Answers
Answer:
the last one and the second one I think. Maybe the first one not very sure.
Related Questions
(x+2)² (x-100)²
Do it
Answers
Answer:
x⁴-196x³+9204x²+32200x+40000
Step-by-step explanation:
(x+2)(x+2)×(x-100)(x-100)=
(x²+4x+4)×(x²-200x+10000)=
(x⁴-200x³+10000x²+4x³-800x²+40000x+4x²-800x+40000)
=x⁴-196x³+9204x²+32200x+40000
x⁴-196x³+9204x²+32200x+40000
What is an equation in slope-intercept form of the line that passes through (6, −7) and is perpendicular to the line shown below?
Answers
Answer:
A. [tex]\displaystyle y = -\frac{1}{2} x -4[/tex]
Step-by-step explanation:
Equation of a Line
The equation of the line in slope-intercept form is:
y=mx+b
Where:
m = slope
b = y-intercept.
The point-slope form of the equation of a line is:
y - k = m ( x - h )
Where:
(h,k) is a point through which the line passes.
The line we are looking for has a slope defined for the fact that is perpendicular to the line shown in the graph.
Two perpendicular lines with slopes m1 and m2 satisfy the equation:
[tex]m_1m_2=-1[/tex]
We'll find the slope m1 of the given line and then solve the above equation for m2:
[tex]\displaystyle m_2=-\frac{1}{m_1}[/tex]
The line of the graph passes through two clear points (-3,-3) and (0,3). Let's calculate the slope.
Suppose we know the line passes through points A(x1,y1) and B(x2,y2). The slope can be calculated with the equation:
[tex]\displaystyle m_1=\frac{3+3}{0+3}=\frac{6}{3}=2[/tex]
Now we calculate the second slope:
[tex]\displaystyle m_2=-\frac{1}{2}[/tex]
We use the point-slope form, given the point (6,-7):
[tex]\displaystyle y + 7 = -\frac{1}{2} ( x - 6 )[/tex]
Operating the parentheses:
[tex]\displaystyle y + 7 = -\frac{1}{2} x +\frac{1}{2}\cdot 6 )[/tex]
Simplifying:
[tex]\displaystyle y = -\frac{1}{2} x +3-7[/tex]
A. [tex]\mathbf{\displaystyle y = -\frac{1}{2} x -4}[/tex]
Solve for b
5/b=45/36
B=
Answers
*cross multiply*
180=45b
180/45 = 45b/45
4 = b
b=4
If (x+2) is a factor of 3x^2-4kx-4k^2, then find the value(s) of k
Answers
Answer:
The values of k will be:
[tex]k=-1,\:k=3[/tex]
Step-by-step explanation:
Let the expression of polynomial P be
[tex]P\left(x\right)=3x^2-4kx-4k^2[/tex]
Let the expression if the polynomial Q be
[tex]\:Q\left(x\right)=\:\left(x+2\right)\:[/tex]
Plug in Q(x) = 0
0 = x+2
x = -2
As (x+2) is a factor of 3x²-4kx-4k²
substitute x = -2 in the the polynomial
3x²-4kx-4k² = 0
[tex]3\left(-2\right)^2-4k\left(-2\right)-4k^2\:=0[/tex]
[tex]12+8k-4k^2=0[/tex]
Write in the standard form ax²+bx+c = 0
[tex]-4k^2+8k+12=0[/tex]
Factor out common term -4
[tex]-4\left(k^2-2k-3\right)=0[/tex]
Factor k²-2k-3: (k+1)(k-3)
[tex]-4\left(k+1\right)\left(k-3\right)=0[/tex]
Using the zero factor principle
if ab=0, then a=0 or b=0 (or both a=0 and b=0)
[tex]k+1=0\quad \mathrm{or}\quad \:k-3=0[/tex]
solving k+1=0
k+1 = 0
k = -1
solving k-3=0
k-3=0
k = 3
Thus, the values of k will be:
[tex]k=-1,\:k=3[/tex]
whats the solution for 9+4n -79 PLEASE ANSWER
Answers
Answer:
I think this is the correct solution
There is a proportional relationship between minutes and dollars per minute, shown on a graph of printing expenses. The graph passes through the point (1, 4.90). What is the slope of the graph? What is the unit rate? Complete the explanation. plz help 100 points and brainliest.
Answers
Answer:
if the graph of a proportional relationship passes through the point (1 , R) then r equals the slope and the unit rate , which is $4.75 per min
Step-by-step explanation:
Alexis will graph the linear equation 6x 2y = 12 by plotting the x-intercept and y-
intercept.
Write the coordinates of the intercepts that Alexis should use.
Answers
Answer:
(0,6) and (2,0)
Step-by-step explanation:
y=-3x+6
Where x = 0 is equal to y=6 (Meaning the intercept is (0,6))
And where y= o is equal to x=2 (Meaning the intercept is (2,0))
please help I will give you brainliest
Answers
Answer:
9x² + 16y² - 24xy
Step-by-step explanation:
(3x - 4y)²
⇒ (3x)² + (4y)² - 2 (3x) (4y) {(a - b)² = a² + b² - 2ab}
⇒ 3²x² + 4²y² - 2 (12xy)
⇒ 9x² + 16y² - 24xy
PLS HELP ILL GIVE BRAINLEIST !!!!!!
15)Big Bird is making wedding favors for Jack and Jill. He can create 3 vases
every hour. He already had 2 vases in his storage area (7 pts)
a Write an equation to model this situation:
b. Graph Big Bird's vases. Be sure to label the axes appropriately
Watch the scales on the axes!!!
hours
vases
12
10
1
2
3
4
6+
4
2
O
i
3
Answers
Answer:
y=3x+2
Step-by-step explanation:
For a the equation is y=3x+2 because he makes 3 every hour (3x) and he already has 2 (+2).
For the graph you replace x with any number and solve. Plot the point.
Then you do it again but with a different x.
Finally you draw a straight line trough the 2 points.
Complete the statements about the key features of the graph of f(x) = x5 – 9x3.
As x goes to negative infinity, f(x) goes to ________ infinity, and as x goes to positive infinity, f(x) goes to _______ infinity.
Answers
Answer:
Negative and positive
Step-by-step explanation:
Complete the statements about the key features of the graph of f(x) = x5 – 9x3.
As x goes to negative infinity, f(x) goes to "NEGATIVE" infinity, and as x goes to positive infinity, f(x) goes to "POSITIVE" infinity.
The complete statement is:
As x goes to negative infinity, f(x) goes to negative infinity, and as x goes to positive infinity, f(x) goes to positive infinity
The function is given as:
[tex]f(x) = x^5 - 9x^3[/tex]
Set x to 2
So, we have:
[tex]f(2) = 2^5 - 9(2)^3[/tex]
[tex]f(2) = -40[/tex]
Set x to 5
[tex]f(5) = 5^5 - 9(5)^3[/tex]
[tex]f(5) = 2000[/tex]
Notice that, as the value of x increases from 2 to 5, the function increases from -40 to 2000
Hence, the texts that complete the blanks are (a) negative and (b) positive, respectively
Read more about function behaviors at:
https://brainly.com/question/24114085
Dana is trying to determine if an unknown sample is a pure substance or not. The sample has a cloudy white color, and it seems evenly mixed throughout. The sample is a liquid with high viscosity. Dana tried separating the sample with a magnet with no effect. When Dana filtered the sample, larger granules of the sample were left behind in the filter. What evidence allowed Dana to conclude that the sample is NOT a pure substance?
Answers
Answer:
b
Step-by-step explanation:
Answer:
The answer is D= Dana filtered the sample and larger granules of the sample were left behind
Step-by-step explanation:
I got it correct ✌
BRUH I NEED HELP PLEASE !!!
Enter your answer as a whole number or a fraction in simplest form
Answers
if you count up one and over four from the first point, you’ll get to the second point, and slope equals rise over run
Answer:
what was the zoom thing again???
Step-by-step explanation:
A math app was downloaded 52 times in 4 days. If it continues to be downloaded at the same rate, what scale factor can be used to find out how many times it was downloaded in 12 days?
Answers
Answer:
= 156 app downloaded in 12 days
use: 13x
plug in the amount of day for x.
Step-by-step explanation:
52/4 = 13
13x
13(12) = 156
Ace Carlos
Mark works at a clothing store and earns a 20% commission on his total sales. Last month, Mark sold $1,500 in clothing total sales. What was his commission last month?
A.
$20
B.
$30
C.
$300
D.
$600
Answers
Answer:
It would be C
Step-by-step explanation:
Use a calculator, or go in Accounting.
Hope this helps :)
I will give you brainlest plzzzz helppp!!!
Answers
Answer:
The measure of angle Q is 133 degrees
Step-by-step explanation:
(x + 13) + (10x + 13) + (2x - 2) = 180 //There are 180 degrees in a triangle
x + 13 + 10x + 13 + 2x - 2 = 180 //Remove parentheses
13x + 24 = 180 //Combine like terms
13x = 156 //Subtract 24 from each side
x = 12 //Divide to get value of x
10(12) + 13 = Measure of angle Q //We know Q is 10x + 13, since we know what x is 12 from the previous step we'll substitute x for 12
120 + 13 = Measure of angle Q //Multiple 10 and 12
133 = Measure of angle Q
Triangle PQR is dilated by a scale factor of 1.5 to form triangle P′Q′R′. This triangle is then dilated by a scale factor of 2 to form triangle P″Q″R″. If vertex P is at (3, -4) and vertex Q is at (5, -1), what are the coordinates of vertices P″ and Q″?
Answers
Answer:
Answer: The correct option is (D) P″(9, -12) and Q″(15, -3).
Step-by-step explanation: Given that triangle PQR is dilated by a scale factor of 1.5 to form triangle P′Q′R′. This triangle is then dilated by a scale factor of 2 to form triangle P″Q″R″.
The co-ordinates of vertices P and Q are (3, -4) and (5, -1) respectively.
We are to find the co-ordinates of the vertices P″ and Q″.
Case I : ΔPQR dilated to ΔP'Q'R'
The co-ordinates of P' and Q' are given by
Case II : ΔP'Q'R' dilated to ΔP''Q''R''
The co-ordinates of P'' and Q'' are given by
Thus, the co-ordinates of the vertices P'' and Q'' are (9, -12) and (15, -3).
Option (D) is CORRECT.
Step-by-step explanation:
PLEASE HURRY ILL GIVE BRAINLIEST!!!!!!!!!!!
Which of the following numbers is irrational
A. -9/5
B. √5
C. 7/3
D. √9
Answers
2 more because im going broke lol
Answers
Jesse added two more numbers to his expression, but the sum did not change. What could the two new numbers be? Explain why the numbers you chose would not affect the sum of Jesse’s expression.
Answers
Answer:
0 and 0
Step-by-step explanation:
The only number that can be applied to the expression without changing the sum is 0, for example 5 + 10 = 15, adding 2 0's will be 0 + 5 + 10 + 0 = 15 :D
complete the table i’ll give brainliest
Answers
Answer:
1. 4
2. 11
3. 18
4. 25
Step-by-step explanation:
14. A six-sided die is rolled and a fair coin is flipped.
Find the probability that the die lands on an 2 or 3 and the
coin comes up tails.
Answers
Answer:
The probability that the die will land on 2 or 3 Is a 1/6 chance the coin to land on tails is a 1/2 chance.
Hope this helps!
2) What is the equation of the line parallel to y=2x-2 passing through the
point (1,3)
y=2x-3
Oy=2x+1
Oy=-1/2x-2
Oy=1/2 x-2
Answers
Answer:
I believe the answer is c hope this helps
Write the expression in simpleist form PLZ WILL GIIVE BRAINLIEST
1 + x + 6x -6
1. 28x - 5
2. 24x - 5
3. 7x - 5
4. 7x - 6
Answers
Answer:
3. 7x-5
Step-by-step explanation:
x+ 6x will make it 7x then -6 plus 1 will make it a -5 so t will be 7x-5.
. What is 7/10 as a percent?
Answers
Answer:
70%
Step-by-step explanation:
5/10. 50%
6/10. 60%
7/10. 70%8/10. 80%
9/10. 90%
Answer:
70%
Step-by-step explanation:
Write the equation in slope-intercept form. Do not use any spaces. Make sure your answer looks like y=mx+b. Y + 6 = 3(x - 4) *
Answers
Answer:
y = 3x+ 18
Step-by-step explanation:
Given the expression y + 6 = 3(x-4), we are to express in the form y = mx+b
Open the bracket
y + 6 = 3(x-4)
y+6 = 3x-12
Collect the like terms;
y - 3x = -12 - 6
y - 3x = 18
y = 3x + 18
Hence the required equation in slope-intercept form is y = 3x+ 18
jeremy ran 4 more miles then twice of kate, k, ran. which expression can be used to represent the situation
Answers
Answer:
2k+4
Step-by-step explanation:
Jeremy ran
2k+4
Jeremy ran 4 more miles than twice of Kate.
Given, distance covered by Kate = k
Let distance covered by Jeremy = x
According to Question :
Distance covered by Jeremy = 4 + 2 × distance covered by Kate
Hence, x = 4 + 2k
Therefore, expression used to represent situation is :
x = 4 + 2kWhat is the difference?
(-4x + 3) - (7x - 3x2 - 1)
Answers
Answer:
-5x + 4
Step-by-step explanation:
Daniel has a coupon for $1.44 off
name-brand flour that usually costs
$9.12. The store-brand flour costs $8.86.
How much will Daniel save by using his
coupon to buy the name-brand flour,
instead of buying the store-brand?
I’m mostly struggling with the problem steps part I can do the first parts but then the other steps I struggle with.
Answers
Answer:
Daniel will save $1.18
Step-by-step explanation:
First, find the cost of the name-brand flour with the coupon:
Subtract 1.44 from the original price of 9.12:
9.12 - 1.44
= 7.68
So, the price of the name-brand flour with the coupon is $7.68
Now, find how much he will save by finding the difference between this price and the price of the store brand flour:
8.86 - 7.68
= 1.18
So, Daniel will save $1.18
A grocery store recently sold several cans of soup.
32
split pea
black bean
minestrone
mm
vegetable beef 3
lentil
21
What is the experimental probability that the next can sold will be lentil soup?
Write your answer as a fraction or whole number.
P(lentil) =
Submit
don't know this
Answers
Answer:
21/60
Step-by-step explanation:
32 + 1 + 3 + 3 + 21 = 60
ans = 21/60
Answer:
Step-by-step explanation:
21/60
8. A restaurant bill before tax is $15.60. How much is a 15% tip for this bill?
Answers
Answer:
Step-by-step explanation:
the tip would be = 2.325 which rounds up to 2.33$ in total this would be17.83
