Answers
Answer:it’s factorable
Step-by-step explanation:
I mean I don’t really hve a method to this but u could use the ac method as a is greater than 1. I just factorise in my head automatically.
Answer:
(x + 3)(3x - 2)
Step-by-step explanation:
Multiply the 3 and -6 together to get -18 . What two numbers add to 7 and multiply to -18? 9 and -2
So we can now split the middle term like this...
= 3x^2 + 9x - 2x - 6
Now factor a 3x out of the first two terms.
= 3x(x + 3) - 2x - 6
Now factor a -2 out of the last two terms.
= 3x(x + 3) - 2(x + 3)
Now factor a (x + 3) out of both remaining terms.
= (x + 3)(3x - 2)
Related Questions
What is angle U?
A) 129
B) 42
C) 34
D) 43
Answers
Step-by-step explanation:
4x+2+95=-7+17x
104=13x
x=8
for angle U=34 degrees
the answer is C
When creating your budget, make sure the amounts (both income and expenses)
a. are for the same time period.
b. total to zero.
c. create a negative balance.
d. are for the same amount.
Answers
Answer:
a. are for the same time period
A line with a negative slope is perpendicular to one of the lines shown. What is its slope? Use the graph shown below. The slope is:
Answers
Given:
A line is perpendicular to the given line and having negative slope.
To find:
The slope of the line.
Solution:
We know that, product of slopes of two perpendicular lines is -1.
[tex]m_1\cdot m_2=-1[/tex]
[tex]m_1=-\dfrac{1}{m_2}[/tex]
It means, one slope is opposite and reciprocal of other.
Slope formula:
[tex]m=\dfrac{y_2-y_1}{x_2-x_1}[/tex]
From the given graph it is clear that, blue line passes through (0,3) and (2,4). So, slope of blue line is
[tex]m_B=\dfrac{4-3}{2-0}[/tex]
[tex]m_B=\dfrac{1}{2}[/tex]
The slope of blue line is [tex]\dfrac{1}{2}[/tex]. So, slope of the line which is perpendicular to the blue line is -2, which is negative.
From the given graph it is clear that, red line passes through (0,4) and (4,3). So, slope of red line is
[tex]m_R=\dfrac{3-4}{4-0}[/tex]
[tex]m_R=\dfrac{-1}{4}[/tex]
The slope of blue line is [tex]-\dfrac{1}{4}[/tex]. So, slope of the line which is perpendicular to the blue line is 4, which is positive.
Therefore, the slope of the line which is perpendicular to the given line and having negative slope, is -2.
Someone please help with this question please
Answers
Step-by-step explanation:
Since Angle DAE = Angle BCE, lines AD amd BC are parallel (by Z-angles).
This means that Angle ADE = Angle CBE (by Z-angles).
We have 2 congruent angles and 1 congruent side (AD = BC, given).
By ASA congruence, triangles AED and CEB are congruent.
B.P. Mathur v. Union Of India
The sum of the angles of any triangle is
Answers
Answer:
180 degrees
Step-by-step explanation:
Given the graphed function below, which of the following ordered pairs are
found on the inverse function?
Answers
Answer: Option B.
Step-by-step explanation:
A linear function can be written as:
y = a*x + b
where a is the slope and b is the y-intercept.
if the line passes through the points (ax, ay) and (bx, by) then the slope is:
a = (bx - ax)/(by - ay)
In this case, we can see that the line passes through the points:
(1, 3) and (2, 1)
Then the slope is:
a = (1 - 3)/(2 - 1) = -2
y = -2*x + b
In the graph we also can see that the line intersects the y-axis at y = 5, then b = 5.
The line is:
y = f(x) = -2*x + 5.
the inverse function is such that:
g( f(x)) = x
to find the inverse function of a linear equation, we just could isolate x.
y - 5 = -2x
-y/2 + 2.5 = x
Then we could write the inverse function as:
g(x) = - x/2 + 2.5
Now we need to see which pairs belong to this line. I just will evaluate the function g(x) in different values of x, and see which points belong to the line.
g(9) = -9/2 + 2.5 = -4.5 + 2.5 = -2
(9, -2) belongs to the line.
g(7) = -7/2 + 2.5 = -3.5 + 2.5 = -1
Then (7, -1) belongs to this line.
g(5) = -5/2 + 2.5 = 0
Then the point (5, 0) belong to this line.
We can already see that all these points are in option B, then option B is the correct one.
√2x-7+X= 5
Solve the equation with work shown below
Answers
Answer:
[tex]x=12(\sqrt2-1)[/tex]
Step-by-step explanation:
The given equation is :
[tex]\sqrt{2} x-7+x=5[/tex]
Add 7 to both sides of the equation.
[tex]\sqrt{2} x-7+x+7=5+7\\\\\sqrt{2} x+x=12[/tex]
Taking x common from both sides of the equation.
[tex]x(\sqrt{2} +1)=12\\\\x=\dfrac{12}{\sqrt2+1}[/tex]
Multiplying both numerator and denominator by [tex]\sqrt2-1[/tex]
[tex]x=\dfrac{12}{\sqrt2+1}\times \dfrac{\sqrt2-1}{\sqrt2-1}\\\\=\dfrac{12(\sqrt2-1)}{2-1}\\\\=12(\sqrt2-1)[/tex]
Hence, the value of x is [tex]12(\sqrt2-1)[/tex].
Which situation leads to a unit cost of $6 per
football ticket?
Select one:
1)$6 paid for 2 football tickets
2)$6 paid for 6 football tickets
3)12 football tickets for $72
4)6 football tickets for $24
Answers
The gardening store sells clay flower pots, which hold 2 litres of dirt, and ceramic flower pots, which hold 7 litres. Tara bought 35 flower pots, which will hold a total of 150 litres of dirt. How many of each flower pot did she buy?
Answers
Answer:
The number of clay flower pots = x = 19
The number of ceramic flower pots = y = 16
Step-by-step explanation:
Let
The number of clay flower pots = x
The number of ceramic flower pots = y
Tara bought 35 flower pots
= x + y = 35
x = 35 - y
The gardening store sells clay flower pots, which hold 2 litres of dirt, and ceramic flower pots, which hold 7 litres. Tara bought 35 flower pots, which will hold a total of 150 litres of dirt.
Hence:
2x + 7y = 150.... Equation 2
Substitute 35 - y for x in Equation 2
2 (35 - y) + 7y = 150
70 - 2y + 7y = 150
-2y + 7y = 150 - 70
5y = 80
y = 80/5
y = 16 flower pots
x = 35 - y
x = 35 - 16
x = 19 flower pots
The number of clay flower pots = x = 19
The number of ceramic flower pots = y = 16
Answer:
The number of clay flower pots = 19
The number of ceramic flower pots = 16
Step-by-step explanation:
coach purchased footballs and basketballs from two different stores.
Each football costs the same amount, and each basketball costs the same
amount.
At the first store, the coach paid $110 for 5 footballs and 14 basketballs.
At the second store, the coach paid $82.50 for 10 footballs and 6
basketballs.
What was the cost in dollars of each basketball?
Answers
Answer:
$6.25Step-by-step explanation:
Let football cost be f and basketball cost be b
We have two equations as per given:
5f + 14b = 11010f + 6b = 82.50We need to find b, therefore we'll eliminate f
To do so we'll double the first equation and subtract the second one:
2(5f + 14b) - (10f + 6b) = 2(110) - 82.5028b - 6b = 220 - 82.5022b = 137.5b = 137.5/22b = 6.25Each basketball costs $6.25
Question:
Coach purchased footballs and basketballs from two different stores.
Each football costs the same amount, and each basketball costs the same amount.
At the first store, the coach paid $110 for 5 footballs and 14 basketballs.
At the second store, the coach paid $82.50 for 10 footballs and 6 basketballs.
What was the cost in dollars of Each basketball?
Answer:
Probably 7
REAL Answer:
6.25
Your Welcome! (^·^)
#TeamTrees #TeamSeas #TeamEducation #TeamWorkMakesDreamWork #TeamSpirit #NoSleep #TeamIPhone #TeamBrainly
Need Help ASAP
Slope = -7;(4,-30)
Answers
Answer:
y=-7x-2
Step-by-step explanation:
I assume you need the equation for the line, so that's what I'm solving for here.
1. Start by putting the slope and the coordinates into point slope form, which is y-y1=m(x-x1)
y+30=-7(x-4)
2. Distribute -7 to (x-4) (or multiply x and -4 by -7).
y+30=-7x+28
3. Subtract 30 from both sides to get y by itself.
y=-7x-2
a.
Missing x:-2
Missing y:0
c.
Missing x:-2
Missing y:2
b.
Missing x:0
Missing y:1
d.
Missing x:-1
Missing y:1
Answers
Answer:
B
Step-by-step explanation:
The pattern is x/-3
-3( 2r + 7) = 3 pls help
Answers
Answer:
R=-4
Step-by-step explanation:
-3(2r+7)=3
-6r-21=3
-6r=24
r=-4
I hope this is correct and have a great day
1.
(03.01 LC)
The leg of a right triangle is 2 units and the hypotenuse is 4 units. What is the length, in units, of the other leg of the triangle? (5 points)
2 units
6 units
Square root of 12 units
Square root of 20 units
Answers
Answer:
[tex]\sqrt{12}[/tex] units
Step-by-step explanation:
Using Pythagoras' identity in the right triangle.
The square on the hypotenuse is equal to the sum of the squares on the other 2 sides.
let x be the other leg, then
x² + 2² = 4²
x² + 4 = 16 ( subtract 4 from both sides )
x² = 12 ( take the square root of both sides )
x = [tex]\sqrt{12}[/tex] units
which can be simplified to 2[tex]\sqrt{3}[/tex] units , if required.
Which of the following is an equation of the line through (3, −1) and (−2, 14)?
y=1/5x+ 13/5
y= -1/5 x+ 17/5
y = -3x + 8
y = 3x + 8
Answers
i need help quick!!!!! Ive been trying to figure this out for 20 mins now.
Whats one plus one?
A: 2
B:11
C:0
or D: not this one
Answers
Answer:
take one finger and than the other and how may fingers do you have now 2
The graph of a linear relationship passes
through (0, 2), (1,5), and (3, 11) but not
through (2, 7). Which of the following is
the equation for this linear relationship?
A y= 2x + 3 Cy=5x
B y = 3x + 2
Dy= 4x - 1
Answers
Answer:
The equation of the linear relationship is y = 3x + 2 ⇒ B
Step-by-step explanation:
To solve the question substitute the x in the equation by the x-coordinate of each point to find y, if y equals the y-coordinate of the point, then the point is on the graph of the equation
A.
∵ y = 2x + 3
→ Use the first point (0, 2)
∵ x = 0
→ Substitute x by 0 in the equation
∴ y = 2(0) + 3
∴ y = 0 + 3 = 3
∵ The y-coordinate is 2
∴ The point (0, 2) does not lie on the graph of the relationship
∴ The equation y = 2x + 3 doesn't represent the equation of the relationship
B.
∵ y = 3x + 2
→ Use the first point (0, 2)
∵ x = 0
→ Substitute x by 0 in the equation
∴ y = 3(0) + 2
∴ y = 0 + 2 = 2
∵ The y-coordinate is 2
∴ The point (0, 2) lies on the graph of the relationship
→ Use the second point (1, 5)
∵ x = 1
→ Substitute x by 1 in the equation
∴ y = 3(1) + 2
∴ y = 3 + 2 = 5
∵ The y-coordinate is 5
∴ The point (1, 5) lies on the graph of the relationship
→ Use the third point (3, 11)
∵ x = 3
→ Substitute x by 3 in the equation
∴ y = 3(3) + 2
∴ y = 9 + 2 = 11
∵ The y-coordinate is 11
∴ The point (3, 11) lies on the graph of the relationship
→ Use the fourth point (2, 7)
∵ x = 2
→ Substitute x by 2 in the equation
∴ y = 3(2) + 2
∴ y = 6 + 2 = 8
∵ The y-coordinate is 7
∴ The point (2, 7) doesn't lie on the graph of the relationship
∴ The equation of the linear relationship is y = 3x + 2
-7(6x+7)=-133
show work
Answers
Answer:
multiply -7 by 6x and then multiply-7 by 7
-7(6x)-7(7)
-42x-49=-133
+49. +49
the 49 cancel out
-42x=-84
divide both sides by -42
-42x/-42=-84/-42
the -42 cancel out
leaving x=2 the negatives cancel out making it positive
help me please! ill make you brainliest.
Answers
A researcher wanted to know which type of toy 3-year-olds prefer for play. The researcher placed a tricycle, blocks, a train set, and puzzles in a room and observed how many of 20 children played with each type of toy. What is the k value for this study
Answers
Answer:
k = 4
Step-by-step explanation:
The formula for binomial probability distribution is;
P(X = k) = C(n, k) × p^(k) × (1 - p)^(n - k)
Where C(n, k) is the number of possible ways that n number of people choose k.
While p is probability of success
In this question, 20 children want to choose from 4 toys namely tricycle, blocks, a train set, and puzzles.
This means that from binomial probability distribution formula, n = 20 and k = 4.
Write a quadratic equation in standard form that has two solutions, 6 and - 8
Answers
0
at the given points
6
and
−
10
.
Our quadratic equation should be a product of expressions which are zero at the specified roots.
Consider
(
x
−
6
)
⋅
(
x
+
10
)
=
0
This equality holds if
x
=
6
since
(
6
−
6
)
⋅
(
6
+
10
)
=
0
⋅
16
=
0
And the equality holds if
x
=
−
10
since
(
−
10
−
6
)
⋅
(
−
10
+
10
)
=
−
16
⋅
0
=
0
Expanding this equation by the FOIL method, we get:
x
2
+
10
x
−
6
x
−
60
Combining like terms, we find our solution:
A3ft board weighs 2 pounds. How much
does a 12 ft board weigh?
Answers
Answer:
8 pounds
Step-by-step explanation:
3 ft board = 2lb
12 ft board is 4 times more so
2x4 = 8 lb
i need help!! please
Answers
========================================================
Explanation:
The old dimensions of the rectangle were 30 by 15.
The new dimensions are 30+x by 15+x, where x is some positive number.
The new rectangle dimensions multiply to 1000
(30+x)(15+x) = 1000
Use the FOIL rule to expand out the left side like so
(30+x)(15+x) = 1000
450+30x+15x+x^2 = 1000
450+45x+x^2 = 1000
x^2+45x+450
Then lets get everything to one side
x^2+45x+450 = 1000
x^2+45x+450-1000 = 0
x^2+45x-550 = 0
---------------------
From here we use the quadratic formula
Plug in a = 1, b = 45, and c = -550.
[tex]x = \frac{-b\pm\sqrt{b^2-4ac}}{2a}\\\\x = \frac{-(45)\pm\sqrt{(45)^2-4(1)(-550)}}{2(1)}\\\\x = \frac{-45\pm\sqrt{4225}}{2}\\\\[/tex]
[tex]x = \frac{-45\pm65}{2}\\\\x = \frac{-45+65}{2} \ \text{ or } \ x = \frac{-45-65}{2}\\\\x = \frac{20}{2} \ \text{ or } \ x = \frac{-110}{2}\\\\x = 10 \ \text{ or } \ x = -55\\\\[/tex]
Earlier we defined x to be a positive number. This means we ignore x = -55. It makes no sense to add on a negative amount to each dimension.
The only practical answer is x = 10.
So each dimension is increased by 10 feet.
--------------------------
If x = 10, then the old dimensions of 30 by 15 bump up to 30+10 = 40 by 15+10 = 25
Then note how 40*25 = 1000, which helps confirm we have the correct dimensions.
--------------------------
Now go back to the question at hand: we want to find the new width. The old width was 30 feet. The new width is 30+x = 30+10 = 40 feet
I NEED HELP FAST!!!
What is the area of this figure?
Enter your answer in the box.
Answers
Answer:
81
Step-by-step explanation:
area of top triangle = 1/2 x 8 x 9 = 36
area of rhombus = 9 x 5 = 45
sum of areas = 81
Divide the polynomials.
right answers only
Answers
Answer:
x+9
Step-by-step explanation:
I got it right on the quiz
6. Which expression is equivalent to (14442,6 for all positive values of k and r? OF 12kr7 O G.726?-14 OH 144kry O J. 126-14
Answers
Answer:
the answer is 12k²r¹⁴.........
y+1=5(x−9) is it linear or non-linear?
Answers
Answer:
yes its linear
Step-by-step explanation:
YALL I NEED HELP, I’m BEGGINGGGGGF
Answers
Answer:
the first one
Step-by-step explanation:
☺️☺️☺️☺️☺️☺️☺️☺️☺️☺️
Can somebody tell me the equation to this please ?? ASAP
Answers
Answer:
y= -5/1 + 1.90
Step-by-step explanation:
The y-intercept is hard to tell
But the rest is right
Answer:
I have a picture if that helps
Step-by-step explanation:
PLEASE HELP VERY URGENT!!!!
Which of the following is equal to 16.4 ?
A. 16 • 4
B. 32
D. 64
Answers
Answer:
A or B
Step-by-step explanation:
Also i need help to
Answer:
A. [tex]\sqrt{16}[/tex] × [tex]\sqrt{4}[/tex]
I hope this helps!