Yeah, I know Alex sucks. SO slope is the change in Y over x. So to find slope for ex. is lets use points (8,4) and (6,5) the equation to find slope is Y2-Y1 over X2-X1 or Y2-Y1 / X2-X1 and that basically the y's on the points you have. In this case it will be 4 and 5 since y always comes second or after the x. What I like to do is this X1(8), Y1(4) and X2(6), Y2(5). After you have that set up you just put them in the equation it will be 5-4/6-8 which is -1/2 use calculator. So Y is the y-axis and X is the x-axis.
Function is when every input(x) has only one output(y) . For example if we have the table
X,1 , 4 , 5, 9, 10 this is not a function because the -3 has both 9 and 10 for an output.
Y,2, 6 ,6, -3 , -3
A function will look more like this
1 2 3 4 5 6
2 4 6 8 10 12 every output has only one input
I recommend to watch Brian McLogan on youtu he can really help. Just search anything then his name. Or even Function then his name he explains it really well.
Three pounds of bananas weigh $1.89. How much is it for 5 lbs of bananas
Answer:
The correct answer is $3.15
Step-by-step explanation:
To find the answer you do $1.89 divided by 3 to find the unit rate,which is 63 cents. Then you do 5 times 63 cents to equal $3.15.
HAVE A GOOD DAY!
solving systems equations: substitution
y=6x+5
y=4x+5
Answer:
y=6x+5 →equation 1
y=4x+5 → equation 2
you can either substitute equation 1 in 2 or equation 2 in 1
substituting equation 1 in 2,
y = 4x + 5
6x + 5 = 4x + 5
6x - 4x = 5 - 5
2x = 0
x = 0/2
x = 0
substituting x = 0 in equation 1, (to get y)
y = 6x + 5
y = 6(0) + 5
y = 0 + 5
y = 5
hope it helps you!!
Consider vectors u and v, where u = (1, -1) and v = (1, 1). What is the measure of the angle between the vectors?
Answer:
I believe the answer is C. 90 degrees
Step-by-step explanation:
First you find the lengths of the two vectors, which are both [tex]\sqrt{2}[/tex]. Then you find the angle given the cos using: cos(∅)=[tex]\frac{u*v}{|u|*|v|}[/tex] = [tex]\frac{0}{\sqrt{2}*\sqrt{2} }[/tex] = 0. Then using ∅=acos(0)=[tex]\frac{\pi }{2}[/tex] = 90°
Answer:
c
Step-by-step explanation:
edge
Solve for x
2(X-5) +6=7(X-1)-2 (x -6)
Answer:
x = - 3
Step-by-step explanation:
2x - 10 + 6 = 7x - 7 - 2x + 12
2x - 4 = 5x + 5
- 5 - 4 = 5x - 2x
-9 = 3x
x = - 9/3
x = - 3
58 x 64 is the same as:
(64 x 50) + (64 x )
What number goes in the space?
help please
Anna and Elsa are helping set up for the Christmas celebration at Magic Kingdom. They have to install 7 million lights for the annual display. It takes Elsa 14 days to set up the 7 million lights by herself and it takes Anna 11 days to set up the 7 million lights by herself. How long will it take them to do it together?
Answer:
If they work together, they will take 6.16 days.
Step-by-step explanation:
Elsa takes 14 days to complete the work.
So, 1 day work by Elsa is [tex]\frac{1}{14}[/tex]
Anna takes 11 days to complete the work.
So, 1 day work by Anna is [tex]\frac{1}{11}[/tex].
So, Let if they work together, it would take x number of days.
So, we can set up equation as
[tex]\frac{1}{14} +\frac{1}{11}=\frac{1}{x}[/tex]
Find LCD, which is 154.
[tex]\frac{11}{154} +\frac{14}{154} =\frac{1}{x}[/tex]
Simplify
[tex]\frac{25}{154} =\frac{1}{x}[/tex]
Cross multiply,
25x=154
Divide both sides by 25
x=6.16 days
If they work together, they will take 6.16 days.
i don’t understand :(
Answer:
The quotient when [tex]x^3-4x^2-8x+8[/tex] is divided by [tex]x+2[/tex] is [tex]x^2-6x+4[/tex] with no remainder, so x+2 is a factor of p(x).
Step-by-step explanation:
As the question suggests, there are two ways to solve this problem: long division (which can always be used to divide polynomials), and synthetic division (which can only be used when you are dividing by something of the form [tex](x-a)[/tex]. In this case, we may use synthetic division, since [tex]x+2[/tex] is equal to [tex]x-(-2)[/tex]. I will use synthetic division here as it is slightly faster than long division.
The -2 on the left represents that we are dividing by x-(-2), and the rest of the numbers in the top row are the coefficients of p(x): 1, -4, -8, and 8.
The first step in synthetic division is to being down the leading coefficient of the polynomial: in this case, the 1 (as indicated in red). Now, we multiply the 1 by -2. We get -2, which we place directly below the -4.
Next, we add directly down the column, (-4 + (-2) is equal to -6), and this answer is placed in the box below. We can continue this process, getting the coefficients 1, -6, 4, and 0 in the bottom row.
This is the answer: the quotient is [tex]x^2-6x+4[/tex], and the remainder is zero (which indicates that x+2 is a factor of p(x)).
--
Edit: long division
We may also solve this problem using long division (see the second image). The first step is to look at the leading coefficients: since [tex]x \times x^2[/tex] is equal to [tex]x^3[/tex], the first term in the quotient will be [tex]x^2[/tex]. Since [tex]x^2 \times (x+2)[/tex] is equal to [tex]x^3+2x^2[/tex], we must now subtract that from [tex]x^3-4x^2-8x+8[/tex].
We repeat the same process, as shown in the image. Since we eventually get to zero, the remainder is zero, and the polynomial at the top (x^2-6x+4) is the quotient.
I know this might be difficult to follow, so please comment if you have any questions.
Mr. Weinstein gave his 4 children a total of $31.00 before they entered a video game arcade. If the children divided the money equally, how much money did each child get?
Answer:$7.75
Step-by-step explanation:
Solve the equation. Show work on scratch paper. 20=10+2(x−4)
Answer:
x = 9
Step-by-step explanation:
20 = 10 +2(x - 4)
10 + 2(x -4) = 20 {Use distributive property}
10 + 2x - 2*4 = 20
10 + 2x - 8 = 20 {add like terms}
2x + 2 = 20
2x = 20 - 2
2x = 18
x = 18/2
x = 9
What's the answer??
Answer:
The answer is -4/21
Step-by-step explanation:
ASAP
Solve the following equation by graphing each line below.
a) 2x+3=-x+9
b) Where do the two lines intersect? Write your answere in the form (x,y)
Answer:
x=2
Step-by-step explanation:
2x+x+3=9
2x+x=9-3
3x=9-3
3x=6
x=2
Answer:
a) 2x + 3 = -x + 9
or, 3x = 6
# x = 2 since there is no y in the equation the value of y could be 0.
b) it intersects at ( 2, 0 )
Step-by-step explanation:
Find the value of X 6-4x= -8x -8
Answer:
Fraction:
[tex]x=-\frac{7}{2}[/tex]
Decimal:
[tex]x=-3.5[/tex]
Step-by-step explanation:
Step-by-step on how to solve it is in the picture below.
Hope this helps! :)
Answer:
x= 7/6
Step-by-step explanation:
collect the like terms. so in this problem -4x and -8x are like terms.
you'll then have -12x = -8 - 6
calculate the difference of -8 and 6
you'll then have -12x = -14
you then divide the both sides by -12
getting the solution: x= 7/6
A Red Oak tree is estimated to grow
0.25
feet every year. According to this estimate, how long will it take, in years, for a Red Oak tree to grow by
15
feet?
Answer:
60 years
Step-by-step explanation:
Ahh i knew every single problem except this one ;)
Answer:
????
Step-by-step explanation:
Given that function f : x= mx + n, where m and n are constants and m> 0.
If f² : x = 64x - 36, find the values of m and n.
Answer:
yo no hablo english sorry
Step-by-step explanation:
A group of 5 friends ate lunch at a restaurant. The bill came to $42 and the friends agreed to split it equally. Which expression represents the number of dollars each person paid?
A.
42−5
B.
425
C.
5×42
D.
542
Answer:
c would be the right and its the best answer
Pls!!
If a cone has a volume of 47.1 cubic yards and a height of 5 yards, what is the radius of the cone? (Use 3.14 for x .)
1.5 yards
1.73 yards
3 yards
4.5 yards
does the point (1,4) satisfy the equation y=x
question is in the picture please show work
Answer:
D
Step-by-step explanation:
The m=3/4 when graph
Which expression is equivalent to 14 x 14?
14²
1414
Answer:
c
Step-by-step explanation:
2 is the exponent and 14 is the number so, its 14^2
14x14=14^2
Answer:
14²
Step-by-step explanation:hope this helps
14*14=196
14²=14*14=196
Can you help me solve this
THIS IS STATEMENT AND REASON PLSS HELP!
Answer:
Line FH is the same as FK
Step-by-step explanation:
The triangle on the left is the same on the right, but inverted. This is proved because lines eh equals gk and angle e and g are the same.
Answer:
line fh is the same as fk
HELP ASAP ILL GIVE BRAINIEST
Answer:
(1,-3)
Step-by-step explanation:
Answer:
x = 1
Step-by-step explanation:
the solution is where the two lines intersect. the point of intersection is (1,3). the x corrdinate in (1,3) is 1:)
2. Write the algebraic phrases that correspond to the following word phrases: (a) The sum of four times the opposite of a number and - 5 (b) The product of 5 and the sum of 3 times a number and 4
Answer:
would not be helpful to anser nowww... sory!
Step-by-step explanation:
On a trip, Miguel drives at an average speed of 55 miles per hour. After 2 hours, the odometer on his car reads 4583. Write an equation to represent the reading on the odometer m after h hours.
Answer:
[tex]m=4473-55h[/tex]
Step-by-step explanation:
Step one
Given data
speed= 55 miles per hour
time taken = 2 hours
Hence the distance covered is
from v=d/t
distance= velocity * time
distance= 55*2
distance= 110 miles
this means that the initial reading of the odometer is
=4583-110
=4473 miles
after h hours the distance covered will be
distance = 55*h
distance= 55h
the reading of the odometer m is
m= initial reading-distance
Hence the reading of the odometer m is expressed as
[tex]m=4473-55h[/tex]
Answer:
Correct
m=55h+4473
Step-by-step explanation:
i got it right :-)
ANSWER WHAT YOU CAN NEED THEM ASAP PLZ
Answer:
1. KJL=55 JLK=55 JKL=70
2. x=12 (you can just plug X in and get the angle measures they will all equal 180 alltogether)
3. x=2
4. x=7
5. 23 degrees
6. i dont remember how to do i sorry
7. 20
8. 45 degrees
9. i dont know
10. 120 degrees
11. cant see the picture
please help i’ll give brainliest please tysm :))
Answer:
130
Step-by-step explanation:
2/2 = 1
26/2 = 13
10 x 13 = 130
hope this helps plz mark me brainliest =)))))))
Answer: 130
Step-by-step explanation:
Ten is the half of 20
So it must be the same thing on the other side. So it is 130
Pls mark me brainliest
I’m doing a percent equation problem and the question is blank % of $50 =$35 help me plzzzz
Answer:
70
Step-by-step explanation:
blank % of $50 =$35
Let us take x in place of blank.
x % of $50 =$35
x/100 * 50 = 35
x/2 = 35
x = 35*2
x = 70
Therefore, 70% of $50 =$35
Whoever can answer the MOST with work show will ne marked brainliest.
Answer:
See the picture below
Step-by-step explanation:
Mrs. Carter's famous peanut butter cookies call for 1 cup of peanut butter for every 1 2 of a cup of oil. Today, she wants to make a huge batch with 1 cup of oil. How much peanut butter should she use?
Answer:
2 cups of peanut butter
Step-by-step explanation:
Mrs. Carter's famous peanut butter cookies call for 1 cup of peanut butter for every 1/2 of a cup of oil. Today, she wants to make a huge batch with 1 cup of oil. How much peanut butter should she use?
From the above question:
1/2 cup of oil = 1 cup of peanut butter
1 cup of oil = x
Cross Multiply
1/2x = 1 × 1
x = 1 ÷ 1/2
x = 1 × 2/1
x = 2 cups of peanut butter.
Therefore, for huge batch with 1 cup of oil, she should use 2 cups of peanut butter.