Answers
Answer:
2a squared - 4a
Step-by-step explanation:
12 a^2 - 3a - 10a^2 - a
12 - 10 = 2
-3 - 1 = -4
2a^2 - 4 a
Related Questions
The price of a pair of shoes decreased
from $69.99 to $19.95. What was the
percent decrease in the price of the
shoes?
Answers
Answer:
About 71.5 percent
Step-by-step explanation:
Hope this helps! If you have any questions please comment.
Glen's monthly gross pay is $4,500. The deductions from his monthly pay include $764.25 for federal income tax,
$344.25 for FICA taxes, $180 for his retirement plan, and $275 for health insurance. Find the percentage of his gross
wages that Glen takes home, to the nearest percent.
A) 3.5%
B)34%
C) 3.4%
D)65%
Answers
Answer:
It would be 34%
Step-by-step explanation:
The difference between $4500 and $2936.50 (the total after subtracting his monthly payments) is 34.74%
Answer:
Step-by-step explanation:
65%
Sharla’s recipe for 4 servings of stew has 2 potatoes and 4 celery sticks. How many potatoes and celery sticks does she need to make 6 servings?
Answers
Answer:
4 servings : 2 potatoes and 4 celery sticks. Find the number of potatoes and celery sticks in 6 servings. 6/4 = 1.50 2 potatoes x 1.50 = 3 potatoes 4 celery sticks x 1.50 = 6 celery sticks 6 servings of stew has 3 potatoes and 6 celery sticks. Other way of computing for the 6 servings is getting the number of potatoes and celery sticks per serving.
Step-by-step explanation:
and 2 times 3 equals 6 and 1 times 3 equals 3
At 5 P.M., the total snowfall is 3 centimeters. At 11 P.M., the total snowfall is 14 centimeters. What is the mean hourly snowfall? Write your answer in simplest form as a fraction or mixed number.
Help me out
Answers
Answer:
1 hour and 30min
Step-by-step explanation:
11-5=6 then divide 6 to 5 and you get 1.2 which is 1 hour and 30min
2.5 cm of snow fall on average each hour.
What is average?
The average formula is also known as the arithmetic mean, which is the ratio of the sum of all given observations to the total number of observations. Thus, using the average formula, the arithmetic mean for any sample of data can be calculated.
The average formula for a given set of data or observations can be expressed as:
Average Formula:
Average = (Sum of Observations) ÷ (Total Numbers of Observations)
Given:
The number of millimeters that fell throughout the course of the period divided by the number of hours is the mean hourly snowfall.
At 5:00 PM,
There are 4 hours from 6 PM to 9 PM.
So, there is 2 millimeters of snowfall as of 5 p.m.
and, 12 millimeters of snowfall as of 9 p.m.
Then, the accumulation of snow rises by
=12-2
= 10 cm in those four hours.
Thus, on an average the snow fall at rate
= 10/4
= 2.5
Hence, 2.5 cm of snow fall on average each hour.
Learn more about average here:
https://brainly.com/question/24057012
#SPJ2
When a number cannot be divided evenly, the amount left over is called the
Answers
Answer:
The remainder.
Step-by-step explanation:
I hope this helps.
Im not sure how to answer this question.
u= 5i-2j+3k v= -2i+3k
Find a vector that is in the direction of the vector v , whose magnitude is twice that of vector u
Answers
9514 1404 393
Answer:
(-4√494)/13i +(6√494)/13k ≈ -6.8388i +0j +10.2585k
Step-by-step explanation:
To answer this question, you need to know two things:
1) the direction of vector v
2) the magnitude of vector u
__
direction of v
A direction is specified by a "unit vector", one with the proper ratio of components, and a magnitude of 1. It is found from a given vector by dividing that vector by its magnitude.
The unit vector in the v direction is ...
v/|v| = (-2i +3k)/(√((-2)² +3²) = (-2i +3k)/√13
__
magnitude of u
The magnitude of vector u is ...
|u| = √(5² +(-2)² +3²) = √38
__
Then the desired vector is ...
(2|u|)(v/|v|) = 2√38(-2i+3k)/√13 = (-4√494)/13i +(6√494)/13k
_____
Additional comment
We have chosen to "rationalize the denominator" by writing √(38/13) as (√494)/13.
Tina just opened a new restaurant. She earned $550 on
the first dayand $750 on the third day that she was open
for business. If Samantha's earnings continue to increase
at the same rate, by how much will she earn on the 7th
day? $
SHOW YOUR WORK.
HINT: Find the equation of the line in the Slope Intercept
form and set x = 7.
1) Find the slope.
2) Use the point slope method to get the equation of the line.
Write the equation in Slope Intercept form.
3) Substitute 7 for x to get the answer.
Answers
Answer:
Samantha will earn $1,150 on the 7th day.
Step-by-step explanation:
Linear Modeling
It consists of finding the equation of a line that represents the data provided in a specific situation.
Tina's (or Samantha's) earnings are $550, x, $750,... where x is an unknown amount for the second day of her new restaurant.
The earnings continue to increase at the same rate until the 7th day. We must find the earnings for that last day.
The linear model can be found in several ways. We'll use the slope-point form of the line, finding first the slope and then the y-intercept.
The equation of the line in slope-intercept form is:
y=mx+b
Being m the slope and b the y-intercept.
1) Find the slope
Suppose we know the line passes through points A(x1,y1) and B(x2,y2). The slope can be calculated with the equation:
[tex]\displaystyle m=\frac{y_2-y_1}{x_2-x_1}[/tex]
We have the points (1,550) and (3,750), thus:
[tex]\displaystyle m=\frac{750-550}{3-1}=100[/tex]
2) Get the equation of the line
Substituting into the equation of the line, we get:
y=100x+b
Select the point (1,550), substitute into the above equation, and solve for b:
550=100(1)+b
Solving:
b=450
Thus we complete the equation of the linear model:
y=100x+450
3) Substitute 7 for x
y=100(7)+450
y=1,150
Samantha will earn $1,150 on the 7th day.
1/2 X 2/3 multiply fraction
Answers
Answer:
2/6 or 1/3 simplified
Step-by-step explanation:
First multiply the numerators which is the top number of both fractions, which for this equation is 1 and 2 so 1x2=2. So your final fraction would have a numerator of 2 unless simplified. Next, multiply the denominators which are the bottom numbers of the fraction for this one its 2 and 3 so 2x3=6. Your final fraction is 2/6, if simplified 1/3.
heeeeeeeeeeeelllllllllllllpppppppppppppp
Answers
Answer:
Step-by-step explanation:
<1 is congruent with <3, <5, and ,<7 because they are all vertical angels
If ΔOCD ≅ ΔJAL, then which of the following statements are true? Select True or False for each statement.
Answers
Answer:
true
true
false
true
Step-by-step explanation:
A building has a shadow that is 18 feet long. Will is 5 feet long, and he is standing next to the building. Will has a shadow that is 3 feet long
Answers
Answer:
:The height of the building is 30ft
Step-by-step explanation:
HELP PLEASE! E lies in the interior of
m
m
m
Show Your Work
Answers
the rational number -28 is equal to?
Answers
6 X 9 =
6 X (5 + 4)
6 X 9 = (6 X 5) + (6 X 4)
6 X 9 =
6 X 9 =
54
Answers
Answer:
54
Step-by-step explanation:
9(6)=54
6(9)=54
54=(30)+(24) 54=54 so it is true
9x6=54
What percentage of the total variation in test scores is not explained by the linear relationship between years of study and test scores?
Answers
Answer:
Check explanation section.
Step-by-step explanation:
So, we have the following parameters or information from the question above:
=> that the regression equation is Score = 31.55 + 10.90 Years.
So, the regression equation is in the form of mx + c.
Thus, the coefficient that is constant = 31.55 and the coefficient that shows or represents the years = 10.90.
=> Also, we have the value which is most important in this question that is the coefficient of Determination which is represented as R-sq and has the value of 83%.
The percentage of the total variation in test scores is NOT explained by the linear relationship between years of study and test scores = 100% - 83% = 17%.
For the percentage of the total variation in test scores is explained by the linear relationship between years of study and test scores = R- sq = 83%.
CAN YOU PLZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ HELP (33 points)
Yoshiro has a new puppy. She decides to create an enclosure for her puppy in her backyard. The enclosure is in the shape of a hexagon, with one pair of opposite sides running the same distance along the length of two parallel flowerbeds. A sketch of the enclosure is shown below.
QUESTION: What do you know and what do you see?
Answers
Answer:
So, I know that we will have to find the Area of the "Shape" And I see a *Unlabeled/Unknown* Shape that we have to find the answer of/to.
Step-by-step explanation:
To find the volume, you multiply length times width times height, which is 3x1x2, which equals six. So the volume of the fish tank is 6 cubic feet. Volume is also how loud a sound is.
To find the area of a rectangle, multiply its height by its width. For a square you only need to find the length of one of the sides (as each side is the same length) and then multiply this by itself to find the area.
Maybe the Definitions Can help, Have a nice day
Tyler has a baseball bat that weighs 28 ounces. Find this weight in kilograms and in grams. (Note: 1 kilogram ≈ 35 ounces)
Answers
Answer:
793.787 grams 0.794 kilograms
Step-by-step explanation:
can't explain hope helps
HELLPPPPPPPP PLEASSSEEE :)
Answers
Answers for Row 1: 2, -6, -1
Answers for Row 2: 0, 5, 0
========================================
Explanation:
When we add matrices, we must first make sure they are the same dimensions. In this case, both are 2x3 matrices, so we can add them.
To add matrices, you add the corresponding components.
For example, in the first row, first column, we have B+A = -2+4 = 2. So the value 2 will go in the first row, first column, of the answer matrix.
The other elements are handled in a similar fashion.
2x - 3y = 12
4x + 3y = 24
x = y =
Answers
Answer:
(X,Y) = (6,0)
Step-by-step explanation:
Simplify:
x2 +5x-14
x2+10x+21
Answers
Answer:
4x + 15x + 7
Step-by-step explanation:
x2 + x2 = 4x
5x + 10x = 15x
-14 + 21 = 7
If data set A has a larger standard deviation than data set B data set A is lees spread out than data set B
A. True
B. False
Answers
Answer:
false
Step-by-step explanation:
Solve for n:
24 = 3n - 15
Answers
Answer:
N = 13
Step-by-step explanation:
Move all terms containing n to the left, all other terms to the right.
Add '-3n' to each side of the equation.
24 + -3n = -15 + 3n + -3n
Combine like terms: 3n + -3n = 0
24 + -3n = -15 + 0
24 + -3n = -15
Add '-24' to each side of the equation.
24 + -24 + -3n = -15 + -24
Combine like terms: 24 + -24 = 0
0 + -3n = -15 + -24
-3n = -15 + -24
Combine like terms: -15 + -24 = -39
-3n = -39
Divide each side by '-3'.
n = 13
Simplifying
n = 13
find the slope of the line that passes through (10,7) and (8,17)
Answers
-5 because there are 5 points in between those points if it were to be on a graph.
A town has a population of 17000 and grows at 3% every year. What will be the population after 10 years, to the nearest whole number?
Answers
Answer:
22847
Step-by-step explanation:
17000(1.03^x)=f(x)
f(x)=22847
Have you ever been to a carnival? What was it like?
Answers
Answer:
Fun! Cotton candy is my favorite!
Answer:
yes it was fun
Step-by-step explanation:
i dont know if there are answer options but it was fun and had really good food. it had long lines for the rides but they were fun. there was a haunted mansion which was my favorite and then the fireball was my fav ride.it had good funnel cake and was a fun time with friends. hope this helps
Yamisley 4 friends decided to bring food if each of them brought 4 slices of pizza and 3 bags of chips how many slices of pizza do they have in total
Answers
Answer:
16 slices and 12 bags
Step-by-step explanation:
PLEASE HELP !!!
A square is being constructed inside of a circle with a center of O. Point M will serve as one of the vertices of the square
Determine whether the methods listed below will help to find any of the other three vertices. Select Helps to Find the Vertices or Does Not Help to Find the Vertices for each method.
Helps to Find the Vertices Does Not Help to Find the Vertices
Set the compass to the length of the circle's radius. With the point of the compass set at M, strike two marks that intersect the circle
Draw a ine through that intersects the circle
Construct a perpendicular line through line that intersects the circle in two spots
0002
DO
Answers
Answer: yes
No
Yes
Step-by-step explanation:
A fair coin is continually flipped until heads appears for the 10th time. Let X denote the number of tails that occur. Compute the probability mass function and the expected value of X.
Answers
Answer:
P (X = i) = (i + 9 _ 9) (1/2)^(i + 10)
Step-by-step explanation:
Range of X = {0, 1, 2, 3......10}
P (X = i) = P (NB (10, ½) i = 10)
P (X = i) = (i + 9 _ 9) (1/2)^10 (1/2)^(1+10-10)
P (X = i) = (i + 9 _ 9) (1/2)^10 (1/2)^1
P (X = i) = (i + 9 _ 9) (1/2)^(i + 10)
Given the two points, write the equation in slope-intercept form. (1,4) (2,7)
Answers
Answer:(_＼ヽ
＼＼ .Λ＿Λ.
＼( ˇωˇ)
> ⌒ヽ
/ へ＼
/ / ＼＼
ﾚ ノ ヽ_つ
/ /
/ /|
( (ヽ
| |、＼
| 丿 ＼ ⌒)
| | ) /
`ノ ) Lﾉ
(_／
Step-by-step explanation: I like cats!
Answer:
y = 3x + 1
Step-by-step explanation:
Which expression is equivalent to this expression? 4a + (-6b) – 3a + 2b
A. a + 4b
В.a – 4b
C. 7a - 8b
D. 7a - 4b
Answers
Answer:
B
Step-by-step explanation:
