Answers
Answer:
(x+c)(x-d)
Step-by-step explanation:
if x²-ax-b=(x-c)(x+d)
from vieta theorem
c + d = -(-a)=a
cd = b
if x²+ax-b
from vieta theorem
c + d = -(a)=-a
cd = b
so the same c d but in opposite sign (x+c)(x-d)
Related Questions
NO LINKS PLEASE help
Answers
Answer:
Midpoint for A is (1,5) and for B it is (2.5,4.5)
Step-by-step explanation:
To get the midpoint you add the x coordinates and divide by 2 and then the y coordinates and divide by 2.
X = (3 + -1)/2 y = (8+ 2)/2
=2/2 = 1 10/2=5
please help me answer this i really need help !!
Answers
Answer:
A= 314.16m^{2}
Step-by-step explanation:
if its a half a circle then we use the formula to find area of a circle and get half of it.
[tex]A=\pi r^{2}[/tex]
[tex]A=\pi 10^{2}[/tex]
[tex]A= 314.16m^{2}[/tex]
A regular hexagonal prism has an edge length 11 cm, and height 8 cm. Identify the volume of the prism to the nearest tenth.
Answers
Answer:
it may be V ≈ 4191.6 cm3 so sorry if i'm wrong!!!
Step-by-step explanation:
Answer: V ≈ 2514.9 cm3
Step-by-step explanation:
To find the volume of the prism, first calculate the area of the base.
To find the apothem of the hexagonal base, recognize that the sum of the measures of the interior angles in a hexagon is (6−2)⋅180°=720°. So, the interior angle has measure 720°6/=120°.
The base angle of the triangles with the hexagon's sides as their base is one-half of 120°, or 60°. The apothem bisects these triangles to form two right triangles with the short leg length of 5.5 cm.
By the definition of tangent, tan 60°=?/5.5.
Solve for ?.
?=5.5 ⋅ tan 60°
Therefore, the apothem length equals 5.5 ⋅ tan 60°.
The area of a hexagonal base.
B=6⋅(12⋅11⋅?)
Substitute 5.5⋅tan60° for ?.
B=6⋅(12⋅11⋅5.5 ⋅ tan60°)
Simplify.
B=181.5 ⋅ tan60° cm2
The volume of a prism.
V=Bh
Substitute 181.5 ⋅ tan60° for B and 8 for h.
V=(181.5 ⋅ tan60°)⋅8
Multiply 181.5 by 8.
V=1452 ⋅ tan60°
Use a calculator to approximate.
V≈2514.9 cm3
Therefore, the volume of the hexagonal prism is approximately 2514.9 cm3.
$200 at 9% compounded semiannually for 2 years
Answers
Answer:
Your answer is on the picture
Step-by-step explanation:
YALL HAVE BEEN GETTING THESE WRONG LATELY SO PLZ HELP
Answers
Answer:
m=-4/3
Step-by-step explanation:
The equation for slope is y2-y1/x2-x1
m=(y2-y1)/(x2-x1)
m=(12--4)/(1-13)
m=16/-12
m=-4/3
Convert this into Standard form 2x^2+5x-18x-2
Answers
Answer: 2x2−13x-2
the x next to 13 is not multiply
i don’t understand this question
Answers
name the following polynomial expression.
[tex] {4x}^{2} + x - 3 [/tex]
Answers
Answer:
Step-by-step explanation:
It has 3 terms so it is a trinomial.
It can also be called a quadratic.
Answer:
a trinomial.
If that is what ur asking for
Step-by-step explanation:
The area is 176 square units I need help
Answers
Answer:
Your answer would be 11.
Step-by-step explanation:
This is because area = length x width.
16 x 11 = 176 :) Hopefully this helps!
Answer:
x = 11 units.
Step-by-step explanation:
Area = x * 16 = 176
x = 176/16
= 11.
A triangular prism has a base perimeter of 32 cm and a height of 15 cm what is the lateral surface area of the prism
A. 240 cm2
B. 432 cm2
C. 160 cm2
D. 480 cm2
Answers
Answer: c
Step-by-step explanation
Write an equation of the line that passes through the given point with the given slope
Answers
Answer:
a: -3x+1
Step-by-step explanation:
-3x+1
hope it helps <3
Ate of exchange between dollar to euro was $ 0.8 to 1 euro calculate the number of euros received in exchange for $ 300
Answers
Answer:
$240
Step-by-step explanation:
Since a CAD is 4/5 of a Euro (just for this question) all we needed to do was to multiply 0.8 by 300.
What is a simpler form of (x-6)(4x+3)?
Answers
Have a nice day or night whatever
Answer:
4x^2-21x-18
Step-by-step explanation:
Nick and Jay emptied their piggy banks and found they had $11, all in nickels and dimes. How many of each did they have if they had 156 coins?
Please show work, thank you!
Answers
Answer:
92 nickels and 64 dimes
Step-by-step explanation:
5n+10d=1100
n+d=156
n+2d=220
d=64
n=92
2. Please complete both Parts A, B, & C below.
a. These triangles are proportional. Identify which sides match up between the two triangles. Please note sides are named from point to point so for instance the length 40 on triangle ABC is referred to as side AB. Make sure to identify all three pairs.
b. Set up fractions with your side pairs to show proportionality. Do they all simplify down to the same fraction? If not please go back to Part A and remember that shapes can be rotated or reflected. Make sure to show your work demonstrating that the fractions are proportional.
c. Are the triangles similar? If so explain why. If not, explain why not. Your work from Part A & B may help with this.
i need is asap
Answers
Answer:
a)ab and yz, ac and xy, bc and xz
b)yz = xy = xz 30 = 37.5 = 45 3 = 3 = 3
ab ac bc 40 50 60 4 4 4
c)they are similar because all sides break down to ¾
Step-by-step explanation: i did this on my test
a) The pairs of proportional triangle is
AB and YZ,
AC and XY,
BC and XZ
b) The fraction of side is
YZ / AB = XY / AC= XZ / BC = 3/4.
c) Yes the similarity of Triangle.
What is Similarity?Similar triangles are triangles that have the same shape but differ in size. Similar items include all equilateral triangles and squares with any side length. In other words, if two triangles are identical, their corresponding angles and sides are congruent and in equal proportion. The " sign here denotes the resemblance of triangles.
In Triangle ABC and YZX
a) So, the pairs of proportional triangle is
AB and YZ,
AC and XY,
BC and XZ
b) The fractions with your side pairs is
YZ / AB = 30 / 40 = 3/4
XY / AC = 37.5 / 50 = 3/4
XZ / BC = 45/ 60 = 3/4.
c) As, the ratio of sides are proportion.
So, by SSS similarity criteria the triangles are similar.
Learn more about Similarity here:
https://brainly.com/question/26451866
#SPJ3
Problem If 5 wholes are divided into pieces that are each 1/4 of a whole, how many pieces are there?
Answers
PLEASE ANSWER QUICKLY, I WILL LOVE YOU FOREVER. AND GIVE YOU THE BRAINLY THINGY
The scatter plot shows the average movie ticket prices since 1995.
write an equation in slope intercept form for the line that is drawn
use your equation to make a conjecture about the average cost of a movie ticket in 2020
Answers
Answer:
The average movie ticket prices in 2020 was $ 10.25.
Step-by-step explanation:
If (0 , 4) and ( 8, 6) are two points on a line, the slope of the line is:
m= y2 - y1/ x2 - x1
m= (6 - 4) / (8 - 0)
m= 1 / 4
The y-intercept is $ 4, meaning it is the average movie ticket price in 1995.
Therefore,
Y = mx + b
Y = 1/4 x + b
It is m= 1/4, interpreting the slope we have that for every additional 4 years the average movie ticket price will increase by $ 1.
The year 2020 is 25 years after 1995, then
Y= 1/4 (25) + 4
Y = $ 10.25
The average movie ticket price was $10.25 in 2020.
15 POINTS!! NO LINKS OR REPORT!
What is the slope and y-intercept of the line?
Answers
Answer:
Slope = 3
Y-intercept = -2
Step-by-step explanation:
Points on the line: (0, -2) and (1,1)
Slope:
m=(y2-y1)/(x2-x1)
m=(1+2)/(1-0)
m= 3/1
m = 3
Slope-intercept:
y - y1 = m(x - x1)
y + 2 = 3(x - 0)
y + 2 = 3x
y = 3x - 2
y = mx + b, where
m = slope
b = y-intercept
Find the total surface area of the
following square pyramid:
6 cm
8 cm
SA = [?] cm2
Answers
Answer:
Step-by-step explanation:
Find the total surface area of the
following square pyramid:
6 cm
8 cm
SA = [?] cm2
Answer:
Step-by-step explanation:
Answer:
160
Olga tried to solve an equation step by step.
\begin{aligned} \dfrac14\left(\dfrac13k+9\right)&=6 \\\\ \dfrac13k+9&=24&\green{\text{Step } 1} \\\\ \dfrac13k&=15&\blue{\text{Step } 2} \\\\ k&=5&\purple{\text{Step } 3} \end{aligned}
4
1
(
3
1
k+9)
3
1
k+9
3
1
k
k
=6
=24
=15
=5
Step 1
Step 2
Step 3
Find Olga's mistake.
Answers
Well formatted version of question :
Olga tried to solve an equation step by step
1/4(1/3k+9)=6
step 1- 1/3k+9=24
step 2- 1/3k=15
step 3- k=5
find olgas mistake
step 1
step 2
step 3
olga did not make a mistake
Answer:
Step 3
Step-by-step explanation:
Given the equation :
1/4(1/3k+9)=6
Step 1 : Olga multiplied both sides by 4
1/4(1/3k + 9) * 4 = 6* 4
1/3k + 9 = 24
Step 2 : Olga subtracted 9 from sides
1/3k + 9 - 9 = 24 - 9
1/3k = 15
Step 3 : Both sides should be multiplied by 3
1/3k * 3 = 15 * 3
k = 45
This is the step Olga made a mistake. Olga attempted to divide 15/3 = 5 instead of Multiplying 15 * 3 to obtain 45
Work out the difference between 5/9and4/9
Answers
Answer:
1/9
Step-by-step explanation:
Subtract them
5/9-4/9=1/9 Answer
Help me help me please I have to finish this by Tommrow
Answers
A.
i did this test already trust me
Answer:
I am not sure check it
but the answer is A
Which of the following statements represents a correct relationship?
a.) 345 > 354
b.) 400 < 40
c.) 4,008 < 4,080
d.) 23,090 = 23,009
Answers
Answer:
I think C
so it's kind of a process of elimination you have to see the order of the numbers and what order each number is in so for A you can see that it's 345 is greater than 354 which is inspect cuz 354 is greater than 345 for B that's an obvious answer is is 400 is less than 40 which is obviously wrong because 400 is greater has two zeros and 40 only has one 0 for C it has 4008 is less than 4080which is actually correct if you look at the way that the numbers are written you could see that 80 is greater than 8 D it's obviously not correct because it says 20090 is equal to 23009 which is incorrect because 90 is greater than 9
What is the average of 87 and 62
Answers
Answer:
74.5
Step-by-step explanation:
Answer: The answer is 74.5
Step-by-step explanation:
Hope this helped! :)
If correct I’ll give brainlist
Answers
Hi there!
[tex]\large\boxed{-18a^{3}c^{3}}[/tex]
To solve, keep in mind the following property:
xᵃ · xᵇ = xᵃ⁺ᵇ
We are given:
-3a⁷ (6)c⁷a⁻⁴c⁻⁴
Combine like exponent bases using the property above:
-3(6)a⁷⁻⁴c⁷⁻⁴
Simplify:
-18a³c³
What is the slope of the line that passes through the points (-6,8) and (-16,33)
Answers
Answer:
-5/2 or -2.5
Step-by-step explanation:
Find the slope using rise over run (y2 - y1) / (x2 - x1)
(y2 - y1) / (x2 - x1)
(33 - 8) / (-16 + 6)
25 / -10
= -5/2
So, the slope is -5/2 or -2.5
Answer:
Solution :-We know that
Slope
[tex] \bf \: \dfrac{y_2 - y_1}{x_2 - x_1} [/tex]
Where
y2 = 33
y1 = 8
x2 = -16
x1 = -6
33 - 8/-16 - 8
25/-24
Find the length of each side of its base of a square pyramid of volume 98 cm3 and height 6 cm.
a)
5 cm
Answers
Answer:
7cm
Step-by-step explanation:
Volume =1/3Base area × height
98 = 1/3 BA *6
98=2BA
Base area = 98÷2
Base area =49
Length=√49
Length=7cm
yeah i have no clue how to do this and there's two of them soo help is very much appreciated lol
Answers
Answer:
2^x - 4 is the answer here
Expand 5(2x - 1) please helpp
Answers
Answer:
10x - 5 is the answer !!!!
Answer:
=10x-5
Step-by-step explanation:
in in such an algebra effects of in the brackets which is 5×2x and 5x1 you'll end up getting 10x-5
PLease Help asap !!!!!!!! plus brianliest
Answers
Answer:
100.000 liters of water would b your answer.
Step-by-step explanation:
if you round 103 to the nearest hundred you answer is 100 that how i got my answer 100.000
