Answers
3(3x+1)(x-1) and (3x +1)(3x-3)
Answer:
#1
Well lets solve the polynomial first.
(4p +3) ^2
That is basically
(4p + 3) (4p + 3)
And we’re trying to find the error in the “equal” solution.
16p^2 + 8p + 9.
So let’s solve the polynomial first
Following F.O.I.L
F- First
O- Outter
I- Inner
L- Last
So doing the equation in order.
4p * 4p = 16p^2
4p * 3 = 12p
3 * 4p = 12p
3* 3 = 9
Added it all up.
16p^2 + 12p + 12p + 9
Simplify.
16p^2 +24p +9
We can see that in this case the 8p is wrong.
So we replace 8p with 24p
In this case the last option.
Factoring #2
So we’re factoring
9x^2 -6x - 3
So how are we gonna do this.
So I’m just gonna go over the simple method.
The standard form of a quadratic is
Ax^2 + bx + c = 0
We don’t have to worry about the equal 0 part here for now.
ax^2 + bx + c
A being the number next to x^2
B is the number being next to x
C is the number that is next to nothing, jsut a plain whole number (sometimes whole number)
So let’s plug it in.
(It’s already plugged in so we can solve)
9x^2 - 6x - 3
Multiply a and c in ths case being, 9 and -3.
You’d get -27
We need two numbers that multiply to -27 and add up to -6
From here it’s guessing and checking.
Here’s my process.
trial 1
Since the sum is negative, it has to be negative + negative or positive + negative greater then the positive. Or vice versa but positive is less then negative.
But the product has to be -27,negative * negtaive is positive, so it has to be positive * negative and positive + negative.
I look at -27 and think of two numbers that would give the lowest.
-9 * 3
-9 * 3 = -27
-9 + 3 = -6
It looks like I got it already on the first try.
The numbers are -9 and 3
end of trial 1
So now I know that the numbers are -9 and 3.
Using that information I just plug it into the quadratic but replace it with b.
9x^2 -9x + 3x - 3
Now you can simplify this
In the end you’d get
3 (3x+1)(x-1)
You’d have the third option open to you
Figure out the second one using these strategies
Related Questions
Answer now I will give brainless
Pls answer both of the question
Answers
Answer:
A and D
Step-by-step explanation:
If r = 6 units and h = 9 units, what is the volume of the cylinder shown above? Use 3.14 for .
A.
1,017.36 cubic units
B.
1,526.04 cubic units
C.
452.16 cubic units
D.
339.12 cubic units
Answers
Answer:
A) 1017.36 in³
Step-by-step explanation:
volume of a cylinder = [tex]\pi r^2h[/tex]
(where r is the radius and h is the height)
Given:
r = 6h = 9[tex]\pi =3.14[/tex]Substituting given values in the equation:
[tex]\implies V = 3.14 \cdot 6^2 \cdot 9[/tex]
⇒ V = 1017.36 in³
Need help!
Find the exact volume of the cylinder.
Last one, for today!
Thanks! :)
Answers
[tex] \mathcal \pink{GIVEN:}[/tex]
Radius = 3 mHeight = 7 m[tex] \mathcal \purple{TO \: FIND:}[/tex]
Volume = ?[tex] \mathcal \blue{CALCULATION:}[/tex]
[tex] \qquad{ \sf \: volume = \pi{r}^{2}h }[/tex]
Where,
r is radiush is height[tex] \qquad{ \tt\nrightarrow \: \frac{22}{7} \times {3}^{2} \times 7}[/tex]
[tex] \qquad{ \tt\nrightarrow \: \frac{22}{ \cancel7} \times {3}^{2} \times \cancel7}[/tex]
[tex] \qquad{ \tt\nrightarrow \: 22 \times {3}^{2} }[/tex]
[tex] \qquad{ \tt\nrightarrow \: 22 \times 9 }[/tex]
[tex] \qquad{ \boxed{ \tt\Rrightarrow \: 198\: {m}^{3} }}[/tex]
➪ Henceforth, The volume of the cylinder is 198 m³...
Find the average value of the function h(x, y) = x3y2 on the region bounded by f(x) = 2x 1, g(x) = −x2 − 2, x = 0, and x = 1
Answers
The average value of the function [tex]h(x,y) = x^{3}\cdot y^{2}[/tex] is approximately 3.1496.
How to find the average of a two-variable function
The average is defined by the following double integral equation:
[tex]\bar h = \frac{\int\limits^1_0 {\int\limits^{f(x)}_{g(x)} {x^{3}\cdot y^{2}} \, dy } \, dx }{(1-0)\cdot [y(1)-y(0)]}[/tex] (1)
If we know that [tex]g(x) = -x^{2}-2[/tex] and [tex]f(x) = 2\cdot x - 1[/tex], then the double average is:
[tex]h = \frac{\frac{1}{3} \int\limits^{1}_{0} {x^{3}\cdot [f(x)-g(x)]^{3}} \, dx }{(1-0)\cdot [f(1)-f(0)-g(1)+g(0)]}[/tex]
[tex]h = \frac{\frac{1}{3}\int\limits^{1}_{0} {x^{3}\cdot [2\cdot x-1+x^{2}+2]^{3}} \, dx }{1-1+3-2}[/tex]
[tex]h = \frac{1}{3}\int\limits^{1}_{0} {(2\cdot x^{2}-x+x^{3}+2\cdot x)^{3}} \, dx }[/tex]
The average value of the function [tex]h(x,y) = x^{3}\cdot y^{2}[/tex] is approximately 3.1496. [tex]\blacksquare[/tex]
Remarks
The statement presents mistakes and is poorly formatted:
Find the average value of the function [tex]h(x,y) = x^{3}\cdot y^{2}[/tex] on the region bounded by [tex]f(x) = 2\cdot x - 1[/tex], [tex]g(x) = -x^{2}-2[/tex], [tex]x = 0[/tex] and [tex]x = 1[/tex].
To learn more on averages, we kindly invite to check this verified question: https://brainly.com/question/2426692
pls help asapppppppp
Answers
Answer:
Step-by-step explanation:
15 points
Given that the area of a circle is 175πcm², what is
the circumference? Round the nearest hundredth
if necessary.
Answers
Answer:
area 175 rounded 46.89
Step-by-step explanation:
i did it
19,476 to the nearest ten thousand.
Answers
Answer:
19,000
Step-by-step explanation:
you don't round up because the next number is lower than 5
Answer: 20,000
What is the slope of the line that passes through the points (5,8) and (11,5)? Write your answer in simplest form.
Answers
Answer:
-1/2.
Step-by-step explanation:
slope of a line is (y2-y1)/(x2-x1). Plug in points (5-8)/(11-5). That gives -3/6. Reduce the fraction by 2, so -1/2 is the answer.
It is -12. 5°c outside when the temp starts increasing by 2. 5°c each hour. How long will it take for the temp to reach-5°c
Answers
Answer:
3 hours
Step-by-step explanation:
12.5/2.5 = 5
then convert it to negative
7. Amauri went to the winter festival. It cost her
$3 to get into the festival plus an additional
$1.25 for each booth she visited. If she spent a
total of $11.75, how many booths did she visit?
Answers
Answer:
she visited 7 booths
Step-by-step explanation:
the total was 11.75 and entry fee was 3 dollars so that leaves $8.75 to spend on booths, and since it's $1.25 per booth all you need to do is divide $8.75 by $1.25 which give you 7
What is the solution p - 6 > 8
Answers
Answer:
not sure what the EXACT ANSWER IS but it's any number that's GREATER than 8, not including 8, but any number above it.
Step-by-step explanation:
Hope this somewhat helps, have a great day!!
Answer:
are you joking dude
Step-by-step explanation:
p>14
omg my 2 year old could-
Three friends share some mangoes as follows;Fred receives 2 out of 5 the total, and the reminder is shared between yaw and kwame in the ratio 3:5. How many mangoes did kwame receive if yaw's share was 84 mangoes.
Answers
Given that the ratio between Yaw and Kwame is 3:5
So, [tex]\rm{\blue{Yaw:Kwame} = 3:5 = 84:n}[/tex]
[tex]\rm{\red{n = 84 \times 5 \div 3} = 140 \: mangoes }[/tex]
Hence, the answer is [tex]\rm{\blue{140} \: mangoes}[/tex]
One year, the population of a city was 225,000. Several years later it was 236,250. Find the percent increase.
Answers
Based on the information given the percentage increase is 5%.
Percentage increaseUsing this formula
Percentage increase=Population several years later-Population for year/Population for one year×100%
Let plug in the formula
Percentage increase=236,360-225,000/225,000×100
Percentage increase=5%
Inconclusion the percentage increase is 5%.
Learn more about percentage increase here:https://brainly.com/question/11360390
On a recent survey, 60% of those surveyed indicated that they preferred hamburgers over pizza.
If 540 people preferred pizza, how many people preferred hamburgers?
Answers
Answer:
810
Step-by-step explanation:
0.4x=0.6
x=1.5
540*1.5=810
The answer is 810.
Sheree drew this model of a tent. It is in the shape of a triangular prism with bases that are isoceles triangles. How many square inches of fabric are needed to make this model tent? A triangular prism. The triangular bases have a base of 8 inches, height of 3 inches, and side lengths of 5 inches. The height of the prism is 12 inches. 144 square inches 240 square inches 264 square inches 274 square inches.
Answers
Answer:
144
Step-by-step explanation:
I did it before
Answer:
a
Step-by-step explanation:
Find the area for number 5.
Answers
Answer:
The area of the pentagon is 249 square inches.
Step-by-step explanation:
Given, s = 12in; and a = 8.3, The formula to find the area of a pentagon with apothem is, Area of pentagon = 1/2 × perimeter × apothem. So, let us find the perimeter of the pentagon. Perimeter of the pentagon = 5 × side length.
perimeter = 5 x 12
= 60in.
Area = 1/2 × 60×8.3
= 249in².
Write an equation of the line that passes through point (-8, – 5) and has the slope m= - 1/4
y=
Answers
Answer:
y= -1/4x + 3
Step-by-step explanation:
y-y1 = m(x-x1)
(-8 {x1}, -5 {y1}, -1/4 [m] )
We'll then replace the letters with the available figures.
y-[-5] = -1/4 (x-[-8])
We are made to know that minus + minus= plus
Minus + plus= Minus
Minus x minus = plus
minus x plus = minus
Therefore, the mathematical setting of this question becomes,
y+5 = -1/4 (x+8)
Multiply everything in the bracket with the outside value
-1/4 x X = -1/4x
-1/4 x 8 = -2
The mathematical setting then becomes,
y+5 = -1/4x + -2 (Note: plus + minus = minus)
so, it becomes
y+5 = -1/4x - 2
The equation is supposed to look like this, y= mx + b
Therefore we add +5 to both sides to cancel out
y+5 = -1/4x - 2
+5 +5
+5 cancels out +5 which makes the setting,
y= -1/4x - 2 +5 (-2+5 goes around to become 5-2= 3)
The expression now looks like this
y= -1/4x +3 which is the final answer!
[tex]y= -1/4x + 3[/tex]
Lily began a plan for this proof.
Since ∠1 and ∠2 are supplementary and ∠1 and ∠3 are supplementary, then m∠1+m∠2=180° and m∠1+m∠3=180°. If she can get m∠2 and m∠3 to both equal the same expression, she can use the transitive property of equality to set them equal to each other.
How can Lily get m∠2 and m∠3 to both equal the same expression?
Answers
Answer:
Step-by-step explanation:
Answer:
she can subtract m < 1 from both sides of m < 1 + m < 2 = 180* and m < 1 + m < 3 = 180*
Step-by-step explanation:
IMAGINE MATH!1
Kelly bought 1 gallon of milk. If she has 1 cup of milk every day, how many days will 1 gallon of milk last?
Answers
Answer: 16 days
Step-by-step explanation:
1 gal = 16 cups
if she's taking 1 cup a day it will last 16 days
Please help!!
If one pound is equal to 453.592 grams, how many grams are there in one ounce?
1. 100
2. 10
3. 28.3495
4. 283.495
Answers
The midpoint of a line can be found using either a compass and straightedge construction or a straightedge and tracing paper construction. True or false?
Answers
Answer:
The midpoint of a line can be found using either a compass and straightedge construction or a straightedge and tracing paper construction.True or false?TrueStep-by-step explanation:
#BrainliestBunchAnswer:
True is the answer.Step-by-step explanation:
#Carryonlearning(-4)-(-2)-{(-5)-[(-7)+(-3)-(-8)]}
Answers
Answer:
Step-by-step explanation:
the answer is 1
A) Linear
B) Quadratic
C) Exponential
D) Functional
Answers
You will be able to tell when graphing, but the Y-value is decreasing by -2 with each increment of X. So when graphed, it will look like a downward sloping straight line.
Central Angles
Inscribed Angles
Vertex is in the center
of the circle
Vertex is on the circle
2 x Angle = Arc
Angle = 1/2 Arc
Angle = Arc
Answers
Answer:
here is the answer
Step-by-step explanation:
Central Angle: An angle whose vertex is the center of a circle. The measure of a central angle is equal to the measure of its intercepted arc. ... Inscribed Angle: An angle whose vertex is a point on a circle and whose sides contain chords.
If you hold a rubber ball in your hand and let it go, it begins to move. Describe the motion of the ball and identify the force that causes it to move.
Answers
HELP ASAP WITH THIS ILL MARK BRAINLIEST FOR THE RIGHT ANSWER
Answers
Answer:
y−3=−13(x−1), which we can rearrange to get y=−13x+103.
Hope it helps!!!!!!!!brainliest pls!!!!!!!!!!Help me on this pleaseee
Answers
Answer:
Bolded below are the answers
Step-by-step explanation:
4568 ÷ 8
(4000 ÷ 8) + (560 ÷ 8) + (8 ÷ 8)
500 + 70 + 1
571
Hope this helps!
Answer:
4568 ÷ 8
= (4,000 ÷ 8) + (560 ÷ 8) + (8÷8)
= 500 + 70 + 1
= 571
Step-by-step explanation:
Brian is 6 feet tall and casts a 4 foot shadow. At the same time, a nearby flag pole casts a 20 foot shadow.
How tall is the flag pole?
Answers
since brians shadow is 2/3rds his height
4 / 6 is 2 /3
20 / 30 is 2 / 3 too so flag pole must be 30 feet tall
what percent of 50 is 8
Answers
Answer:
8/50 × 100 = 16%
Answer:
Step-by-step explanation:
just solve this cs i need help thx
Answers
Answer:
I believe its C if im wrong delete my question so other people have a chance
Step-by-step explanation: