Answer:
71.6 degrees
Step-by-step explanation:
Given the vectors
u= <8,4> v = <9.-9> (5 points)
u*v = (8, 4)*(9, -9)
u*v = 8(9)+(4)(-9)
u*v = 72 - 36
u*v = 36
|u| = √8²+4²
|u| = √64+16
|u| = √80
|v| = √9²+9²
|v| = √81+81
|v| = √162
Using the formula
u*v = ||u||v| cos theta
36 = √80(√162)cos theta
36 = √12960 cos theta
cos theta = 36/√12960
cos theta = 36/113.8
cos theta = 0.3162
theta = arccos(0.3162)
theta = 71.56 degrees
Hence the angle between the given vectors to the nearest tenth of a
degree is 71.6 degrees
3+3-5^2
There was a person who wanted frisk or chara with a buzz cut or pixi cut so here you go ^^
Answer:
-19
Step-by-step explanation:
[tex] 3 + 3 - {5}^{2} [/tex]
[tex]3 + 3 - 25[/tex]
[tex] = - 19[/tex]
Estimate the circumference of the circle to the nearest hundredth. Use n= 3.14 and the diameter is 4.
Answer:
25.13
Step-by-step explanation:
2(3.14)(4)
4 is the radius 8 would be the diameter
Spins a fair spinner numbered 1 - 5 and flips a fair coin. What is the probability of obtaining a factor of 15 and a tail?
Answer:
3/10
Step-by-step explanation:
Probability is the ratio of the number of possible outcome to the number of total outcome.
Given that the fair spinner is numbered 1 - 5, the factors of 15 there are 1, 3 and 5 hence the probability of obtaining a factor of 15
= 3/5
The probability of obtaining a tail from the flip of a coin
= 1/2
Hence the probability of obtaining a factor of 15 and a tail
= 3/5 * 1/2
= 3/10
Find the solution
4y-x=5+2y
3x+7y=24
Answer:
24
Step-by-step explanation:
HELP ASAP ILL GIVE U BRAINLEIST
Answer:
"A number cubed is a power where the base is the variable n and the exponent is 3"
"Increased by 4 means add 4"
"The expression is written as n^3 + 4"
A. 13 π
B. 6.5 π
C. 42.25 π
D. 60 π
Answer:
12^2 + 5^2= c^2 c=13 Area of circle A= pi× r^2 A= 42.25×piCI do exams and quizzes if your interested, guaranteed A!Kylie borrowed a book from a library. The library charged a fixed rental for the book and a late fee for every day the book was overdue. The expression below shows the charges Kylie paid for the book when she returned it x days after the due date:
2 + 0.25x
What does the constant term of the expression represent?
The late fee for the book
The fixed rental for the book
The number of books borrowed
The number of days the book was overdue
Answer:
The fixed rentals for the book
Answer:
B
Step-by-step explanation:
A baker melts 80 grams of chocolate that contains 40% cocoa and mixes it with 60
grams
of his secret mixture. The result is a chocolate with 55% cocoa. What is the
percent of cocoa in the baker's secret mixture?
Answer:
15%
Step-by-step explanation:
55%-40% = 15% cocoa.
When Three friends divide four boxes of baseball trading cards ?evenly, they each get 48 cards. How many cards are in each box?
Answer:
36 cards in each box
Step-by-step explanation:
Let the number of cards in each box be x.
4 * x / 3 = 48 (4 packs of cards, three friends)
x / 3 = 21
x = 36.
Answer:
36 cards in each box
Step-by-step explanation:
Because each friend gets the same amount of cards, there needs to be 48*3 or 144 trading cards in total. There are 4 boxes so in each box there would be 144/4 or 36 cards in total.
Rewrite in simplest terms: 3(2p - 5) - 6p
-15
Reason:
First, use the distributive property
3(2p - 5) - 6p = 6p - 15 - 6p = -15
9x + 5 = 4(x + 2) + 5x
solve for X
Answer:
no solution
Step-by-step explanation:
9x + 5 = 4(x+2) + 5x
9x + 5 = 4x + 8 + 5x
9x + 5 = 9x + 8
9x + 5 can never be equal to 9x + 8, so the answer is no solution
Answer:
x=3
Step-by-step explanation:
9x + 5 =4(x+2) + 5x
9x + 5= 4x + 8+ 5x ( do the parenthesis first- mulitiply 4 and x and get 4x and 4 times 2 = 8)
9x + 5 = 9x + 8 ( add the x's together 4x +5x = 9x )
9x = 9x + 3 ( subtract 5 both sides and you get 3 )
=3 ( subtract 9x from both sides
Brainliest if right i need a couple more to move on :)
and if there is a choice no solution :))
how many circles can be drawn passing through three non collinear points and how many circles can be drawn passing through three collinear points
Answer:
Only one circle can be drawn through three non nonlinear points, No circle can be drawn through three nonlinear points
Step-by-step explanation:
A circle has a curve. As long as the three non nonlinear points both have the same amount of distance from the center of the circle it can be a circle drawn. No circle can be drawn through three points on the line.
plz plz plz help ASAP
Answer
B. number five is right
Step-by-step explanation:
Answer:
$5
Step-by-step explanation:
First, subtract the $6 toy from the total of $71.
$71 - $6 = $65
The total of the shirts and pants is $65.
She bought 9 shirts and 4 pants, which would be 13 shirts and pants.
We then divide the total cost of the shirts and pants, $65 by the total shirts and pants, 13.
65 / 13 = 5
So, each shirt or pants costs $5.
I would appreciate brainliest, if not that's ok!
The rectangle is enlarged by a scale factor of 5. What is the perimeter of
the enlarged rectangle?
Answer:
I believe its 90
Step-by-step explanation:
You multiply each side by 5
5x5=25
double it for the other side
4x5= 20
double it
50+40=90
NEED ANSWERS ASAP!! Find the value of X
Answer:
x=114
Step-by-step explanation:
These are alternate exterior angles, so they are the same. And because 114-10=104, they are the same if x=114.
What is the solution set for −4 x + 10 ≥ 5 x + 55?
Answer:
(-5,0)
Step-by-step explanation:
Put -4x+10 ≥ 5x+55 in Desmos Scientific Calculator and you have your answer
Please explain how you got the answer. Don’t just tell me the answer
Answer: (4 3/5) x (3 1/2)
23/5 (3 1/2)
23/5 (7/2)
161/10 =
your answer is 16 1/10
Step By-step explanation:
Consider the line - 4x – 3y = 5.
What is the slope of a line perpendicular to this line?
What is the slope of a line parallel to this line?
Answer:
The slope of the perpendicular line is 1/4
A line parallel to this will have the same gradient of -4.
IM GIVING 43 POINTS PLS ANSWER ASAP I MARK BRAINLIEST
Answer:
m = 3Step-by-step explanation:
Get two points and use slope formula
Points
(50, 40) and (60, 70)Find the slope:
m = (y₂ - y₁)/(x₂ - x₁) m = (70 - 40)/(60 - 50) = 30/10 = 3The expression logx (ab) is equivalent to
Answer:
logx a + logx b
Step-by-step explanation:
DUDE HOW COME NO ONE HELPS ME WHEN THIS THING IS DUE TOMORROW LIKE PLS I WILL MARK YOU IF THATS ALL YOU WANT
Answer:
50%
Step-by-step explanation:
Answer:
3
Step-by-step explanation:
look at where the line perfectly goes through a point on the table, ie (60,20) or (70,50), and count up each unit until you see it is aligned with another point that perfectly crosses through. then see how many units left or right you need to go to reach that point. on this graph you go up 3 units and to the right 1 unit, 3/1=3. the slope is 3
4x + 3y = -26
x-3y =-14
Answer:
y = 8 x= -16
Step-by-step explanation:
4x+26x = -6y =14
30x = 14
-6y = 14 x = 14- 30
y+= 14-6
y = 8 x= -16
Determine 93% of 108. Round your answer to the nearest tenth.
Answer:
100.4
Step-by-step explanation:
Answer:
100.4
Step-by-step explanation:
Ryan scored 12 more points than Alex on a video game. If together they scored 214 points, how many points
does each person score?
Answer:
Ryan 113, Alex 101
Step-by-step explanation:
Ryan beats Alex by 12 points
101+101=202
202+12=214
113+101=214
is 144 a natural number yes or no
Answer:
is 144 a natural number yes or no
Yes
I'm not sure
CAN I GET HELP PLEASE!
Answer:
0.30 of a book / hour or 3/10 of a book per hour.
Step-by-step explanation:
Usually I tell people to put the numbers into decimals. Unfortunately for this question, it won't work. So we have any choice but to do it with fractions.
r = amount / time
amount = 1/4
time = 5/6
r = [tex]\frac{\frac{1}{4} }{\frac{5}{6} }[/tex]
Invert the denominator and multiply
r = [tex]\frac{1}{4} * \frac{6}{5}[/tex]
r = 6 * 1 / (5*4) = 6/20 = 3/10
The answer is 3/10 of a book per hour
5/6 of an hour is almost an hour.
1/4 of a book is 0.25 of a book.
3/10 of a book is 0.30 of a book. So it looks like it is just about right.
On a map with a scale of 1 cm : 2.5 km two towns are 5 cm apart. What is this distance in real life?
Answer:
12.5 km
Step-by-step explanation:
1cm = 2.5km
2cm = 5km
3cm = 7.5km
4cm = 10km
5cm = 12 5km
Justin jogged for four days in a row. He jogged 2 miles the first day. On the second day, he jogged 75% of the distance he jogged the first day. On the third day, he jogged 1.5 miles more than the distance he jogged the first day. If Justin jogged a total distance of 9.25 miles, how many miles did he jog on the fourth day?
Answer:
2.75 miles jogged on the fourth day
Step-by-step explanation:
Justin jogged 2 miles on the first day.
On the second day he jogged 75% of 2 miles. To find 75% of 2 miles we need to divide by 100 and multiply by 75.
2 / 100 = 0.02 x 75 = 1.5 miles jogged on the second day. (3.5 miles jogged in total so far)
On the third day he jogged 1.5 miles more than the last day:
1.5 + 1.5 = 3 (6.5 miles jogged so far)
9.25 total miles were jogged, meaning that we will need to subtract 6.5 from 9.25 to get the answer:
9.25 - 6.5 = 2.75 miles jogged on the fourth day
Help please please answer
Answer:
A
Step-by-step explanation:
x. y = 28
check attachment
Luego de dormir 6 horas al día a usted le quedan 18, que puede repartir entre estudio y ocio. X representa
las horas dedicadas al ocio y la variable Y las horas de estudio. Represente la relación lineal existente entre
las distintas combinaciones posibles de X e Y.
The linear relationship between the different possible combinations of X and Y is Y= -X + 18.
What is an equation?An equation contains one or more terms with variables connected by an equal sign.
Example:
2x + 4y = 9 is an equation.
2x = 8 is an equation.
We have,
We know that after sleeping for 6 hours, there are 18 hours left in a day. These 18 hours can be split between leisure time and study time.
Now,
Let's let X be the number of hours of leisure time, and Y be the number of hours of study time.
Since we know that there are a total of 18 hours,
we can set up the following equation.
X + Y = 18
This equation represents all the possible combinations of X and Y that add up to 18 hours.
Now,
To represent a linear relationship between X and Y.
Y = -X + 18
This equation represents a linear relationship between X and Y.
Where X is the independent variable and Y is the dependent variable.
This is in the form of a slope-intercept form.
y = mx + c
Where m = -1 and c = 18
So,
The slope = -1 and the y-intercept is 18.
Thus,
Y= -X + 18 represents all the different possible combinations of leisure time and study time that adds up to 18 hours.
Learn more about equations here:
https://brainly.com/question/17194269
#SPJ5
The complete question.
After sleeping 6 hours a day, you have 18 hours left, which you can divide between study and leisure. X represents the hours dedicated to leisure and the variable Y the hours of study. Represent the linear relationship between the different possible combinations of X and Y.