(
−
9
)
(
+
2
)
(
+
2
)
−
9
(
+
2
)
Answer:
x squared - 7x -18
Step-by-step explanation:
x * x = x^2
x * 2 = 2x
-9 * x = -9x
-9 * 2= -18
x^2-7x-18
How do you find a slope and the Y intercept
How to find slope:
Divide the difference of the y-coordinates of 2 points on a line by the difference of the x-coordinates of those same 2 points.
The actual formula for this is: (y2 - y1)/(x2 - x1).
How to find Y intercept
To find the y-intercept, plug 0 in for 'x' and solve for 'y'.
Ex. 2x + 3y = 12
So you plug in 0 for x therefore it becomes:
3y = 12
so, the y intercept is 4
Let me know if this is helpful :)
The sum or three consecutive odd numbers is 51. Find the numbers
Answer:
let the three no. be x, x+2, x+4
so, x+x+2+x+4= 51
3x+6= 51
3x=45
x=15
hence the required numbers are
x=15
x+2= 17
x+4=19
The Wilson Student Government sold $ 126 worth of tickets for a talent show in 3 hours. How many tickets did they sell in one hour?
Answer:
Step-by-step explanation:
They sold $42 worth of tickets in one hour. Need more information to determine the number of tickets.
The Wilson Student Government sold $42 worth of tickets in one hour. Total amount of money earned from ticket sales = $126
Number of hours during which the tickets were sold = 3 hours
Step 1: Divide the total amount of money earned by the number of hours to find the average ticket sales per hour.
Tickets sold in one hour = Total amount of money / Number of hours
Tickets sold in one hour = $126 / 3
Step 2: Perform the division.
Tickets sold in one hour = $42
So, the Wilson Student Government sold $42 worth of tickets in one hour. This means that on average, they were making $42 per hour during the three-hour period of selling tickets for the talent show.
To know more about tickets:
https://brainly.com/question/23246243
#SPJ2
The present age of the father and his son is 32 years and 7 years respectively.
7
Find how many years ago the product of their age was 116.
product of the present age of their
Answer:
ok so im so confused but like you know i tried and i got this:
X years ago, the father’s age and the son’s age would be (32 - x) and (7 - x) years old.
(32 - x)(7 - x) = 116
(x - 32)(x - 7) = 116
x^2 - 39x + 224 = 116
x^2 - 39x + 108 = 0
(x - 3)(x - 36) = 0
x = 3, 36
But (32 - x) > 0, so x does not equal to 36.
x = 3
3 years ago, the father would be 29 years old, and the son 4 years old.
i know it sounds crazy but i think its wrong lol
Find the degree of the monomial. -4/9
Answer:
(=3+2) .
Step-by-step explanation:
The degree of a monomial is the sum of the exponents of all its variables. Example 1: The degree of the monomial 7y3z2 is 5(=3+2) .
someone help please!
Answer:
BC ≈ 14.7 m
Step-by-step explanation:
Using the Sine rule in Δ ABC
[tex]\frac{AB}{sinC}[/tex] = [tex]\frac{BC}{sinA}[/tex]
To find ∠ A subtract the 2 given angles from 180°
∠ A = 180° - (90 + 28)° = 180° - 118° = 62°
Then
[tex]\frac{7.8}{sin28}[/tex] = [tex]\frac{BC}{sin62}[/tex] ( cross- multiply )
BC × sin28° = 7.8 × sin62° ( divide both sides by sin28° )
BC = [tex]\frac{7.8sin62}{sin28}[/tex] ≈ 14.7 m ( to 3 significant figures )
PLEASE FOR BRAINLIEST!! which statements describe one of the transformations performed on f(x)=x^2 to create g(x)=(x-2)^2+5? choose all that apply.
Answer:
A translation of 5 units up
and
A translation of 2 units to the right
Step-by-step explanation:
Follooww me on iiii---nnnn---sss--tttt--aa---ggg--rrr--aaa---mmm-
i-n--s-t-a-g-r--a==m
Stewart.lil2-----
Answer:
ok sure
Step-by-step explanation:
Use the information given to enter an equation in standard form.
(9, 10) and (8, 7) are on the line.
Answer:
The equation in the standard form of the line through the given points is;
y = 3x - 17
Step-by-step explanation:
We start by getting the slope of the line;
m = (y2-y1)/(x2-x1)
m = (7-10)/(8-9) = -3/-1 = 3
The stands equation form is;
y = mx + b
m is slope, b is the y-intercept
so we have
y = 3x + b
To get b, we substitute the coordinates of any of the points
10 = 3(9) + b
10 = 27 + b
b = 10-27
b = -17
So the equation is;
y = 3x - 17
A window in the shape of a parallelogram has the dimensions given.
What is the area of this window?
20 ft²
24 ft²
28 ft²
40 ft²
i'll give brainlyist
Answer:
The answer is c, 28 ft! brainliest pls lol
Answer:
20ft
Step-by-step explanation:
I did the quiz and got it right :> (K12)
The sum of two numbers is 38. The larger number is 8 more than the smaller number, What are the numbers?
Larger number:
Smaller number.
Answer:
Larger number: 23
Smaller number. 15
Step-by-step explanation:
y = x - 8
x + y = 38
substitute for y:
x + x - 8 = 38
2x = 46
x = 23
y = 15
Answer: Larger number: 23
Smaller number: 15
Step-by-step explanation:
let x be the smaller number, then the larger number would be x+8
x + (x + 8) = 38
2x + 8 = 38
2x = 30
x = 15
larger number = x + 8 = 15 + 8 = 23
there are 40 students on a swim team.The coach needs to rent vans to take the team to a swimming competition.Each van can take 6 swimmers. how many vans will the coach need for 40 students.
Answer:
They will need 7 vans.
Answer:
The answer is 7 vans
Step-by-step explanation:
Divide 40/6
you get 6.6 so you just round up to 7.
The 7th bus will have less passengers but that is how many you will need for everyone to fit
Hope that helps
XZW XYV find the perimeter of XZW?
PLS HELP
9514 1404 393
Answer:
180 units
Step-by-step explanation:
The perimeter of ∆XYV is ...
Pxyv = XY +YV +VX
Pxyv = 29 +31 +40 = 100
The triangles are similar, so the scale factor from ∆XYV to ∆XZW applies to the perimeter. That scale factor is ...
WX/VX = (32+40)/40 = 1.8
Then ...
Pxzw = 1.8 × Pxyv = 1.8 × 100
Pxzw = 180 . . . units
Pls help I gat no idea on what the answer is
Answer:
the answer is A
Step-by-step explanation:
hope it helped
A concession stand sells smoothies. At the end of the day they had sold 14 strawberry,
18 banana, 8 grape, and 6 orange. Tell which ratio is greater, strawberry to orange or
banana to grape.
A. Banana to grape
B. Strawberry to orange
Answer:
A. Banana to grape this should be right
Rearrange x=3g+2 to make g the subject
Step-by-step explanation:
Given
x = 3g + 2
Making g as a subject then
3g = x - 2
g = ( x - 2 ) / 3
Hope it will help :)❤
Answer:
g=(x-2)/3
Step-by-step explanation:
Please give me the correct answer.Only answer if you're very good at math.
Answer:
45m - 900 = 90m
Answer:
First box 45, second box 900, third box 90
Step-by-step explanation:
0.45 x 100 = 45
9 x 100 = 900
0.9 x 100 = 90
what is the product of (1.9*10^-3)(2*10^4)
Answer:
to solve use the distributive property and multiply
Step-by-step explanation:
I'm sorry I do not have the product
please help with maths !
Answer:
4.91
Step-by-step explanation:
trying to find adjacent, you know the angle and hypotenuse, so use the CAH equation
cos(51) x 7.8 = 4.91 (3 s.f.)
Answer:
use Pythagoras theorem for this question because this is a right angled triangle
an airplane takes off at an angle of elevation of 23 degrees when it has traveled 800 ft horizontally how many feet has it traveled
Answer:
Step-by-step explanation:
Find the missing length of the triangle 12 in and 35 in.
Answer:
37
Step-by-step explanation:
The answer is 37 I tried it and its right
expand and simplify 5(2-1)+2(3x-6)
Answer:
6x-7
Step-by-step explanation:
Answer:
[tex]6x - 7[/tex]
Step-by-step explanation:
1) Simplify 2-1 to 1.
[tex]5 \times 1 + 2(3x - 6)[/tex]
2) Simplify 5 × 1 to 5.
[tex]5 + 2(3x - 6)[/tex]
3) Expand by distributing terms
[tex]5 + 6x - 12[/tex]
4) Collect like terms.
[tex]6x + (5 - 12)[/tex]
5) Simplify.
[tex]6x - 7[/tex]
So, therefor, the answer is 6x - 7.
Will give brainliest
HURRY HELP i need helppp
Answer:
that answe is b
Step-by-step explanation:
b because i took this test
plz help this is so hard
Answer:
Johnny bought 3 boxes of pies. For each pie, he ate 7/8 of the pie. How much pie did Johnny eat?
The answer will be 2 5/8 or 21/8 pies
Step-by-step explanation:
Hope this Helped
Rewrite the following expression using exponents
1/16
Answer:
6.25 * 10^-2
Step-by-step explanation:
hmmmmmmmmm
RECREATION An instructor at a swimming pool asked her students if they would be interested in a n advanced swimming course, and 60% stated that they would. Is the sample method valid? If so, suppose there are 870 pool members. How many peoplecan theinstructorexpecttotakethecourse?
How can you determine the number of solutions of a system of linear equations by inspecting its equations?
Step-by-step explanation:
To find - How can you determine the number of solutions of a system
of linear equations by inspecting its equations?
Proof -
There exists three types of solution for a system of linear equations.
1. No solution.
2. Unique solution.
3. Infinite many solutions.
Now,
Let the 2 linear equations are as follows :
y = ax + b
y = cx + d
1. For no solution -
a = c and b ≠d
For example-
y = -2x + 5
y = -2x - 1
Subtract first equation from second , we get
y - y = -2x - 1 - ( -2x + 5)
⇒0 = -2x - 1 + 2x - 5
⇒0 = -6
Not possible
So, There exist no solution.
2. For unique solution -
a ≠ c and b , d can be any value
For example -
If b and d are same ,
y = 2x - 4
y = -3x - 4
Subtract equation 1st from 2nd , we get
y - y = -3x - 4 - ( 2x - 4)
⇒0 = -3x - 4 - 2x + 4
⇒0 = -5x
⇒x = 0
⇒y = 2(0) - 4 = -4
∴ we get
x = 0, y = -4
If b and d are different
y = 2x - 4
y = -3x + 5
Subtract equation 1st from second
y - y = -3x + 5 - 2x + 4
⇒0 = -5x + 9
⇒-5x = -9
⇒x = [tex]\frac{9}{5}[/tex]
⇒y =2([tex]\frac{9}{5}[/tex]) - 4 = [tex]\frac{18}{5} - 4 = \frac{18 - 20}{5} = -\frac{2}{5}[/tex]
∴ we get
x = [tex]\frac{9}{5}[/tex] , y = [tex]-\frac{2}{5}[/tex]
3. Infinitely many solution -
a = c and b = d
For example -
y = -4x + 1
y = -4x + 1
Subtract equation first from equation second
y - y = -4x + 1 - ( -4x + 1)
⇒0 = -4x + 1 + 4x - 1
⇒0 = 0
Satisfied
So, Infinite many solution possible.
Just a random question for points.
Would you rather get a 21/50 or a 23/33
Do the math and see where the decimals take you, then answer.
Answer:
0.42
Explanation:
21/50= 0.42
22/33=0.667766,7
Therefore, 0.42 is the less equaled answer
Please give A 5.0 score and braniest!
Hopefully this helps!❤
if a point a device line segment a b of length 10 centimetre internally In the ratio 2:3 then find the length of a d
Given:
Consider a point d divides line segment ab of length 10 centimetre internally in the ratio 2:3.
To find:
The length of ad.
Solution:
If a point d divides line segment ab internally in the ratio 2:3, then the length of ad and db are 2x and 3x receptively.
We know that,
[tex]ab=ad+db[/tex]
Length of the segment ab is 10 cm.
[tex]10=2x+3x[/tex]
[tex]10=5x[/tex]
Divide both sides by 5.
[tex]2=x[/tex]
Now,
[tex]ad=2x[/tex]
[tex]ad=2(2)[/tex]
[tex]ad=4[/tex]
Therefore, the length of segment ad is 4 centimetres.