(3x + 1) (x - 2)
= 3x(x - 2) + 1(x - 2)
= 3x² - 6x + x - 2
= 3x² - 5x - 2
6n + 9 = -3n-21-6 for n
Please help I am very confused
Answer:
n=-4
Step-by-step explanation:
[tex]6n+9=-3n-21-6\\6n+9=-3n-27\\9n=-36\\n=-4\\[/tex]
Hope this helps plz hit the crown :D
Find the area.
A.80 in sq
B.140 in sq
C.70 in sq
D.35 in sq
Answer:
C. 70 in sq
Step-by-step explanation:
The formula of a trapezoid is the A = a + b / 2 multiplied by height. (a and b are the bases). If you plug in the numbers into the formula, you will get 70.
Order the set of integers from greatest to least.
{-100, -89, -124, -69, -52}
Answer:
-52, -69, -89, -100, -124
Step-by-step explanation:
Answer:
-124,-100,-89,-62,-52
Step-by-step explanation:
If the number is a high number and it's a negative it is the least. For example, if you have $-100 in your bank account, that's worse than having $-52. I hope this helps.
the ratio of length, breadth and height of a room is 4:3:1. If 12m^3 air is contained in a room, find the length , breadth and height of the room
9514 1404 393
Answer:
length: 4 mbreadth: 3 mheight: 1 mStep-by-step explanation:
The product of ratio units is 12 unit³, so each must stand for 1 m.
The dimensions of the room match the ratio units:
4 m length by 3 m breadth by 1 m height
Could anyone help me with 4 questions about inequalities?
I will give points and brainiest.
Answer:
Put a shaded dot in 9 and an arrow pointing left
Step-by-step explanation:
Which functions are symmetric about the y-axis? Check all of the boxes that apply.
The functions that are symmetric about the y-axis are;
1) The function in the first option; f(θ) = cos(θ)
2) The function in the third option; f(x) = x²
Reason for the above selection;
Definition;
A function is symmetric about the y-axis is also known to be an even function such that the same value of the function is arrived at when x is replaced with -x
Analysis of the graphs;
First Function Graph; The graph represents the graph of cos (θ)
∴ The function is f(θ) = cos(θ)
The value of the function when x = π, f(π) = -1
Similarly, the value of the when x = -π, f(-π) = -1
f(π) = f(-π)
∴ f(x) = f(-x)
Therefore; the first function is an even function
Second Function Graph; The function of the graph is x = y²
∴ y = √(x)
The value of the function when x = 4, y = f(4) = 2
However, the when x = -4, f(-4) does not exist
f(4) ≠ f(-4)
∴ f(x) ≠ f(-x)
Therefore; the second function is not an even function (the function, x = y², is however symmetric about the x-axis)
Third Function Graph; The function the graph represents is y = x²
The value of the function when x = 2, f(2) = 4
Similarly, the value of the when x = -2, f(-2) = 4
f(2) = f(-2)
∴ f(x) = f(-x)
Therefore; the third function is an even function
From the above, the functions which are symmetric about the y-axis, (even functions) are;
The first and the third functions
Learn more about symmetric functions here;
https://brainly.com/question/1461050
Answer:
first and third ones
Step-by-step explanation:
you`re welcome
find da slope!!!!! help!!!!!!!!!!
Answer:
This is graph right
Step-by-step explanation:
is this maths or economics
PLEASE HELP IM BEING TIMED
When 0.5(20x – 50y + 36) – 0.25(–100x + 40y – 12) is simplified, what is the resulting expression?
Answer:
35x-35y+21
Step-by-step explanation:
.5(20x-50y+36)-.25(-100x+40y-12)
10x-25y+18+25x-10y+3
35x-25y+18-10y+3
35x-35y+18+3
35x-35y+21
35x-35y+21
Step-by-step explanation:
WILL GIVE BRAINLIEST. The data give the average number of days in May that are clear and cloudy in two cities.
Answer:57
Step-by-step explanation:
Answer:
B) 0.57
Step-by-step explanation:
It says "given that you are in Sacramento", so hint: only look at the Sacramento row. Ignore everything else, you don't need it.
Then it asks what is the probability of a clear day, so you look at the "Clear" column from the Sacramento row. That would be 17 days.
Lastly, you just simply divide from the total days. 17/30 = 0.57
A boat leaves a pier and travels 15 miles due east, then turns and travels 15 miles in the direction N 20 E. Which diagram represents the boats current distance x from the pier?
Answer:
I chose B
Step-by-step explanation:
Because it goes north and east, and i got an 84
Answer:
The answer is A
Step-by-step explanation:
because the green arrow represents the 15 miles East, then the blue arrow is 20degrees east of a line straight up and down, so its N 20 E
Step-by-step explanation:
PLZ HELP ME ON THIS MATH I HAVE DONE IT 4 TIMES AND MADE2 25% and 1 45% so i really need help its worth 100 points
Answer:
Whats the question?
Step-by-step explanation:
The answer is A: 74 m^2
PLEASEEE HELPP MEEE!!
Answer:
B, 0.07c
Step-by-step explanation:
to get the total sales tax, you need to multiply the price by the tax percent in decimal.
7%=0.07
c= the price
total price =0.07c
lisa drank 1/3 quart of orange juice and lane drank 1/2 quart of orange juice. how many quarts did they drink together
Answer:
[tex]\frac{5}{6}[/tex] quarts
Step-by-step explanation:
Total amount of drinks = [tex]\frac{1}{3}[/tex] + [tex]\frac{1}{2}[/tex]
You would want to make the denominators the same before adding them, so I will multiply the first fraction by 2 and the second one by 3 so their denominators are 6.
[tex]\frac{1}{3}[/tex] + [tex]\frac{1}{2}[/tex] = [tex]\frac{2}{6}[/tex] + [tex]\frac{3}{6}[/tex]
Now we can directly add them together while keeping the denominator the same.
[tex]\frac{2}{6}[/tex] + [tex]\frac{3}{6}[/tex] = [tex]\frac{5}{6}[/tex] quarts
A javelin thrower knows that the angle from the ground their javelin sits when landing is 140° What is the second angle formed with the javelin and the ground? Assume the ground is a straight line. Show all work in solving for the angle measure.
Answer:
40°
Step-by-step explanation:
the ground is a straight line, which is 180°
its just 180°-140°=40°
1 Type the correct answer in the box. Use numerals Instead of words. Karl has two one-dollar bills, a twenty-dollar bill, three ten-dollar bills, and two five-dollar bills in his wallet, Karl has $ In his wallet.
Answer:
62
Step-by-step explanation:
2+20+30+10=62
Audrey bought a refrigerator for $266 that was originally priced at $665. What percentage is the discount?
Answer:
40.6%
Step-by-step explanation:
discount percentage:
x/y*100
266/655 *100 which is 40.6%
Hope this helps plz hit the crown :D
PLEASE HELP Consider the rectangle reduction.
A larger rectangle has a length of StartFraction 17 over 8 EndFraction inches and width of StartFraction 11 over 6 EndFraction inches. A smaller rectangle has a length of StartFraction 17 over 10 EndFraction inches and width of x inches.
What is the missing dimension of the reduced rectangle?
Answer:
Sorry if this is late but it's 11/15
Step-by-step explanation:
I did it on edg 2020 so ye
Answer:
the first one 11/15
Step-by-step explanation:
Consider the function f(x) = (x+ 1)2 - 1. Which of the following functions stretches
fo) vertically by a factor of 4?
O A) f0 - (/ax+ 1)2 +3
O B) f9 = 1/ax+ 1)2 -4
Oo fo-4(x+ 1)2 - 1
OD) fo = 4(4x+ 1)2- 1
Answer:
C
Step-by-step explanation:
A coefficient of 4 would have to be added in front of (x+1)^2 in order to vertically stretch the function by a factor of 4.
The answer that demonstrates this is choice C: [tex]f(x) = 4(x+1)^2-1[/tex]
The functions stretches vertically by a factor of 4 will be f(x) = 4(x+ 1)² - 1. Then the correct option is C.
What is the equation of the parabola?Let the point (h, k) is the vertex of the parabola and a is the leading coefficient.
Then the equation of the parabola will be given as,
y = a(x - h)² + k
The quadratic function is given below.
f(x) = a(x+ 1)² - 1
If the value of the leading coefficient lies between 0 to 1. Then the parabola is stretched horizontally.
And if the value of the leading coefficient is greater than one. Then the parabola is stretched vertically.
The functions stretches vertically by a factor of 4. Then the value of the leading coefficient is 4. Then the equation will be
f(x) = 4(x+ 1)² - 1
Then the correct option is C.
More about the equation of parabola link is given below.
https://brainly.com/question/20333425
#SPJ5
Question 10 (1 point)
Give the slope-intercept form of the equation of the line that is perpendicular to
6x – 3y = 10 and contains P(5,3).
Slope1 * 1\slope2= -1 when line 1 is normal to line 2
Slope of first line (6x-3=10) = -2
Slope = 0.5
0.5X-2.5=y-3
Y= 0.5x+0.5
Y= 0.5(x+1)
Find the radius of a circle that has a circumference of 16
Answer:
r≈2.55
hope this helps!
j − 47 = 37 what would j =
Answer:
84
Step-by-step explanation:
37 + 47 = 84
Answer:
10
Step-by-step explanation:
47-37=10
What is 3 x 3 -6 x 87 =
Answer:
-513
Step-by-step explanation:
use gemdas (order of operations) to find your answer!
g- groupings
e- exponents
m- multiplication
d- division
a- addition
s- subraction
3 x 3 = 9
6 x 87 = 522
9 - 522 = -513!
Answer:
261
Step-by-step explanation:
First you have to multiply
[tex]3 \times 3 = 9[/tex]
Second you you have to multiply again
[tex]6 \times 87 = 522[/tex]
Finally you have to subtract
[tex]9 - 522 = - 513[/tex]
Identify the domain of the function.
Answer:
Step-by-step explanation:
domain represents the numbers at the x endpoints of a graph.
on the graph we see that on the left, the line ends when x is -4
on the right, the line ends when x is 4
the domain is
-4, 4
but notice how on the left there is an open circle
this will be written with a parentheses
( -4, 4
and notice how on the right there is a closed circle
this will be written with a bracket
(-4, 4]
so the answer is C
The diameter of a circle is 10 m. Find its circumference in terms of \piπ.
Answer:
31.42 m
Step-by-step explanation:
10* π= 31.415( which can round to 31.42)
Step-by-step explanation:
Diameter= 10 m
Circumference of a circle= π×Diameter
= π×10
= 31.41593 or 31.42
Solve 4x + 8y = 16 for x.
O A. x=-8y + 4
O B. x= -2y+ 16
O C. x= -2y+ 4
D. X = 8y + 16
4x + 8y = 16
4x = 16 - 8y
4x = 4 (4 - 2y)
x = 4( 4 - 2y)/4
X = 4 - 2y
X = -2y + 4
!!!!PLEASE I NEED HELP PLEASE ANSWER 1 AND 2! PLEASE ANSWER CORRECTLY ASAP!!!!
Which graph is and is not a function!?
Answer:
The first one is a function. The other two are not functions.
Step-by-step explanation:
To find this, you use the vertical line test. If the vertical line touches multiple points on the graphed line, it is not a function. If the vertical line only touches the graphed line at one point, it is a function.
Good Luck! I hope this helps!
PLEASEEE HELLPP!!!!
please don’t answer if you don’t know this is a exam
5. A bus traveled 35 kilometers in 60 minutes. What was its speed?
Answer: 35 kilometers an hour or 21.7 miles per hour
Step-by-step explanation:
Answer:
35/1
Step-by-step explanation:
km/h
Determine if (1, 3) is a solution to the given system of linear equations. 5x+y=8 x+2y=5 (1 point)
No, because substituting the given ordered pair yields two true expressions.
No, because substituting the given ordered pair doesn't yields two true expressions.
Yes, because substituting the given ordered pair doesn't yield two true expressions.
Yes, because substituting the given ordered pair yields two true expressions.
5x+y=8 equation 1
x+2y=5 equation 2
Subsitute (1,3) in bothe equations if the right side is equal to.the left side of the equation then (1,3) is a solution
5(1)+3=8
1+2(3)=7
7 isn't equal to 5 so 1,3 is NOT a solution for this system of equations
Answer:
No, because substituting the given ordered pair doesn't yield two true expressions
Step-by-step explanation:
:)