Answer:
I don’t really know but I think you can get like (x-y)(x+y) = 3(x-y). And then you like do 3(x+y)(x-y)??
Step-by-step explanation:
Answer:
[tex]\frac{x+y}{3}[/tex]
Step-by-step explanation:
[tex]\frac{x^{2}-y^{2} }{3x-3y}[/tex]
use the difference of two squares formula
[tex]\frac{(x+y)(x-y)}{3y-3} \\\\factor out 3 \frac{(x+y)(x-y)}{3(x-y)} \\cancel out the common factor; (x-y)\\your answer is[/tex]
x+y/3
The function g is defined by g(x)= 3x2 - 3.
Find g(3z).
Select the car that gets the best gas mileage per
gallon of gas.
A. Car A can travel 19 miles using 0.7 gallons of gas.
B. Car B can travel 21 miles using 0.6 gallons of gas.
C. Car C can travel 15 miles using 0.4 gallons of gas.
D. Car D can travel 35 miles using 1 gallon of gas.
Plz help me cuz I’m slow lol
Answer:
The answer is A
Step-by-step explanation:
(-2,5).......
......
Please help!! 10-15 much appreciated! :)
Answer:
Step-by-step explanation: sin β = [tex]\frac{oposite }{hypotenuse}[/tex] ; cos β = [tex]\frac{Adjacent}{Hypotenuse}[/tex]
10) sin [tex]32^{0}[/tex] = [tex]\frac{x}{18}[/tex]
18 sin [tex]32^{0}[/tex] = x
18 (0.53) = x
x= 9.5 units
cos [tex]32^{0}[/tex] = [tex]\frac{y}{18}[/tex]
18 cos [tex]32^{0}[/tex] = y
y = 18 (0.85)
y = 15.3 units
You use the same strategy for the rest of the questions. Feel free to reach out if you have more questions.
Let us factorise the following alg
x4/16-y4/81
Step-by-step explanation:
this way we get value of x and y
hope it helps ☺️☺️
if u like give thanks
The lines shown below are perpendicular. If the green line has a slope of
2/5 , what is the slope of the red line?
Answer:
-5/2
Step-by-step explanation:
for perpendicularity;
[tex]m1 = \frac{ - 1}{m2} [/tex]
where m1 is first slope
and m2 is second slope
so here, let m1 be green line slope
and m2 be red line slope
thus,
[tex]m2 = \frac{ - 1}{m1} [/tex]
[tex]m2 = \frac{ - 1}{ \frac{2}{5} } = - 1 \div \frac{2}{5} [/tex]
[tex] = - 1 \times \frac{5}{2} = \frac{ - 5}{2} [/tex]
Find the slope of the line that passes through the given points.(2, 1) and (7,10)
Answer:
1.8
Step-by-step explanation:
Slope: 1.8
Equation of the line: y=1.8x-2.6
Micaela spent $32 on writing utensils pens cost four dollars and pencils cost two dollars if she bought a total of 10 and how many of each kind did she buy
Answer:
6 pens and 4 pencils
Step-by-step explanation:
6 x 4 = 24
4 x 2 = 8
24 + 8 = 32
How much must be added to each of the three number 1, 11, and 23 so that together they form a geometric progression?
Answer:
49
Step-by-step explanation:
Let the three numbers be a1, a2, a3
Let the number to be added to form a geometric progression = x
a1 = 1 + x ; a2 = 11 + x ; a3 = 23 + x
For a geometric progression :
a2 = a1 * r
a2 = (1+x)r
11+x = (1+x)r - - (1)
r = (11+x) / (1+x) ---(1)
a3 = a2 * r
a3 = (11+x)r
23+x = (11+x)r - - -
r = (23+x) / (11+x) - - (2)
Equate (1) and (2)
(11+x) / (1+x) = (23+x) / (11+x)
(11+x) * (11+x) = (23+x) * (1+x)
121 + 22x + x² = 23 + 24x + x²
121 + 22x + x² - x² - 24x - 23 = 0
98 - 2x = 0
-2x = - 98
x = 98 / 2
x = 49
4.1 graphing linear equations worksheet
The ratio of students with brown eyes in Michelle’s class to all of the students in her class is 20:25. What is another way to write this ratio?
Answer:
3/4, 5/6, 8/10 this is in fraction form though. just change it to 3:4
The captain of the cheerleading team, Alicia, counted that they washed 58 cars. Determine if this is a reasonable number of cars that could've been washed.
Answer:
yes but no
Step-by-step explanation:
um well that is a lot by not if there is a bunch of people doing it.
Assume that three fifths of the population has long hair and and one tenth of the poulation has blue eyes. What is the probability that a person does not have long but does have blue eyes?
Answer:
1/25
Step-by-step explanation:
If 3/5 have long hair, then 2/5 do not have long hair
So, the probability of no long hair, has blue eyes = 2/5(1/10) = 1/25
Here is a system of equations.
y=3x-1
y=-x-5
Graph the system. Then write its solution. Note that you can also answer "No sol
B
G H
Mr. Gonzalez is designing a planter box shaped like a rectangular prism. The width of the box is 6 feet, and the length is 4 feet. Find the height of the box if the volume is 150 cubic feet.
Answer: 6.25
Step-by-step explanation:
6•4•(6.25)= 150
y = x3 + x2 − 4x − 16
Answer:
use photo math
Step-by-step explanation:
Answer:
Step-by-step explanation:
DIFFERENTIATE W.R.T. X
3x 2 +2x−4
EVALUATE
x 3 +x 2 −4x−16
EVALUATE
x
3
+x
2
−4x−16
Select the expression equivalent to (8.4x + 2.9) + (–3.7x + 5).
Answer:
4.7x + 7.9
Step-by-step explanation:
trust
9 + 15 using the distributive property to factor out the greatest common factor
Answer:
24
Step-by-step explanation:
9 can be broken down to 3 because 3 x 3 = 9
15 can be broken down to 3 also because 3 x 5 = 15
> 9 + 15
= 3 ( 3 ) + 3 ( 5 )
= 3 ( 3 + 5 )
= 3 ( 8 )
= 24
8.35 < 3x +18.75
Pls help
Step-by-step explanation:
8.35 < 3x + 18.75
3x + 18.75 > 8.35
3x > 8.35 - 18.75
3x > -10.4
x > -3.47
The best equation to graph from is the point slope form of a line. True or false?
Answer:
i say yes
Step-by-step explanation:
this is because it will give you the point to start with and the slope so you will already have all the information to graph
The Lowest common multiple of 2 numbers is 126
what are the 2 numbers
Answer:
Step-by-step explanation:
The least common multiple of 126 and 131 is
16,506
What is the first step in solving this quadratic equation? x^2+5x=6
a) combine like terms
2) set each factor equal to zero
c) subtract 6 from both sides to get it equal to zero.
d) factor
Answer:
c) subtract 6 from both sides to get it equal to 0
Step-by-step explanation:
If a shirt costs 45 dollars, it's marked down to 30% off, what is the amount of the discount?
Answer:
$31.50
Step-by-step explanation:
30% of 45 is 13.5
45-13.5=31.5
Suppose the true proportion of high school students who walk to school in New York City is 0.82. If many random samples of 400 high school students are taken, by how much would their sample proportions typically vary from the true proportion?
a. 0
b. 0.001
c. 0.019
d. 0.148
e. 7.684
Answer:
i think it will be C
Step-by-step explanation:
with the variability formula = squareroot p(1-p)/n which gives you 0.0192
What is the anwser to: h + 5.7 = −5.7
Answer:
h=-11.4
Step-by-step explanation:
because, 5.7+-5.7=-11.4
If two supplementary angles are 3 x space plus space 7 and 2 x minus 1, what is the value for x?
Write your answer as a decimal.
Answer:
3x + 7 + 2x -1
Step-by-step explanation:
(3x+2x)+(7-1)
5x + 6
6 / 5
x=1.2 or 2/10
You don't need to solve it, just write the equations
Answer:
5,640/15=y
y•15=5,640
Which of the following ordered pairs
make this equation true?
y = 3x + 2
B. (8,2)
A. (2, 2)
C, (3, 11)
D. (5, 1)
Answer:
c
Step-by-step explanation:
plug in
y=3x+2
11 = 3(3) + 2
11=11
please help solve 2d + 7 =9
Answer:
D=1 or just 1, i dont get what the question is
Step-by-step explanation:
Answer:
d=1
Step-by-step explanation:
Move 7 to the other side by subtracting 7 on both sides:
2d+7-7=9-7
The equation now looks like this:
2d=2
Divide 2 on both sides:
2d/2=2/2
The equation now looks like this:
d=1 which is the answer
Factorise the following:
a) x + 3x - 4
b) x - 2x - 3
c) x + 2x - 8