Answer:
(x−3)(x−5)
Step-by-step explanation:
Let's factor x2−8x+15
x2−8x+15
The middle number is -8 and the last number is 15.
Factoring means we want something like
(x+_)(x+_)
Which numbers go in the blanks?
We need two numbers that...
Add together to get -8
Multiply together to get 15
Can you think of the two numbers?
Try -3 and -5:
-3+-5 = -8
-3*-5 = 15
Fill in the blanks in
(x+_)(x+_)
with -3 and -5 to get...
(x-3)(x-5)
Answer:
x+5
Step-by-step explanation:
edge
PLEASE HELP ASAP I HAVE A TEST IN 2 MINUTES!!!!!!
The graph below models the value of a $20,000 car t years after it was purchased.
Which statement best describes why the value of the car is a function of the number of years since it was purchased?
A. Each car value, y, is associated with exactly one time, t.
B. Each time, t, is associated with exactly one car value, y.
C. The rate at which the car decreases in value is not constant.
D. There is no time, t, at which the value of the car is 0.
B. Each time, t, is associated with exactly one car value, y.
Answer:
B
Step-by-step explanation:
I got it right on the test
A sweater was marked down from $40 to
$30. This was a difference of what
percent? Round to the nearest whole
percent.
Answer:
This is a 75% off sale.
Step-by-step explanation:
Hope this helps you :)
Answer:
25 % off
Step-by-step explanation:
30 is 75% of 40 so 25 down
An electrician charges $51 for 3 hours of work. How much would the electrician charge for 2 hours of work?
(for your answer just put the number without the dollar sign)
Answer:
34
Step-by-step explanation:
Givens:
-$51 for 3 hours of work
-2 hours?
Find unit rate:
51 divided by 3
17 per hour
17 times 2 (for 2 hours)
34
two integers whose absolute value is 12
Answer:
-12 and 12
Step-by-step explanation:
I’ll make it brainliest plss answer this one plssssss
Answer:
The answer is C.
Step-by-step explanation:
In order to find the x-intercept and y-intercept, you have to substitute 0 into each expression :
[tex]let \: x = 0[/tex]
[tex]0 - 3y = 6[/tex]
[tex] - 3y = 6[/tex]
[tex]y = 6 \div ( - 3)[/tex]
[tex]y = - 2[/tex]
[tex]let \: y = 0[/tex]
[tex]2x - 0 = 6[/tex]
[tex]2x = 6[/tex]
[tex]x = 6 \div 2[/tex]
[tex]x = 3[/tex]
Given that the x-intercept is 3 and y-intercept is -2. By looking at the picture, graph C fits the coordinates, (3,0) and (0,-2).
A circle with a 12 in diameter is folded in half and then folded in half again. What is the area of the resulting shape in terms of pi?
You want to tile a 10 foot square floor with tiles that are twice as long as they are wide. determine how many tiles you need to cover the floor when the tile length is 2 feet
To cover a floor with an area of 10 square foot, 5 tiles is needed.
Area is the amount of space enclosed by a two-dimensional figure.
If the tile is 2 feet long and twice as long as they are wide, suppose that the tile is a rectangle, then the area of each tile will be:
Area of tile = l x w
where l = 2 feet
w = 1 foot
Area of tile = 2feet(1 foot)
Area of tile = 2 ft^2
To determine how many tiles are needed to cover a 10 foot square floor, divide the area of the floor with the area of each tile.
# of tiles = Area of floor/Area of each tile
# of tiles = 10 ft^2/2ft^2
# of tiles = 5
Learn more about area here: https://brainly.com/question/25292087
#SPJ4
State the angle bisector theorem.

There are 5 dogs and 9 cats at a veterinary clinic. Which choice lists the ratios in the order of cats to dogs, dogs to cats, then cats to total number of animals?
Answer:
9:5= Cats to dogs
5:9 = Dogs to cats
9:14 = Cats to Total number of animals
Step-by-step explanation:
:p
What is the common difference or ratio?
A. The common difference is 0.38.
B.
The common difference is 0.76.
C. The common ratio is 0.99.
D. The common ratio is 1.02.
Answer:
The correct answer is A. The common difference is 0.38
Step-by-step explanation:
Hope i helped! Have a great day <3
I need this ASAP!!
calculate the rate of change on this graph
Answer: The slope is 2
Step-by-step explanation: For questions like these, find 2 points on the graph that are on whole numbers, for example (10,60) and (20,80). Then use the formula y2-y1/x2-x1 to solve for the slope, which would be the same thing as rate of change. 80-60/20-10 which equals 2. The slope would be 2.
Whoever helps gets BRAINLIEST
Answer:
6 is the correct answer.
Annie's soccer team is conducting a passing drill in which each of the 11 members of the soccer team must pass the ball to each of the other members exactly three times. How many times must the ball be passed before the passing drill is over?
Answer:
33
Step-by-step explanation:
if each of the 11 must pass it 3 times, you multiply. 11×3 is equal to 33.
oh shoot I cant figure out how to delete comments but someone told me this is wrong ;(
Answer: 330
Step-by-step explanation: 11 x 10 = 110. 3 x 110 = 330
Find the equation of the line that passes through the following points. Write the equation in slope-intercept form.
(-4.-8) and (-8, -9)
Answer:
The equation in the slope-intercept form will be:
y = 1/4x - 7
Step-by-step explanation:
Given the points
(-4.-8) (-8, -9)[tex]\mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}[/tex]
[tex]\left(x_1,\:y_1\right)=\left(-4,\:-8\right),\:\left(x_2,\:y_2\right)=\left(-8,\:-9\right)[/tex]
[tex]m=\frac{-9-\left(-8\right)}{-8-\left(-4\right)}[/tex]
[tex]m=\frac{1}{4}[/tex]
We know that the slope-intercept of line equation is
[tex]y=mx+b[/tex]
where m is the slope and b is the y-intercept
substituting m = 1/4 and the point (-4, -8) to find the y-intercept 'b'
y = mx+b
-8 = 1/4(-4)+b
-8 = -1 + b
b = -8+1
b = -7
so the y-intercept = b = -7
substituting m = 1/4 and b = -7 in the slope-intercept form of line equation
y = mx+b
y = 1/4x + (-7)
y = 1/4x - 7
Thus, the the equation in slope-intercept form will be:
y = 1/4x - 7
Solve the problem
( Show your work )
2x + 10 =- 4x – 9
Answer:
x = -19/6
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Step-by-step explanation:
Step 1: Define Equation
2x + 10 = -4x - 9
Step 2: Solve for x
Add 4x on both sides: 6x + 10 = -9Subtract 10 on both sides: 6x = -19Divide 6 on both sides: x = -19/6Step 3: Check
Plug in x into the original equation to verify it's a solution.
Substitute in x: 2(-19/6) + 10 = -4(-19/6) - 9Multiply: -19/3 + 10 = 38/3 - 9Add/Subtract: 11/3 = 11/3Here we see that 11/3 does indeed equal 11/3.
∴ x = -19/6 is the solution to the equation.
Write seventy thousand three hundred twenty and sixteen thousandths in standard form
Answer:
27,328.016
Step-by-step explanation:
please help! There is only a,b, and c. There is no option “d”. Please help it’s late!
c i think lmk if I got this
Write the algebraic expression (ex. 2x - 5) for this problem: Eight less than a number
Answer:
x - 8
Step-by-step explanation:
Answer:
Here you can simply use a single operator:
x - 8
please help me i need help asap
Answer:
-6
Step-by-step explanation:
Add the positive numbers first which is nine then add a negative like -8 and you get then add -7 which is -6
Which ratio is equivalent to the ratio 20 to 35? 5 to 7 7 to 5 8 to 14 14 to 8
Answer: it’s 8 to 14 number c
Step-by-step explanation:
Let me know if I’m wrong
The ratio equivalent to 20 to 35 is 8 to 14.
Option C is the correct answer.
What is a ratio?The ratio shows how many times one value is contained in another value.
Example:
There are 3 apples and 2 oranges in a basket.
The ratio of apples to oranges is 3:2 or 3/2.
We have,
20 to 35
This can be written as,
= 20/35
= 5 x 4 / 5 x 7
= 4/7
Now,
5 to 7 = 5/7
7 to 5 = 7/5
8 to 14 = 8/14 = 4/7
14 to 8 = 14/8 = 7/4
Thus,
20 to 35 is the same as 8 to 14.
Learn more about ratios here:
https://brainly.com/question/2462048
#SPJ2
I just need help with the option that is blank
how many groups of 61 are in 10736
Plz helppppppp plzzzzz
Answer:
let me try
Step-by-step explanation:
Which linear equation has a slope of 3 and a y-intercept of -2? Oy = 3x + 2 Oy = 3x - 2 Oy=-2x + 3 Oy=-2x-3
Answer:
B. y=3x-2
Step-by-step explanation:
y=mx+b
m=slope
b=y-intercept
m=3
b=-2
y=3x-2
Hope this helps!
Please mark as brainliest if correct!
162 is what percent of 200?
Answer:
81%
Step-by-step explanation:
divide 162 by 200
Please help!! I will mark you brainlist!
Answer:
Step-by-step explanation:
The answer is D because all you need to do is multiply everything by 0.5, or one half.
It costs $100 to rent the bowling alley, plus $4 per person. The cost for any number (n) of people can be found using the expression 100 + 4n. What is the cost for 15 people? Use the dollar sign. *units are very important!
Answer:
$160
Step-by-step explanation:
Step one:
It costs $100 to rent the bowling alley
plus $4 per person
the expression for the cost is
[tex]C=100 + 4n[/tex]
where n is the number of people
for n= 15
Step two:
let us substitute
[tex]C= 100+4(15)\\\\C= 100+60\\\\C= 160[/tex]
is this true or false bc i’m not sure pleas help
Answer: False.
Step-by-step explanation: The table does not follow a pattern or a relation.
In a smoothie the ratio of ounces of blueberries to ounces of yogurt is 4 to 5.
How many ounces of yogurt would be needed for a smoothie with 10 ounces of blueberries?
Step-by-step explanation:
the answer is 12.5 sorry if i am wrong
Two students are both working on the same problem: A box of laundry soap has 25%
more soap in its new box. The new box holds 2 kg. How much soap did the old box
hold?
Answer:
0.5kg
Step-by-step explanation:
25% of 2kg is 0.25
Answer:
0.25% ounces
Step By Step Explaination: