Answer:
x² - 100
Step-by-step explanation:
Use the FOIL method. The FOIL method is the way in which you multiply the terms:
FOIL stands for First, Outside, Inside, Last. Multiply:
First:
x * x = x²
Outside:
x * 10 = 10x
Inside:
-10 * x = -10x
Last:
-10 * 10 = -100
Combine like terms:
x² + 10x - 10x - 100
x² + (10x - 10x) - 100
x² - 100
x² - 100 is your answer.
~
Answer:
x^2-100
Step-by-step explanation:
Use the F.O.I.L method
x^2+100x-100x-100
is -9/3 a rational number
Answer:
no
Step-by-step explanation:
Answer: Yes
Step-by-step explanation: The rational numbers include all positive numbers, negative numbers, and zero that can be written as a ratio (fraction) of one number over another. Whole numbers, integers, fractions, terminating decimals, and repeating decimals are all rational numbers.
Lisa and her date spent $87.70. They want to leave a 20% tip. What amount would be reasonable for the tip?
Answer:
17.54 would be tip so reasonable would be 20$
Step-by-step explanation:
100 POINTS!!!!!!!!!!! ( I NEED FAST ANSWERS ) The slope of the line through the points (8,4) and (6.5) is 2.*
False
True
Answer:
False
Step-by-step explanation:
The slope of that line is -1/2
False
The slope of the line is actually -.05
I would have explained this further but u need it fast so..
Suppose that you plan on taking a dimmer job selling magazine subscriptions. The magazine company will pay you $1.25 for selling the first subscription. For each additional subscription sold, the magazine company will pay you 5 cents more than what was paid for the previous subscription. How much will you earn by selling 225 magazine subscriptions?
Answer:
$1243.75
Step-by-step explanation:
Hope it helps :)
Brainliest pls? Have a good day/night
A turtle traveled
1/10 miles in 1/2 hour. What was the turtle's rate in miles per hour?
A: 1/20
B: 1/12
C: 1/6
D: 1/5
The turtle's rate in miles per hour is 1/5 miles/hr.
What are algebraic expressions?In mathematics, an expression or mathematical expression is a finite combination of symbols that is well-formed according to rules that depend on the context.Mathematical symbols can designate numbers (constants), variables, operations, functions, brackets, punctuation, and grouping to help determine order of operations and other aspects of logical syntax.Given is that a turtle traveled 1/10 miles in 1/2 hour.
Rate is defined as the distance travelled in a unit hour {1 hour}.{R} = x/t.We can write the rate as -
{R} = (1/10)/(1/2)
{R} = (1/10) x 2
{R} = 1/5 miles/hr
Therefore, the turtle's rate in miles per hour is 1/5 miles/hr.
To solve more questions on algebraic expressions, visit the link below -
brainly.com/question/1041084
#SPJ2
the table shows ordered peirs of the function y= 8 - 2x what is the value of y when x = 8
Answer:
y = -8
Step-by-step explanation:
All we need to is substitute for x and solve for y.
y = 8 - 2x
y = 8 - 2(8)
y = 8 - 16
y = -8
Best of Luck!
What is the value of n?
What is the value of n?
Answer:
42
Step-by-step explanation:
You get 42 by looking at the denominators 7 and 21. You times by 3 to get from 7 to 21, so you times 14 by 3 to get n, which is 42.
Answer:
42
Step-by-step explanation:
On the bottom 7 was multiplied by 3 so you would do the same to 14.
Identify the slope and y-intercept from the following equation.
Answer:
The slope is 2/5 and the y intercept is -4
Step-by-step explanation:
The slope is always the coefficient to x
Answer:
slope = [tex]\frac{2}{5}[/tex] , y- intercept = - 4
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
y = [tex]\frac{2}{5}[/tex] x - 4 ← is in slope- intercept form
with slope m = [tex]\frac{2}{5}[/tex] and y- intercept c = - 4
What is the answer to this?
Answer:
C
High Hopes^^
Barry-
Which is the graph of the line LaTeX: y-2=3\left(x-1\right)y − 2 = 3 ( x − 1 )?
Answer:
D.
Step-by-step explanation:
The equation given takes the point-slope form which is, [tex] y - b = m(x - a) [/tex]. Where,
(a, b) = (x, y) coordinates of a point on the line.
m = slope of the line .
To find which graph has a line equation of [tex] y - 2 = 3(x - 1) [/tex], look for the points which will give you something almost exactly as the equation if you substitute their values into [tex] y - b = m(x - a) [/tex].
Let's consider option D.
We have a given point (1, 2). a = 1, b = 2.
Substitute these into [tex] y - b = m(x - a) [/tex]
We have:
[tex] y - (2) = m(x - (1)) [/tex]
[tex] y - 2 = m(x - 1) [/tex]
As you can see, this looks almost exactly as
[tex] y - 2 = 3(x - 1) [/tex].
If you want to be certain that option D is the answer, find m by using the coordinates of any other point on the line and plug into [tex] y - 2 = m(x - 1) [/tex] to find m:
In graph D, let's take the points (0, -1)
[tex] -1 - 2 = m(0 - 1) [/tex]
[tex] -3 = m(-1) [/tex]
[tex] -3 = -m [/tex]
Divide both sides by -1
3 = m
m = 3.
Therefore, option D is the graph of the line [tex] y - 2 = 3(x - 1) [/tex].
What is the coefficient
Answer:
5, the one with the variable.
is the coeficiant
Step-by-step explanation:
Answer:
5
Step-by-step explanation:
The coefficient is always before the variable. It's always going to be a number.
round to the tenth. i need the answer plss
Answer: D
Step-by-step explanation:
Answer:
C=6.4ft
Step-by-step explanation:
a^2 + b^2 = c^2
4^2 + 5^2 = c^2
4 + 4 = 16
5 + 5 = 25
16 + 25 = c^2
41 = c^2
Now you will need to find the square root of 41 which gives you 6.40 and you just round to nearest tenth..
HOPE THIS HELPS!!
how do you solve this pls help!!!
Answer:
y = 1
x = -0.75
Step-by-step explanation:
The alternate angles theorem states that if two parallel lines are cut by a transversal, then each pair of alternate interior angles are equal.
21y - 1 = 4x + 23
21y - 24 = 4x
5.25y - 6 = x
21y - 1 = 4x + 23
21y = 4x + 24
y = 4/21(5.25 - 6) + 1.14
y = 1 - 1.14 + 1.14
y = 1
5.25(1) - 6 = x
-0.75 = x
HELP!! This is for my math, Picture added.
Answer:
x=3, x=[tex]-\frac{5}{2}[/tex]
Step-by-step explanation:
2x^2-x-15=0
2 times -15 equals -30, so plug in 5x and -6x for -x
2x^2-6x+5x-15 factor,
2x(x-3) 5(x-3)
x-3=0 2x-5=0
x=3 x= -5/2
Does anyone know this?
Answer:
obtuse scalene
Step-by-step explanation:
Answer:
Obtuse Scalene
Step-by-step explanation:
all the sides have different numbers
What is the unit rate for meters per second if a car travels 374 meters in 17 seconds?
Answer:
22 meters per second.
Step-by-step explanation:
374 divided by 17 = 22.
Answer:
22
374meters. 17
(/). divided by (/)
17seconds 17
Equals 22 meters per second
Step-by-step explanation:
hope this helps and if ur feeling genous mark brainliest
What is the slope of the line represented by the equation 3x+4y= 1/2? –4/3 –3/4 3/4 4/3.
Answer:
-3/4 is the slope
Step-by-step explanation:
3x + 4y = 1/2
4y = -3x + 1/2
y = -3/4x + 0.125
m = -3/4
A dealer paid kshs 240,000 to an agent as commission for sale of a car .The commission was 3 percent of the car price how much money did the dealer remain with from the sale of the car if he also had to pay the government v.A.T at 16 percent of the total car
Answer:
kshs 6,480,000
Step-by-step explanation:
Since, kshs 240,000 represent the 3% of the car price, you can use a rule of three to calculate the amount that represents 100%:
240,000 → 3%
x → 100%
x=(240,000*100)/3
x=8,000,000
So, the price of the car is kshs 8,000,000 and you can calculate the 16% of this, to find the amount that the dealer had to pay as government V.A.T:
8,000,000*16%=1.280.000
Now, you can subtract the comission and the government VAT from the car price:
8,000,000-240,000-1,280,000=6,480,000
According to this, the answer is that the dealer remained with kshs 6,480,000 from the sale of the car.
what is the opposite of −(−6.3)
Answer:
the reicprocal is -1/6.3
Step-by-step explanation:
The product of two consecutive integers is 19 less than their sum.
What equation represents the statement above?
Answer:
is there any choices?
Step-by-step explanation:
Write 2 and two-thirds as an improper fraction?
Answer:
2 2/3
Step-by-step explanation:
What is y=3x+13 in standard form?
Answer:
3 x − y = − 13
Step-by-step explanation:
Any equation that relates the first power of x to the first power of y produces a straight line on an x-y graph. The standard form of such an equation is Ax + By + C = 0 or Ax + By = C. When you rearrange this equation to get y by itself on the left side, it takes the form y = mx +b. This is called slope intercept form because m is equal to the slope of the line, and b is the value of y when x = 0, which makes it the y-intercept. Converting from slope intercept form to standard form takes little more than basic arithmetic.
TLDR:
To convert from slope intercept form y = mx + b to standard form Ax + By + C = 0, let m = A/B, collect all terms on the left side of the equation and multiply by the denominator B to get rid of the fraction.
Answer:
3x - y = -13
Step-by-step explanation:
y = mx + b
(This is the slope intercept form)
We want to change it to standard form, which is:
Ax + By = C
We want to rearrange as many of the numbers as we can, without actually changing the problem!
Ax = 3x
By = y
C = 13
So we must move the numbers from one side to another.
Whatever you do to one side, you do to the other.
y = 3x + 13
-3x + y = -3x - y
--------------------
-3x + y = 13
Since we can't have our "Ax" as a negative multiply everything by -1
-1[-3x + y = 13]
3x - y = -13
That is your answer.
Use the table here to answer the questions below.
1) Explain what Pablo did in each step of his work.
2) Explain what Karla did in each step of his work.
3) Are Pablo and Karla correct?
Please help due today!!
Answer:
Pablo Used the Commutative property to Reorder the terms. Pablo then Combined all his like terms. Pablo then Divided 21 by 3x to get 3(7+x). Pablo then subtracted 7 from 13. He got x = 6
Pablo did his math wrong.
Karla Did her work correctly. Karla used the commutative property to reorder the terms. She then combined her like terms. She subtracted 21 from itself and 39, leaving 3x and 18 on different sides of the equal sign. She divided 3x by 3 which equals x and 18 by 3 which equals Karla is correct.
Step-by-step explanation:
what is equivalent to sq root -27
[tex]\sqrt{-27}=\sqrt{27}\sqrt{-1}=\boxed{3\sqrt{3}i}[/tex].
Result is a complex irrational number.
Hope this helps.
the amount of money rachel earns varies directly with the number of hours she works. if sue earns $600 when she works 40 hours , how much will she earn for working 85 hours ?
Answer:
I think 500
Step-by-step explanation:
600 minus 40 mminus 85
Find the variables.
(x - 10)
104°
X=I
Answer: 114 Degrees
Step-by-step explanation: Add 10 to 104 and there is X and I is equivalent to X.
What is five times 3 and 3/4
Answer:
18.75
Step-by-step explanation:
I KNOW ITS RIGHT LOL HOPE THIS HELPED
HURRY LOTS OF POINTS!!
Answer:
they are going to half to sell 100 tickets. 5 times 100 is 500
Step-by-step explanation:
pls make me brainliest
Answer:
500
Step-by-step explanation:
Which of the diagrams below represent a function from X to Y
Answer:
d
Step-by-step explanation:
because it is a one to one relation
The answer is d., its the only one that isnt x to 2 y's or y to 2 x's
How do I do this I tried and still don’t get it
Answer:
y=0
y=2
y=4
y=6
y=8
next your y's is
0
1
2
3
4
Your x,y is
0,0
1,2
2,4
3,6
4,8
Explanation
So for each X you must multiply by 2
to find your Y