Answers
Related Questions
Choose the product of (3x2 + 7)(6x2 - 4x + 5).
Answers
Answer:
18x^4 - 12x^3 + 57x^2 - 28x +35
Step-by-step explanation:
Step-by-step explanation:
(3×2+7)(6×2-4x+5)= -52x +221
Please help!
And explain the answers too!
Answers
rate for A alone 6 baker
rate for A & B together 4
1/a+1/b=1/x
1/6+1/b=1/4
1/b=1/4-1/6
1/b=6/24-4/24
1/b=2/24
1/b=1/12
b=12
rate for wife alone 12 hours for the remaining 6 hours
check
1/6+1/12=1/4
12/72+6/72=1/4
18/72=1/4
ok
codewa
But we want to know how long it would have taken her for the whole job not just part of it
he works twice as fast as she does so the job that takes him 10 hours alone would take her 20 hours alone.
2) jessica and cynthia work in a pet shop.
it takes jessica 6 hours to groom all the pets but cynthia needs 8 hours to groom them.
if jessica starts to groom 1 hour before cynthia joins, how long will it take them to finish?
:
let t = time it takes them to finish (C's working time)
then
t+1 = J's working time
let 1 = completed job (all pets groomed)
:
A shared work equation, each does a fraction of the job, the two fractions add up to 1
%28%28t%2B1%29%29%2F6 + t%2F8 = 1
Multiply by the least common multiple of 6 and 8, 24. cancel the denominators
4(t+1) + 3t = 24
4t + 4 + 3t = 24
4t + 3t = 24 - 4
7t = 20
t = 20/7
t = 26%2F7 hrs, which is: 2 + 6%2F7*60 = 2 hrs 51.43 min to finish the job
3) math club takes 40 minutes
science takes 50 minutes.
rate * time = quantity
quantity = 1 set up of the tables.
rate for math club is 1/40 of all the tables in 1 minute.
rate for science club is 1/50 of all the tables in 1 minute.
math club works for 10 minutes.
rate * time = quantity
1/40 * 10 = 10/40 = 1/4 of the tables are already set up by the math club.
there are 3/4 of the tables that still need to be set up.
rate * time = quantity
the rates of the math club and the science club are additive.
(1/40 + 1/50) * time = 3/4 of the tables that still need to be set up.
common denominator is 200.
(5/200 + 4/200) * time = 3/4.
9/200 * time = 3/4
time = 3/4 * 200/9 = 600 / 36 = 16 and 2/3 minutes.
total time required is 10 + 16 + 2/3 minutes = 26 + 2/3 minutes.
how to check.
10 minutes is used to do 1/4 of the tables.
16 + 2/3 minutes is used to do the remaining 3/4 of the tables.
combined rate of math and science club is 9/200 of the tables in 1 minute.
math club rate of 1/40 * 10 = 10/40 = 1/4 of the tables.
combine rate of 9/200 * (16 + 2/3) = 9/200 * 50/3 = 450/600 = 9/12 = 3/4 of the tables.
1/4 + 3/4 = 1 = all of the tables.
Hi Mariceo, when you submit this form, the owner will be able to see your name and email address.
*
Required
1. Transform the following equation if necessary, and then solve to find the value of x that makes
the equation true: *
(10 Points)
5(3x + 9) – 2x = 151 - 2(x - 5)
10
45
Infinitely many solutions
No solution
Answers
Please help ASAP!!!!!!!!!!!!
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x-intercepts are where the line touches the horizontal line (x-axis)
PLEASE HELP FOR NUMBERS 5 AND 6!! Thank you!
Answers
Answer:
Step-by-step explanation:
5. y=40x
6. y=2.2x
Find the unknown sides and angles of this triangle using the Law of Cosines.
Round to the nearest hundredth.
Now, I know side C is 10.35, but I couldn't get the angles for A or B. I'm uncertain if this is a bug or what, but could someone help me out? I'd appreciate a well written explanation as well.
Answers
Answer:
side c-10.35 Angle a-50.88 Angle B-94.12
Step-by-step explanation:
I found the answers on a khan academy thing. I just took the quiz and got a 100%
Find x and y so the quadrilateral is a parallelogram.
Answers
Answer:
Summary:
The value of x = 7 The value of y = 4Step-by-step explanation:
We know that the diagonals of a parallelogram bisect each other.
As
The parallelogram PQRS is given, so
RT = TP
Given
RT = xTP = 5x-28plug in RT = x and TP = 5x-28 in the equation RT = TP
RT = TP
x = 5x-28
switch the sides
5x-28 = x
adding 28 in both sides
5x-28+28 = x+28
simplify
5x = x+28
subtract x from both sides
5x-x = x+28-x
4x = 28
divide boh sides by 4
4x ÷ 4 = 28 ÷ 4
simplify
x = 7
Therefore, we conclude that the value of x is: x = 7
Similarly,
QT = TS
Given
QT = 5yTS = 2y+12plug in QT = 5y and TS = 2y+12 in the equation QT = TS
QT = TS
5y = 2y+12
subtract 2y from both sides
5y - 2y = 2y+12-2y
simplify
3y = 12
divide both sides by 3
3y ÷ 3 = 12 ÷ 3
simplify
y = 4
Therefore, we conclude that the value of y is: y = 7
Summary:
The value of x = 7 The value of y = 4Graph y = -3/2x - 3.
Answers
Answer:
Step-by-step explanation:
One point can be the y-intercept. We can see that the y-intercept is (0,-3). -3 is the value of y when x = 0. The next point can be when x = 2. If we plug that in the equation, we get the point (2,-6).
Plotting these two points will graph the equation.
The graph is given below.
Some of the coordinates on the graph are (0, -3, (1, -4.5), and (2, -6).
What are coordinates in a graph?The coordinates in a graph indicate the location of a point with respect to the x-axis and y-axis.
The coordinates in a graph show the relationship between the information plotted on the given x-axis and y-axis.
We have,
y = (-3/2)x - 3
The coordinates from the given equation are:
When x = 0,
y = - 3
(0, -3)
When x = 1,
y = -3/2 - 3 = (-3 - 6)/2 = -9/2 = -4.5
(1, -4.5)
When x = 2,
y = -3 - 3 = -6
(2, -6)
Now,
The graph of the equation is given below.
Thus,
The graph is given below.
Learn more about coordinates here:
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Max invested $5700 into Brandon's new business where he will earn interest on his investment. After 7 years Max's investment is worth $13300. What is the Total Return on Max's Money? ROUND YOUR ANSWER TO 1 DECIMAL PLACE. The total return is %
Answers
Answer: 133.33%
Step-by-step explanation:
Max invested $5,700 into the new business.
After 7 years this came out to be $13,300.
The total return is calculated as:
= [(Ending investment amount - Beginning investment amount) / Beginning investment amount] * 100
= [(13,300 - 5,700) / 5,700] * 100
= 133.33%
Someone pls pls answer this ill mark u brainliest
Answers
Answer:
[tex]m\angle CBD=35^{\circ}[/tex]
Step-by-step explanation:
Since there are [tex]180^{\circ}[/tex] on each side of a line and [tex]\angle ABC[/tex] is marked as a right angle, [tex]m\angle CBE=180-90=90^{\circ}[/tex].
[tex]m\angle CBE=m\angle DBE+m\angle CBD[/tex], and [tex]m\angle DBE[/tex] is given as [tex]55^{\circ}[/tex].
Therefore, we can plug in our values and solve:
[tex]90=55+m\angle CBD,\\m\angle CBD=\fbox{35^{\circ}$}[/tex].
What is the equation of a line that is parallel to 2x +3y = 3 and passes through the point (3, -4) ?
Answers
Answer:
2x + 3y = -6
Step-by-step explanation:
The equation of the new line will be identical to that of the given line except that the constant term will differ.
Start with the given 2x + 3y = 3 and replace x with 3 and y with -4. We get:
2(3) + 3(-4) = C, and C = 6 - 12 = -6
The equation of the new line is therefore 2x + 3y = -6
please can someone help me really fast! i need youuu please it would be a massive help :))
Answers
3c+5a=96
6c+9a=183
-6c-10a=-192
-a=-9
The cost of an adult ticket is £9
2c+27=61
c=1/2 * 34 = 17
The cost of a child ticket it £17
Can someone help me out
Answers
Answer:
C.
Step-by-step explanation:
Parson City Middle School has 1,340 students. About 38% of the students are in the seventh grade. About how many seventh-graders attend Parson City Middle School?
Answers
Answer: About 509 seventh-graders attend Parson City Middle School.
Step-by-step explanation:
Total students in the school = 1,340
About 38% of the students are in the seventh grade.
Number of students in the seventh grade = 38% of (Total students in the school)
= 0.38 x (1340) [38%= 0.38]
= 509.2 ≈ 509
Hence, About 509 seventh-graders attend Parson City Middle School.
Part C: What is the value of z?
At a store closing, a universal discount rate
is applied to all items. The table shows the
price for three items.
O
A. $19.50
Total Price
O
B. $1.95
Discount
Original
Price
Price
(including
sales tax)
OC. $34.45
$22.50
$13.50
$14.31
O
D. $20.67
$16.20
$27.00
$32.50
у
Z
Answers
Answer:
Step-by-step explanation: I think it's D
please make x the subject for these questions
a(x-4)=b
c(7+x)=7
x/y-2 = v
v/9x = w/y
vx + w = 5
2w + vx = y
thanks
Answers
Answer:
x=b+4a/a
x=7-7c/c
x=y(v+2)
Answer:
That's the answer to everything
Can someone help me?
Answers
Answer:
Its the third one
Step-by-step explanation:
HELP ASAP‼️‼️ The price for 4 pounds of ribs is $28
what is the unit rate?
Answers
Answer:
$7 per pound
Step-by-step explanation:
28/4
Translate the figure 2 units left and 4 units down. What are the coordinates of the image?
The coordinates are A′(
,
), B′(
,
), C′(
,
), and D′(
,
Answers
HELLO I NEED HELP PLS
ps. this is adjusting entries in accounting
Directions: PREPARE ADJUSTING ENTRIES FOR THE FOLLOWING; TAKE NOTE THAT THE COMPANY IS USING THE CALENDAR YEAR.
1. The cost of electricity used for the month of December 2018 is P4,000. The electricity bill was received and paid in January 2019. How to record the
adjusting entries?
2. Employees earned total salaries of P100,000 in December 2018. However, the salaries were paid only in January 2019. How to record the
adjusting entries?
3. Papa Co. rents out its building to a tenant for a monthly rent of P50,000. As of December
31, 2018, the tenant has not yet paid the rent for the month of December. How to record adjusting entries?
PLSS I NEED ANSWERS AND EXPLANATION TOO
Answers
If you spin the spinner, what is the probability of the pointer landing in the y section
Answers
Answer:
1/8
Step-by-step explanation:
Line segment JK is divided by point L in the ratio of 3:2. Endpoint J is at (-16, 2) and point L is at (-15, -20). What are the coordinates of endpoint K?
Answers
9514 1404 393
Answer:
K(-14 1/3, -34 2/3)
Step-by-step explanation:
The division ratio says ...
(L -J)/(K -L) = 3/2
2(L -J) = 3(K -L)
5L -2J = 3K
K = (5L -2J)/3
K = (5(-15, -20) -2(-16, 2))/3 = (-75+32, -100-4)/3 = (-43/3, -104/3)
K = (-14 1/3, -34 2/3)
A pair of jeans is on sale for 20% off. The sale price is $55.00. What is the original amount of the pair of jeans?
Answers
Answer:
$66
Step-by-step explanation:
Answer: 68.75
Step-by-step explanation:
Help explain how you got it! Will mark brainliest!
Answers
2x = 26
x = 13
Answer:
i have made it in above pic hope it helps
Which is 42.364 written with words?
Answers
I need the answer to this can sb help
Answers
Answer:
yeah i gotchu
Step-by-step explanation:
A line includes the points (3, 7) and (2, 2). What is its equation in slope-intercept form?
Answers
Answer:
y=5x-8
Step-by-step explanation:
Write the equation of the line that passes through the points (-8,-1) and (5,-7). Put your answer in fully reduced point-slope form, unless it is a vertical or horizontal line
Answers
Answer:
The answer to the question provided is:
[tex]y + 1 = - \frac{6}{13} (x + 8)[/tex]
Step-by-step explanation:
❃Incase you forgot what the point-slope formula is ☟
[tex]y - y_1 = m(x - x_1)[/tex]
❃Incase you also forgot, what the slope formula is ☟
[tex]m = \frac{y_2 - y_1}{x_2 - x_1}[/tex]
➊ First: We are going to be solving for the slope.
[tex]m = \frac{ - 7 - ( - 1)}{5 - ( - 8)} = \frac{ - 6}{ \: 13} = - \frac{6}{13} [/tex]
➋Second: Plug in.
[tex]y + 1 = - \frac{6}{13} (x + 8)[/tex]
Somebody please help me! this is urgent!
Answers
Answer:
a. one solution
b. infinetly many solutions
c. one solution
d. no solution
Step-by-step explanation:
brainliest plz :)
The solution of equations are one solution, infinitely many solutions, one solution and no solution.
We are given that;
The four equations
Now,
To determine whether an equation has no solution, one solution, or infinitely many solutions, we can try to solve for the variable and see what happens.
Let's apply this method to each equation:
a. 8p + 1 = 4p + 2
4p + 1 = 2
Subtracting 1 from both sides, we get:
4p = 1
p = 1/4
This is a consistent result, so the equation has one solution: p = 1/4.
b. -6p + 7 = 7 - 6p
Adding 6p to both sides, we get:
7 = 7
This is an identity, so the equation has infinitely many solutions. Any value of p will satisfy the equation.
c. p + 9 = 2p - 3
Subtracting p from both sides, we get:
9 = p - 3
Adding 3 to both sides, we get:
12 = p
This is a consistent result, so the equation has one solution: p = 12.
d. 5p + 3 = 5p - 1
Subtracting 5p from both sides, we get:
3 = -1
This is a contradiction, so the equation has no solution.
Therefore, by the equation answer will be one solution, infinitely many solutions, one solution and no solution.
Learn more about equations;
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which term is related to electromagnetism applies only to the magnetic force
a. non-contact
b. poles
c. protons
d. attraction
HELP quick i am on a timed test!
Answers
A. non-contact
B. poles
C. protons
D. attraction
ANSWER:B.Poles is related to electromagnetism applies only to the magnetic forceHopeItHelps you