Answer:
-x2+21x+3
Step-by-step explanation:
[tex]\\ \sf\longmapsto 9x-(x-3)(x+1)+10x[/tex]
[tex]\\ \sf\longmapsto 9x-(x^2-2x-3)+10x[/tex]
[tex]\\ \sf\longmapsto 9x-x^2+2x+3+10x[/tex]
[tex]\\ \sf\longmapsto 9x+2x+10x-x^2+3[/tex]
[tex]\\ \sf\longmapsto 21x-x^2+3[/tex]
Simplify
x² - 9 / х^2 - 3x
Answer:
[tex]\frac{x+3}{x}[/tex]
Step-by-step explanation:
Factorise numerator and denominator
x² - 9 ← is a difference of squares and factors in general as
a² - b² = (a - b)(a + b) , then
x² - 9
= x² - 3² = (x - 3)(x + 3)
x² - 3x ← factor out x from each term
= x(x - 3)
Then
[tex]\frac{x^2-9}{x^2-3x}[/tex]
= [tex]\frac{(x-3)(x+3)}{x(x-3)}[/tex] ← cancel common factor (x - 3) on numerator/denominator
= [tex]\frac{x+3}{x}[/tex]
how do you solve 4x+1=9+4y
Answer:
x-y = 2
Step-by-step explanation:
I think it the right answer
A regular polygon has 20 sides
work out the sum of the interior angles of the polygon
work out the size of the interior angles
Step-by-step explanation:
The sum of the interior angles of a regular n-gon is given by the formula (n-2)180. Hence, in our case n=20 and we have the answer of 18(180)=3240 degrees.
Step-by-step explanation:
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What is the measure of an interior angle of a regular polygon with 20 sides?
Geometry Angles with Triangles and Polygons
1 Answer
mason m
Jan 2, 2016
162
˚
Explanation:
The sum of the interior angles in a regular polygon with
n
sides is found through the formula
180
˚
(
n
−
2
)
Here,
n
=
20
, so the sum of the interior angles is
180
˚
(
20
−
2
)
=
180
˚
(
18
)
=
3240
˚
To find just one angle, divide
3240
˚
by
20
since all
20
angles are congruent.
3240
˚
20
=
162
˚
click on the attachment <3 answer, please and thank you (:
Answer:
10
Step-by-step explanation:
x-7=?
x=17
17-7=10
7+10=17
17=17 Correct :)
The function his a quadratic function whose graph is a translation 7 units left and 9 units up function f(x) = x². What is the equation of h in vertex form and in the form y = ax²+bx+c?
Warm Up For each translation of the point (–2, 5), give the coordinates of the translated point. 1. 6 units down (–2, –1) 2. 3 units right (1, 5) For each.
A coordinate grid showing Time in hours on the x-axis and Distance from Start in miles. A line plotted passing through the 2 points at (0, 0) and (3, 180).
Abigail drives at an average speed of 60 miles per hour for 3 hours. The graph shows her distance versus time. Which statements are true? Check all that apply.
As Abigail’s time increases, her distance increases.
As Abigail’s time increases, her distance decreases.
At 2 hours, Abigail has traveled 120 miles.
At 1.5 hours, Abigail has traveled 100 miles.
At 3 hours, Abigail has traveled 180 miles.
Answer: 1,3, and 5
1.) As Abigail’s time increases, her distance increases.
3.) At 2 hours, Abigail has traveled 120 miles.
5.) At 3 hours, Abigail has traveled 180 miles.
Step-by-step explanation: i hope this helps :)
A, C, E
As Abigail’s time increases, her distance increases.
At 2 hours, Abigail has traveled 120 miles.
At 3 hours, Abigail has traveled 180 miles.
Step-by-step explanation:peep the attachment
What is the equation of the line parallel to y = -5x + 6 and passes through the point (6,-8)?
Answer:
y = -5x + 22 is the equation of our parallel line
Step-by-step explanation:
remember a parallel line will have the same slope.
So let's begin by using the equation above and substituting the points.
[tex]y = - 5x + b \\ - 8 = - 5(6) + b \\ - 8 = - 30 + b \\ 30 - 8 = b \\ b = 22[/tex]
therefore our parallel line would be
[tex]y = - 5x + 22[/tex]
7x-y=7 find y intercepts
x- 0, 1, 2, 3, 4
y-
help me asap I have 5min to send it in plss
Answer
A) Morning: 2:45am. / afternoon: 2:45pm
B) Morning: 6:05am / afternoon: 6:05pm
c) Morning: 9:15am. / afternoon: 9:15pm
d) Morning: 11:35am. / afternoon: 11:35pm
Step-by-step explanation:
please answer, it’s a test
Answer:
A
Step-by-step explanation:
The inverse of 2x would be 1/2 x and the inverse of +6 would be -6.
How many times as great is 4 x 106 compared to 8 x 103
PLEASE HURRY AND ANSWER KIND OF IN A RUSH HERE
The number of times [tex] 4 \times 10^{6} [/tex] is greater than [tex] 8 \times 10^{3} [/tex] obtained using the division operation is 500 times
Given ::
Numerator = [tex] 4 \times 10^{6} [/tex] Denominator = [tex] 8 \times 10^{3} [/tex]Using the principle of indices :
[tex] (4 \times 10^{6}) \div (8 \times 10^{3}) = 0.5 \times 10^{(6-3)} = 0.5 \times 10^{3} = 500 [/tex]Therefore, [tex] 4 \times 10^{6} [/tex] is 500 tones greater than [tex] 48 \times 10^{3} [/tex]
Learn more : https://brainly.com/question/18360970
Mathew goes to the movies over the weekend
with four of his friends. The total bill for the
tickets and snacks came out to be $92.50. If they
all decided to split the bill evenly, how much
money did each person pay?
I need help
Answer:
23.125$
Step-by-step explanation:
you have to divide the total amount of money by the total amount of people 92.50$/4=23.125$
Determine the constant of proportionality (k) represented in the graph below
Answer:
k = 2
Step-by-step explanation:
y = kx
4 = 2k
k = 2 (slope)
Miguel has a smart phone data plan that costs $45 per month that includes 10 GB of
data, but will charge an extra $20 per GB over the included amount. How much
would Miguel have to pay in a month where he used 3 GB over the limit? How much
would Miguel have to pay in a month where he used went over by x GB?
Answer:
well for th first part 105
Step-by-step explanation:
20x3=60=45-105
[tex]200+300+1000[/tex]
Answer:
200 + 300 + 1000 = 1,500
Step-by-step explanation:
pls brainliest plss :<
which point is on the graph of f(x) = 2 * 5^x
Answer:
4,8
Step-by-step explanation:
Trust me
find the vaalue of x 3x+ y+ 2z= -10 x+5y+2y+2z= -12 -2x+3y= -1
x+7y+2z=−12
I'm not 100% sure though
at which point does the line y=2-x intersect the circle (x-3)^2+y^2=25
Answer:
Step-by-step explanation:
(6,-1) and (3,4)
EEEE
Using the line of random numbers to run one simulation,
what proportion of students tried out for a sport?
O 0.40
A study reported that about 40% of high school students
have tried out for a sport at their school. To find out if this
applies to Jessica's school, she surveyed an SRS of 20
students. Nine of them said that they had tried out for a
sport. To see if this result is surprising, a simulation is to
be conducted to estimate the probability of obtaining a
sample result as high as this one.
Let 0-3 represent students who tried out for a sport and
4-9 represent students who did not try out for a sport.
O 0.45
O 0.50
O 0.60
52644
52348
82462
66233
Answer:
pretty sure its .4
Step-by-step explanation:
52644
52348
82462
66233
2 2 3 2 2 2 3 3 being the # of people trying out so
8/total #of people (20) =.4
Using the line of random numbers to run one simulation, the proportion of students that tried out for a sport is .4
Calculation and Parameters:Given that 40% of students tried out for a sport in a school
The survey is an SRS of 20 students.
Hence, to find the proportion of students that tried out for a sport with the use of a line of random numbers would be:
52644523488246266233Where # is the number of people trying out is 8
2 2 3 2 2 2 3 3
Therefore,
8/total #of people (20)
=.4
Read more about data simulation here:
https://brainly.com/question/9525414
Help ASAP
22.41 + 8.9
Answer:
22.41 + 8.9= 31.31
hope this helps <3
How can I find 75% of any number?
Answer:
75% can be converted into a decimal, any percentage can.
Once converted, 75% is actually .75
At this point you can move the decimal place two place up, and put it over 100, in a fractal form
75/100
You can then simplify this to
3/4
You can then use this fraction as a conversion factor with any number, for example if we took the number 8
8∗3/4
2∗3/1=6
guys pls help me!!!!!!
Answer:
17 degrees
Step-by-step explanation:
x would be roughly 15
so sorry if incorrect
What is the missing value?
Answer:
The second one is 33
The first one is 17
Step-by-step explanation:
For the first one your just adding three the second one your just adding 8
PLEASE HELP QUICK! 50 POINTS IF YOU HELP!!
I WILL GIVE PERSON BRAINLY IF THEY GET IT RIGHT!!!
match the equations of the lines with their graphs.
Answer:
Assuming the graphs are abcd, 1 is b, 2 is c, 3 is a, and 4 is d.
Step-by-step explanation:
Write the equation of the line that passes through the given point and is perpendicular to the given line
please explain if you can, but if you dont want to its okay
Answer:
y = 5Step-by-step explanation:
The line x = 3 is parallel to y- axis, the perpendicular line is going to be parallel to x- axis and will have an equation:
y = aSince it passes through the point (-2, 5), it will have a = 5:
y = 5 is the line we needplease i need ASAPPPPP ILL GIVE BRAINLIEST!!!!
Hans baked 51 cookles. His family ate m of them. Using m, write an expression for the number of cookles that remained. + ローロ ロメロ
Answer:
[tex]51-m=n[/tex]
Step-by-step explanation:
M - Number of cookies his family ate
N - The remaining number of cookies left
For brainily please help :/
Answer: no
Step-by-step explanation: triangle inequality theory.
2.8+3.5 is not larger than 6.9 so this cannot be the sides of a triangle.
Please help me thanks
Answer:
5. 26⁰F, rise
6. 0, Added both the numbers instead of subtracting
7. 10⁰C
8. 25⁰F
9. 13⁰F
10. -4
Donald bought 3 shirts for $45. How many shirts can Donald buy if he has $30? Show your work using mathematics.
Answer:
donald can buy 2
Step-by-step explanation:
price of a shirt = $45÷3
=15
=30÷2=15
Answer:2 shirts
Step-by-step explanation: if you divide 45$ by three you find out each shirt cost 15$ if you add fifteen twice you get 30$ theirfor you used all your money and can not buy another shirt.
put 5.04, 5.069, 5.4, and 5.64
Answer:21.149
Step-by-step explanation:If you add them all together you get 21.149 5x4 =20 so add the decimals last then add 20 when you add .04+.069 then add .4+.64 then add the answers and get 21.149.