Step/Answer:
The mistake begins at the line 3 where distrubting 2 in the expression. line 1 and line 2 both are correct. But line 3 is wrong.
[tex]2 {x}^{2} + 2x - 2 = 2 {x}^{2} - 18 \\ 2 {x}^{2} + 2x - 2 - 2 {x}^{2} + 18 = 0 \\ 2x - 2 + 18 = 0 \\ 2x + 16 = 0 \\ 2x = - 16 \\ x = - 8[/tex]
[tex]2( {x}^{2} - 9) = (2 \times {x}^{2} ) + (2 \times ( - 9)[/tex]
From line 3, you forgot to distribute 2 in -9.
Generate two equivalent fractions for each fraction. Use fraction tiles or number lines.
1
-
3
Sam went to see a movie that started at 5:05 PM.
The movie lasted 2 hours and 40 minutes.
What time did the movie end?
please help Maggie's brother is 3 years younger than twice her age. The sum of their ages is 30.
How old is Maggie
pakisaguatn pls help me asappppppppppp
nahihirapan po ako dito
plsssss
Answer:
Step-by-step explanation:
conversion factors:
m:cm= 1:100
dm:km= 1,000,000:1
m:mm= 1:1000
hg:dg= 1:1000
g:cg= 1:100
kg:g=1000
so we plug in:
5m=500 cm
5246dm=0.5246km
5.246m=5246mm
3.7hg=3700dg
0.37g=37cg
370kg:370000
so the word is SPEAKUP
Need help please help
Answer:
153.9 in²
Step-by-step explanation:
Using the formula: A = π r²
Where r = the radius and π is 3.14.
The radius is the diameter divided by 2.
14 divided by 2 is 7.
Plug in 7 into the formula:
A = π 7²
7² is 49.
49 times π is equal to 153.86.
Rounding this up to the nearest tenth, you'll get 153.9
Increase £2400 by 9%
Which is the solution of this system of equations?
y=5x-8
3y=x+18
Answers:
x=7, y=3 x=4, y=12
x=3, y=7 x=0, y=6
Answer:y=12
Step-by-step explanation:
Answer:
y=12
Step-by-step explanation:
i hope it was helpful
7x + 5 = 3(2x + 3) + x - 4
Answer:
Infinite Many Solutions
0 = 0
Step-by-step explanation:
7x + 5 = 3(2x + 3) + x - 4 (Given)
7x + 5 = 6x + 9 + x - 4 (Distributive Property Of Equality)
7x + 5 = 7x + 5 (Combine Like Terms)
0 = 0 (Subtraction Property Of Equality)
As you see it's the same thing in both sides and if you solve it gives 0 = 0 because it would cancel each other out and since 0 is equal to 0 it's infinite many solutions.
Plllllllllllllllllllllllzzzzzzzzzzzz help me out I’m confused 25 points
Answer:
-4+(-2)=-6
Step-by-step explanation:
So the arrow goes from -4 to -6 so the end answer is -6 and -4-2 is -6
Suppose there are 21 students in your class. If the teacher draws 2 names at random, what is the probability that you and your best friend will be chosen?
1/20
1/105
1/210
2/21
Answer:
2/21
Step-by-step explanation:
Probability = expected outcome/ possible outcome
What do the interquartile ranges (IQRs) tell you about how the teams race? Explain your thinking.
ILL MARK BRAINLIEST PLS HELPPOP
Answer:
The medians of all three teams can show the overall skill level of the teams. For example, the medians only vary between 47 and 48. This can show that most team members have around the same experience (since they have around the same median). The red team was the best in terms of time, but they don't vary much from their opposing teams.
Step-by-step explanation:
(Can also add more references to the chart and rank the teams in term of time )
Matt weighed 60 pounds when he was 8. He now weighs 80 pounds. Find the percent of increase in weight rounded to the nearest tenth. A. 20% B.25% C.30% D.33.3%
Answer:
D.33.3%
Step-by-step explanation:
A)60×.20=12
B)60×.25=15
C)60×.3=18
D)33.3% of 60 is 19.8. 60+19.8=79.8
if you round it up,it'll equal to 80
a solution for y = x + 2
There is an infinite number of solutions.
Y = x + 2
You could replace Y with 4 and X with Y-2 (which is 2 in this case. 4-2=2).
The result would look like this:
4 = 2 + 2
or
Y = x + 2
Y = 4
x = 2
A salesperson at a jeweraly store that earns 7% commission each week last week Jared sold $680 worth of jewelry how much did he make in commission how much did the jewelry store make from his sales
Given :
A salesperson at a jewelry store that earns 7% commission each week last week Jared sold $680 worth of jewelry.
To Find :
How much did he make in commission.
Solution :
Let, commission he make is C.
So, C is 7% of $680 .
[tex]C = \dfrac{680\times 7}{100}\\\\C = \$ 47.6[/tex]
Therefore, salesperson will make $47.6 commission.
which one doesn’t represent a function?
Plssssssssss help????????
Step-by-step explanation: Since the equation of this line is written in
slope-intercept or y = mx + b form, its slope or m is represented by the
coefficient of the x term which in this case is 8/5.
It's y-intercept or b is represented by
the constant term which in this is -5.
To graph the line, start with the y-intercept of -5.
So go down 3 units on the y-axis, plot a point at (0, -3).
From there, take your slope of 8/5, so rise 8 units
and run 5 units the right which should leave you at (5, 3).
Graph the line through those points.
Michael reads 12 pages of a book in 18 minutes, 8 pages in 12 minutes, and 20 pages in 30 minutes. I’d this a proportional relationship? What does it represent? Write an equation to represent this situation.
Answer:
Y= 1.5x
Step-by-step explanation:
What you would do is divide all of the minutes by the amount of pages to find how long for each rate for one page. (ex. 18/12, Michael reads 1 page in 1.5 minutes. 12/8, Michael reads 1 page in 1.5 minutes. 30/20, Michael reads one page in 1.5 minutes) Therefore, yes it is proportional, and the equation is y=1.5x (there is no y intercept)
I hope this will help
Please helppp! I’ll give Brainliest!!
PLEASE HELP!!!!!!!!!!!!!!!!
Answer:
Step 2
Step-by-step explanation:
Don't Question It
To make a shade of green called “Jasper Green," mix 4 quarts
of green paint with 2/3 cups of black paint.
How much green paint should be mixed with 4 cups of black
paint to make the same shade?
(Please help me before I get in trouble)
Answer: use a Calculator
Step-by-step explanation: really sorry if being mean and rude
find the values of z and y pls :)
. Christian made $138,000 as a Physician Assistant. Social Security tax is to a maximum income of $128,400. The Medicare tax is 1.45% and the Social Security tax rate is 6.2%. How much did Christian pay in FICA taxes?
Answer:
Total money made as a physician = $138,000
Medicare tax = 1.45% of $138,000
= 1.45/100 * $138,000 = $2001
security tax = 6.2 %of $138,000
= 6.2/100 * $138,000 = $8556
= $138,000 - ($2001 + $8556)
$138,000 - $10557
= $127,443 is paid by Christian in FICA taxes
hope it helps you
I will mark you brainliest if you answer this
Step-by-step explanation:
For the denominator to become 100, we multiply 2 to the numerator and denominator:
23/50 = (23 * 2)/(50 * 2) = 46/100 = 46%.
Answer:
[tex] \frac{23}{50} = \frac{23 \times 2}{50 \times 2} = \frac{46}{100} = 46\%[/tex]
46% is the right answer.
A property dealer charges a commission of 2% on the first 25000 and 1.5 % on the remainder. What commission does he charge for selling a plot of land of 130000
Answer:
$2075
Step-by-step explanation:
commission = 0.02 x $25,000 = $500
The remainder = $130,000 - $25,000 = $105,000
Commission on the remainder = 0.015 x $105,000 = $1,575
Total commission = $1,575 + $500 = $2075
what is the speed of a bowling ball that travels 100 meters in 5 seconds
16 + 13p -- 9p
how do you do this?
from the adjoining figure, find the value of x
Answer:
x = 2°
Step-by-step explanation:
x + 2x + 30 = 180°
3x + 30 = 180°
3x = 180°/30°
3x = 6°
x = 6°/3°
x = 2°
The scale of a model train is 1 1 inch to 13.5 13.5 feet. One of the cars of the model train is 5 5 inches long. What is the length, in feet, of the actual train car?
Answer:
74.25feet
Step-by-step explanation:
Given the scale of a model train expressed as;
1in = 13.5feet
We are to express length of 5.5in in feet
5.5in = x
Divide both expressions
1/5.5 = 13.5/x
Cross multiply
1×x = 5.5× 13.5
x = 74.25feet
Hence the actual length of the car in feet is 74.25feet
write an equation of the line that passes through the given point with the given slope. (-1,4) m=-3
Answer:
y - 4 = -3(x + 1)
Step-by-step explanation:
Let's use the point-slope formula y - k = m(x - h):
y - 4 = -3(x + 1)
1) (x2 + 5x - 36) + (x +9)