
is this a positive linear, negative linear no association or non-linear.
Answer:
Positive linear.
Step-by-step explanation:
The points are gradually rising as x increases.
Jan bought a new sweater. It was priced at $32.00 and there was a 25% discount. She
gave the cashier $40.00. What was her change?
Answer:
$16
Step-by-step explanation:
5c-6=4-3c
2c-6=4
2c=10
c=5
describe the error made in the problem.
Answer:
5(c) - 6 = 4 - 3(c) is wrong
Step-by-step explanation:
The other problems are correct and equal. This one is wrong because when you do the equations you get 19 = -11 which is clearly not equal. You would need to change the equation to make it equal. So it would be:
5(c) - 6 = 4 - -3(c) so now it is 19 = 19.
So you would change 5(c) - 6 = 4 - 3(c) into 5(c) - 6 = 4 - -3(c)
I hope this helps :)
Answer:
The error is the problem 5c-6=4-3c.
Step-by-step explanation:
Because, it doesn't follow the rule c=5. All the problems need to abide by c=5. So the error is 5c-6=4-3c. If you do need to change it, you just need to change the 3c in the problem into -3c.
Basically the error is that the 3c in the problem is positive not negative.
Good luck! :D
Which equation represents a line which is perpendicular to the line 4x – 3y = 12?
Answer:
Step-by-step explanation:
Y= 4/3x - 4 HOPE THIS HELPED
A pack of 5 tee-shirts costs $60. What is the unit price for each shirt?
Answer: 12
Step-by-step explanation:
Answer:
12$
Step-by-step explanation:
if each shirt is 12 bucks and there's twelve then 12*5 is 60
2t−5=−10
Helpppppp
Plz
Answer:
t= -2.5
Step-by-step explanation:
2t−5=−10
add 5 to both sides
2t= -5
divide by 2
t= -2.5
Please help, this is for 8th grade math.
Answer:
(2,-2)
Step-by-step explanation:
The first step is to substitute y in the first equation with the right side of the second equation because they both equal to y.
-3x+4 = 4x-10
-3x-4x+4-4 = 4x-4x-10-4
-7x = -14
-7x/-7 = -14/-7
x = 2
Plugin 2 for x for either equation to solve for y, I'll be using the second equation, but either one is fine.
y = 4(2)-10
y = 8-10
y = -2
Plugin x = 2 and y = -2 into (x,y), and you get (2,-2)
Can you guys help me with this problem?
Answer:
.. .. .......
the answer is 100.....
Answer:
100°
……………………………………,,,,,,,,,,,,,,,,
What does it mean when it askes that?
Answer:
4
1
6
Step-by-step explanation:
so you have to multiple the x's by 1/3
so 4
1
6
Please help. Which of the following functions shows an initial amount of $15 and an increase of 35% each year?
A
y = 15(35)x
B
y = 15(1.35)x
C
y = 15(0.35)x
D
y = 35(1.15)x
Answer:
Step-by-step explanation:
y = 15(1.35)x
11. 23x2, 6х
What is the greatest common factor
Answer: x
Step-by-step explanation:
You cant factor 6 out of 23, but you can factor out an 'x' because they both share it
7. Triangle MLQ has sides of 4 cm, 4 cm, and 7 cm. Triangle M'L'Q' has
sides of 12 cm, 12 cm, and 21 cm.
Answer:
Triangle M'L'Q' was dilated by a scale factor of 3
Step-by-step explanation:
Well, 4 times 3 is 12 and 7 times 3 is 21, so that means the new triangle was dilated by a scale factor of 3.
4= 5x - 3 what is the value of x
Answer:
x=7/5
Step-by-step explanation:
4+3=5x
7/5=5x/5
7/5=x
Answer:
x=7/5
Step-by-step explanation:
5x - 3=4
5x=4+3
5x=7
x=7/5
What is the slope of a line parallel to a line with slope of 9
Answer:
slope of 9
Step-by-step explanation:
parallel means never touching, so it would have the same slope.
Hope this helps!