The answer is 35.19 hours.
3x^2+ 7x +2, can I get help with this one also ?
Answer:
(3x + 1)(2x + 1)
Step-by-step explanation:
Remark
This thing really does factor.
Both the first and last coefficients are prime, so if it factors easily 1 and 3 and 1 and 2 must be there somewhere.
(3x + 1)(x + 2) would be the logical guess. That turns out to be correct.
Solve the multi-step equation and place the steps in the correct order.
(Pls)
Answer:
1. 3x -6 + 4 = -20
2. 3x - 2 = -20
3. 3x = -18
4. × = -6
Answer:
The first one is 3x-2=-20. So the - 2 will cross the equal sign making it positive so it will be 3x = -20+2 given you 3x = - 18. You will divide it by 3 given u - 6. So all of them x= - 6
_-12=0
(Negative 12^)
Answer:
-12
Step-by-step explanation:
as the poem goes,
if you are bad at being good then you are bad
if you are good at being good then you are good
if you are bad at being bad then you are good
if you are good at being bad then you are good
take the third line into account
-12 - -12 is the same as -12 + 12 = 0
10. A line with a negative slope and a negative
y-intercept is graphed on a coordinate
plane. Which quadrant will the line not pass
through? Justify your response.
Answer:
The line will not pass through the first quadrant.
Step-by-step explanation:
Since the y-intercept is negative, and the slope is negative, the line will start in the second quadrant, pass through the third quadrant to intercept the y-axis, then pass through the fourth quadrant. It will never touch the first quadrant.
will give brainliest
Answer:
The answer is B
Step-by-step explanation:
A rectangular box has a width of x meters, length of x + 3 meters, and
a height of x 2 meters. Write an expression for its volume.
Answer:
x*(x+3)*(x^2)
Step-by-step explanation:
Width: x meters, length: x + 3 meters, height x^2 meters
It's an expression, so there's no simplifying needed.
x(x+3)(x^2)
But if I'm wrong and it's supposed to be simplified, Read the rest.
First, multiply x by x + 3
x(x + 3)
x^2 + 3x
Now, multiply x^2 + 3x by x^2
(x^2)(x^2 + 3x)
x^4 + 3x^3
what is the slope of the graph
Answer:
1 over 4
Step-by-step explanation:
if u do rise over run it will be 1 over 4 as well
Step-by-step explanation:
x=20 y =5
y=mx+b
b=0
5=20m
m=5/20=0.25
the slope is 0.25
Estimate 8 / 738.4 .
Answer:
0.01
Step-by-step explanation:
the answer is 0.010834 so I would round that to 0.01
Mixture Problem
1. How much water should be added to 8 mL of 6% saline solution to reduce the concentration to 4%?
Answer:
Amount of active ingredient is 0.04(8+x)= 0.32+0.4x
---------------
EQUATION:
active ingre. + active ingre. = active ingre
0.48 + 0 = 0.32 + 0.04x
0.16 = 0.04x
x=4ML (amount of water that must be added)
The amount of water that must be added is 4 ml to 8 mL of 6% saline solution to reduce the concentration to 4%.
What is the percentage?It's the ratio of two integers stated as a fraction of a hundred parts. It is a metric for comparing two sets of data, and it is expressed as a percentage using the percent symbol.
It is given that:
8 mL of 6% saline solution to reduce the concentration to 4%.
Let x be the amount that should be added to 8 mL of 6% saline solution to reduce the concentration to 4%.
The amount of active ingredients is
0.04(8 + x) = 0.32 + 0.4x
Active ingredients + active ingredients = active ingredients
0.48 + 0 = 0.32 + 0.04x
0.16 = 0.04x
x=4 ml; the amount of water that must be added
Thus, the amount of water that must be added is 4 ml to 8 mL of 6% saline solution to reduce the concentration to 4%.
Learn more about the percentage here:
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help me out with this pls (multiple choice)
Answer:
C
Step-by-step explanation:
In a 45-45-90 triangle, two of the sides are congruent because the angles are congruent. Choice C is the only answer in which the sides are congruent.
Mr. Seoul left $48,000 to his family when he passed. If he left 66 2/3% to his wife, how much did she receive?
Answer:
The answer is $32000.
Step-by-step explanation:
Joe borrowed $6,000 from the bank at a rate of 7% simple interest per year. How much interest did he pay in 3 years?
Answer:
$19,260
Step-by-step explanation:
6,000 * 7% = 420
6,000 + 420 = 6,420
6,420 * 3 = 19,260
easy
Answer:
$1,260
Step-by-step explanation:
So first of all you want to start by finding what P, r and t would be.
P = Principal amount ($$)
r = interest rate (%)
t = time (years)
Once I found all of those I put them into the equation (l = Prt) and solved (by putting it into a calculator obviously). That is how I came up with my answer. Check the screenshot provided to see what P, r and t would be and to see all my work! :)
Hope this helps! :)
Have a great day!
Last year, Maya opened an investment account with 8,800. At the end of the year, the amount in the account had decreased by 26.5%. How much is this decrease in dollars? How much money was in her account at the end of last year?
Answer:
Results are below.
Step-by-step explanation:
Giving the following information:
Initial investment= $8,800
Percentage decrease= 26.5%
To calculate the money Maya lost, we need to use the following formula:
Decrease on dollars= 8,800*0.265
Decrease in dollars= $2,332
At the end of the years she has:
Money left= 8,800 - 2,332
Money left= $6,468
Write a function rule for the statement.
The output is the cube of the input .
Y= _
Answer:
f(x) = x3
Step-by-step explanation: im not smart i just looked up your question and thats what i got
Calculator
What is the surface area of the square pyramid represented by
the net?
Enter your answer in the box.
5 ft
ft?
Answer:
40.32
Step-by-step explanation:
I did it on Goggle
can you help me please
Given:
The figure of a triangle.
To find:
The value of x.
Solution:
According to the triangle proportionality theorem, if a line segment divides the two sides of a triangle and parallel to the third side of the triangle, the it divides the two inclined sides proportionally.
Using triangle proportionality theorem, we get
[tex]\dfrac{2x}{80}=\dfrac{27}{60}[/tex]
[tex]\dfrac{x}{40}=\dfrac{9}{20}[/tex]
Multiply both sides by 40.
[tex]x=\dfrac{9}{20}\times 40[/tex]
[tex]x=9\times 2[/tex]
[tex]x=18[/tex]
Therefore, the value of x is 18.
Later, someone wants to use the data to find the amount of water at times before the sensor started. What should the sensor have read at the time -7 minutes?
it 4.56 that how i know because
Help I need to turn this in today:)
Total surface area
=2 ×(area of triangle) +( area of rectangle 1) + (area of rectangle 2) + (area of rectangle 3)
2×(1/2 × 16 ×12) + (10×12)+(16×10)+(20×10)
=672 cm²
Help with number 6? Rlly dont get it.
Answer:
12s^2 - s - 20
Step-by-step explanation:
It's simplest form is when it's fully expanded.
To expand: (3s-4)(4s+5)
(3s * 4s) + (3s * 5) + (-4 * 4s) + (-4 * 5)
= 12s^2 + 15s -16s -20
= 12s^2 - s - 20
It takes 1 ticket to ride the Ferris wheel at an amusement park. The amusement park earns $144 for each Ferris wheel ride if the cars are full. The Ferris wheel seats 48 people. Write an equation that can be used to determine the cost (c) for 1 ticket.
Answer:
It would cost 3 dollars.
Answer:
3 dollars
Step-by-step explanation:
Which of the following are exterior angles? Check all that apply.
In the given function y = 2x2-8x, when you factor out a, what is left inside the
parentheses?
Answer:
[tex]y = {x}^{2} - 4x[/tex]
what is [tex]\sqrt{x} -7=\sqrt{x -7[/tex]
Find the product of (x − 3)2.
x2 + 6x + 9
x2 − 9
x2 − 6x + 9
x2 + 9
Answer:
The answer is number 3
Step-by-step explanation:
[tex] {(x - 3)}^{2} = {x }^{2} - 6x + 9[/tex]
Answer:
answer- 3
Step-by-step explanation:
9(x−3)
2
=x
2
−6x+9
Mia is playing a video game she earns 30 points when she completes level 1. Each time she completes a level, she earns twice as many points as the previous level. How many points for Monica earn when she competes level 8? enter your answer in the box.
In quadrilateral PQRS below, sides PS and QR are parallel for what value of x ?
158
132
120
110
70
Answer:
ps and qr is parellel so the 70°and x is co interior angles.
so, our equation will be look like .
70°+x=180°
x=180°-70°
x=110°
The sides PS and QR are parallel for x = 110°
Option 4 is correct.
What are consecutive-interior angles?The pair of non-adjacent interior angles that are on the same side of the transversal are referred to as consecutive internal angles.The term "consecutive" describes events that take place side by side.
As per the given data:
PQRS is a quadrilateral with sides PS and QR parallel.
∠P = 70°
∠Q = x°
∠S = 112°
For sides PS and QR to be parallel:
∠Q + ∠P = 180° {Co-interior angles on the same side of the transversal}
x° + 70° = 180°
x = 110°
Hence, sides PS and QR are parallel for x = 110°
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THIS IS DUE REALLY SOON CAN SOMEONE HELP PLEASE???
find the # of tiles in stages 0-4, then write an expression that represents the pattern.
Answer:
# = number of tiles + 2
Step-by-step explanation:
So It would be 3,5,7 but your would add 2 to each number of tiles increased.
There were 0 tiles in step 0
Answer:
It can be observed that there is a pattern
Step 1
2 + 1 = 2 + 1²Step 2
2 + 4 = 2 + 2²Step 3
2 + 9 = 2 + 3²Step 4
2 + 4²Step n
2 + n²anyone know how to do this???
Answer:
My guess would be B
Step-by-step explanation:
I have no definite way to solve this, so i may be wrong. Take this with a grain of salt. If this assignment is graded, I suggest wait for someone elses
answer on Brainly.
At the beginning of the year, the number of books owned by a library was 10,000. Since then, it has grown by 1% each month.
Which expressions represent the number of books, in thousands, owned by the library 5 years later if it continues to grow at that rate?
Answer:
y = 10(1.01)^60
Step-by-step explanation:
The general equation of exponential growth is
y = ab^x
b has to do with the rate of growth.
b = 1 + r, so in this case, b = 1 + 1% = 1 + 0.01 = 1.01.
Now we have
y = a(1.01)^x
a is the initial value, so now we have
y = 10000(1.01)^x
where y is the number of books after x months
Since you need the number of books after 5 years, we must convert 5 years into months.
5 years * (12 months)/year = 60 months
The problem wants the expression in thousands of books, so we divide the initial value by 1000.
Answer: y = 10(1.01)^60
Expression representing the number of books after 5 years,
[tex]A(60)=10000(1.01)^{60}[/tex]
Exponential growth: Exponential growth function is given by,[tex]A(t)=A_0(1+r)^t[/tex]
Here, [tex]A(t)=[/tex] Final amount
[tex]A_0=[/tex] Initial amount
[tex]r=[/tex] Growth rate
[tex]t=[/tex] Duration or time
Given in the question,
Initial number of books = 10000 Growth rate = 1% Duration = 5 years ≈ 60 monthsSubstitute these values in the expression,
[tex]A(t)=A_0(1+r)^t[/tex]
[tex]A(60)=10000(1+0.01)^{60}[/tex]
Therefore, expression representing the number of books after 5 years will be → [tex]A(60)=10000(1.01)^{60}[/tex]
Learn more about the exponential growth here,
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1
1
Constance can decorate 2 ornaments in 4 hour.
Part A: How many ornaments, per hour, can Constance decorate? Explain your
answer and show your work.
Your answer
This is a required question
Answer:
1/2 ornament in an hour
Step-by-step explanation:
Given
[tex]Orna\ ments = 2[/tex]
[tex]Time = 4[/tex]
Required
Determine the ornaments per hour
This question implies that we calculate the unit rate.
[tex]Unit\ Rate = \frac{Orna\ ments}{Time}[/tex]
Substitute values for Time and number of ornaments
[tex]Unit\ Rate = \frac{2}{4}[/tex]
[tex]Unit\ Rate = \frac{1}{2}[/tex]
This implies that Constance can decorate 1/2 ornaments in an hour