please help asap
factorise fully:
(x^2 -1)-(x-1)^2
Answers
Step-by-step explanation:
2x-2 I think it is the answer
Related Questions
Question 6 of 10
A triangle has sides measuring 8 inches and 12 inches. If x represents the
length in inches of the third side, which inequality gives the range of possible
values for X?
A. 8< x < 12
B. 4 < x < 20
C. 4 sxs 20
D. 8 sxs 12
SUBMIT
Answers
Answer:
the answer is b
Step-by-step explanation:
The possible inequality for x is 4 < x < 20.
The correct option is (B).
What is inequality?Inequality, A declaration of an order relationship between two numbers or algebraic expressions, such as greater than, greater than or equal to, less than, or less than or equal to. Either questions or theorems can be used to express inequality problems, and both can be solved using methods similar to those used to solve equations. The triangle inequality, for instance, stipulates that the length of the remaining side of a triangle is more than or equal to the sum of the lengths of any two of its sides.
We are given that,
A triangle has sides measuring 8 inches and 12 inches. If x represents the length in inches of the third side
8+12=20
so it has to be less than 20, and 12-8=4,
So it has to be more than 4,
So the only answer that makes sense is
4<x<20.
Therefore, option B is correct.
To learn more about inequality, click:
brainly.com/question/24372553
#SPJ7
Is the point (-5,2) the solution to the system below ?
Answers
(-5 being your x)
(2 being your y)
(2)=-2(-5)-8=2, so
2= 10-8=2
2=2=2
Streets in the city can be represented by the equations in the given table. Use the equations to find the type of quadrilateral that the streets form. Justify your answer.
Answers
Answer:
It is a rhombus.
Step-by-step explanation:
We have the four equations:
3x - y = -4
3y - x = 4
3y = x + 12
y = 3*x - 4
First, we need to write all of them in slope-intercept form, so they are easier to read.
We get:
y = 3*x+ 4
y = (1/3)*x + 4/3
y = (1/3)*x + 12/3
y = 3*x - 4
First, we can see that:
y = 3*x+ 4 and y = 3*x - 4
are parallel lines, because they have the same slope.
y = (1/3)*x + 4/3 and y = (1/3)*x + 12/3 also are parallel lines, because they have the same slope.
Then this is a parallelogram.
Now, here we have two slopes, 3 and 1/3.
Remember that for a line y = a*x + b
A perpendicular line would be written as:
y = -(1/a)*x + c
From this we can see that there are no perpendicular lines in our set of lines.
Then this can not be a square nor a rectangle.
It can not be a trapezoid, because we would need 3 different slopes to make a trapezoid, and here we have only two.
Then this can only be a rhombus.
Below you can see the graph of the four lines to see which quadrilateral they form.
PLEASE HELP IT IS AN EMERGENCY!!!!!!!!!!!!!!!!!!!!
How can you represent an increase in temperature using an addition equation?
Answers
Answer:
multiplication......
Step-by-step explanation:
PLEASE HELP! I NEED THE ANSWER SOON!
Answers
Answer:
6 * (m + n)
Step-by-step explanation:
Answer:
Its the top 2 and the last one
for the given right triangle, find the value of x to the nearest tenth
Answers
Answer:
x=48 degrees
Step-by-step explanation:
the angles of every triangle add up to 180°
62+72=132
180-132=48
x=48°
hope this helps :) have a nice day !!
Claire buys a computer that is on sale for 25% off the original price. The original price is $185 more than the sale price. What is
the original price of the computer?
Answers
Answer:
$740
Step-by-step explanation:
A school cafeteria has 10 1/2 gallons of orange juice to give equally to 7 classes. How much orange juice will each class get
Answers
Answer:
3/2
Step-by-step explanation:
10 1/2 divided by 7 = 1 1/2 or 3/2
how do I find 15.7% of 80 using a scale? (vertical or horizontal only!)
Answers
Answer:
Step-by-step explanation:
12.56/80 = 15.7%
15.7% of 80 = 12.56
A line has a gradient of 4 and passes through the point (1, 9). What it's equation?
Answers
answer: y - 4x - 5= 0
Step-by-step explanation:
y - y1 = m(x - x1)y - 9 = 4( x - 1)y - 9 = 4x - 4y - 4x = -4 + 9y - 4x = 5y - 4x - 5 = 0I dont know if this is right, help plss
Answers
mya sold ipods on her website.she bought the the ipods for $80 each and included a 45% markup to get the selling price.what was the selling price for one ipod?
Answers
Answer:
$116.00
Step-by-step explanation:
80.00x45%=36.00
80.00+36.00=116.00
Nathan planted a tree that is 32.5 inches tall. If the tree grows 4 inches each year, how long will it take for the tree to reach a height of 40 inches
Answers
Answer:
10 years boi ez
Step-by-step explanation:
Aaron's family uses 1/2 gallon of milk every 5 days. How many gallons of milk will they use in 30 days?
Answers
Answer:
Aaron's family will use 3 gallons of milk in thirty days.
Step-by-step explanation:
1. Multiply the amount of milk (1/2) times the days (30)
1/2 x 30 = 15
2. Divide 15 by 5 (every 5 days)
15 / 5 = 3
Find the midpoint of the following
two coordinates:
Please helppp
Answers
Answer:
C. (4, 3)
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
Coordinates (x, y)Midpoint Formula: [tex]\displaystyle (\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})[/tex]Step-by-step explanation:
Step 1: Define
Point (3, 1)
Point (5, 5)
Step 2: Find Midpoint
Simply plug in your coordinates into the midpoint formula to find midpoint
Substitute in points [Midpoint Formula]: [tex]\displaystyle (\frac{3+5}{2},\frac{1+5}{2})[/tex][Fraction] Add: [tex]\displaystyle (\frac{8}{2},\frac{6}{2})[/tex][Fraction] Divide: [tex]\displaystyle (4,3)[/tex]Evaluate the expression for p = 5. Зр
Answers
Answer:
15
Step-by-step explanation:
Answer:
15
Explanation:
If p=5 then 3p=3(5)
3*5=15
Have a beautiful day!
Please help me. 10 points
Answers
Answer:
5.507605086
5.50
Step-by-step explanation:
what is 1/ 3 (x – 10) = -4
(please help )
Answers
Answer:
1/3(x-10)=-4
We move all terms to the left:
1/3(x-10)-(-4)=0
Domain of the equation: 3(x-10)!=0
We add all the numbers together, and all the variables
1/3(x-10)+4=0
We multiply all the terms by the denominator
4*3(x-10)+1=0
Wy multiply elements
12x(x+1=0
Step-by-step explanation:
pls help me with my homework
Answers
When there is a negative in front of the exponent it makes a fraction. It is usually just 1/the number it equals if it were positive.
Answer:
[tex] \frac{1}{81} [/tex]
Step-by-step explanation:
express that with a positive exponent using this:
[tex] {a}^{ - n} \frac{1}{ {a}^{n} } [/tex]
so ..
[tex] {9}^{ - 2} = \frac{1}{ {9}^{2} } [/tex]
now you have to evaluate the exponent/ power
so..
[tex] \frac{1}{ {9}^{2} } = \frac{1}{81} [/tex]
why 81 ?
because the exponent of 9 is 2 so you have to multiple 9 by itself so
9x9=81
so the answer is
[tex] \frac{1}{ {81}^{} } [/tex]
sorry for the bad english hehe
Chase has 8 ounces of coffee beans. If each cup of coffee requires 1/9 ounces of coffee beans how many cups of coffee can chase make?
Answers
Answer:
Chase will be able to make 4 cups
what is the solution of y= -1/3x+5 and 2x-3y=3??
Answers
Answer:
1. x = 15
2. y = 2/3x - 1
Step-by-step explanation:
ok so im really confused i will give brainliest to who answers first!
Answers
Answer:
1) fraction
2)denominator
3)quotient
4)remainder
i hope this helps
3 (n - 4) = 36
please show work if you can
Answers
Answer:
n=16
Step-by-step explanation:
3 (n-4) = 36
3n -12=36
add twelve to both sides. because -12 + 12 is 0. and once you are at zero, you can cancel it out.
3n=48
divide by 3 on both sides
n=16
I will mark you brainiest if you can answer this
Answers
Answer: 6250
Step-by-step explanation: 5 to the 5th power is 3125. Times that by 2 and you get 6250.
A major storm has winds speeds that are at least 110 miles per hour.Write and solve an inequality that describes how much greater these wind speeds are than the slowest hurricane
Answers
Answer:
x ≥ 36 miles per hour
Step-by-step explanation:
The speed of a major storm is at least 110 miles per hour while the speed of the slowest hurricane is at least 74 miles per hour.
Let x represent how much greater these wind speeds are than the slowest hurricane. Therefore:
x ≥ 110 miles per hour - 74 miles per hour
x ≥ 36 miles per hour
This means that the winds speed must be 36 miles per hour greater than the slowest hurricane.
class 7th maths chapter 13 Exponents of Power This is Test question
Answers
Answer:
-11/7
Step-by-step explanation:
Simplify 8x + 4xy - 2y + 5xy - 3x + 7xy
Answers
......//...//../././//..//.././.?
Answers
Answer:.//./././/..
Step-by-step explanation:.././././..././..././//...../
Thomas has at most $60.00 to spend on a shoes and socks. He finds a pair of shoes that he likes for $36.00. If socks are $3.00 per pair, how many pairs of socks could Thomas buy?
Answers
Answer:
99
Step-by-step explanation:
Answer:
Thomas can buy 8 pairs of socks.
Step-by-step explanation:
We can write this in the form of an equation:
36+3x>60 Subtract 36 on both sides.
-36 -36
3x>24 Divide by 3 on both sides.
/3 /3
x>8
Hope this helps and have a great day! (～￣▽￣)～
9 points to 4 points, what is the percent
Answers
Answer:
5% ????
Step-by-step explanation:
Not sure?
I think its 5%