Consider vectors u = (2, 1) and v = (4, -1) with the angle between them equal to 40°. What are the scalar projections
uy and v?
Answers
Answer:
Can see anything??
Step-by-step explanation:
Answer:
D.
Step-by-step explanation:
edg
Related Questions
Coach Burns charted the change in his runners’ 5K times from the first race of the year to the second race of the year. Which student improved the most by decreasing the time needed to run the race? PLEASE HELP IM ON A EXAM!!!
Answers
Answer:
student a
Step-by-step explanation:
i just took the exam
15-a=20 what is the vaule of a?
Answers
Answer:
15a=20
a=20/15
a=4/3
ok
Answer:
a=-5
Step-by-step explanation:
15-a=20
Solve for a.
15-20=a
-5=a
If Triangle ABC~trIangle DEC, find the value of x and y."
Answers
Answer:
The right answer would be (D) x = 1.
Step-by-step explanation:
So since triangles ABC and DEC are congruent to each other, your gonna try to find the value of x. So from the figure we know that AB = 4x - 1, BC = 4, AC = 5, DE = x+2, CE = 4 and EC = 5. And since ΔABC ≅ ΔDEC the corresponding sides would be equal. And after, we will have :
AB = DE
4x - 1 = x + 2
4x - x =2 + 1
3x = 3
x = 1
So, as it shows, the value of x is one. So (D) x = 1 is the right answer. Hope this helped! :)
12.
ΥΥΥΥΥ
help please
Answers
Answer:
لطفا دانش مغز بزرگ من تست من قاشق تخم مرغ لاک پشت راه من را از طریق شما
Step-by-step explanation:
Answer:
I believe th e andwer to that is y5
The vertices of an ellipse are (0,-1) and (8,-1). The endpoints of the minor axis are (4,1) and (4,-3). Write the equation of the ellipse in general form
Answers
Answer:
x^2+4y^2-8x+8y+4=0
Step-by-step explanation:
The general form of the given ellipse is x² +4y² - 8x + 8y + 4 = 0.
What is an ellipse?An ellipse can be defined as a shape that looks like an oval circle.
The equation of an ellipse is
[tex]\dfrac{\left(x - h\right)^{2}}{a^{2}} + \dfrac{\left(y - k\right)^{2}}{b^{2}} = 1[/tex]
Where (h, k) is the center a and b are the lengths of the semi-major and the semi-minor axes.
The vertices of an ellipse are (0,-1) and (8,-1).
The endpoints of the minor axis are (4,1) and (4,-3).
The following equations take into account the different properties of an ellipse:
[tex]k = -1k=−1, h^{2} = a^{2}h 2 =a 2 , \left(h - 8\right)^{2} = a^{2}[/tex]
[tex]\begin{cases} b = 2 \\ k = -1 \\ h^{2} = a^{2} \\ \left(h - 8\right)^{2} = a^{2} \end{cases}[/tex]
We get that h = 4 k = -1, a = 4, and b = 2
The standard form of the given ellipse is
[tex]\dfrac{\left(x - 4\right)^{2}}{4^{2}} + \dfrac{\left(y + 1\right)^{2}}{2^{2}} = 1[/tex]
So the general form will be as : x² +4y² - 8x + 8y + 4 = 0.
Thus, the general form of the given ellipse is x² +4y² - 8x + 8y + 4 = 0.
Learn more about ellipses here:
brainly.com/question/9448628
#SPJ2
1/2/2/3
Which question can be answered by this expression?
Answers
Answer:
1/2 / 2/3
(1*3) / (2*2)
3/4
Two-thirds of a half equals three-quarters
Answer:
no question
Step-by-step explanation:
it cant thats not an answet
Find the total amount in the compound interest account 1000 is compounded annually at a rate of 11% for 7 years round to the nearest cent
Answers
Answer:
The answer is 400
Step-by-step explanation:
please help?
Find measure of angle C
Answers
Answer:
82
Step-by-step explanation:
Im pretty sure the answer is 82 as it's a striaght line and all you have to do is subtract 180-98
The sum of two numbers is 30. One number is 12 more than the other. Find these two numbers.
Answers
Answer:
21 and 9 are the numbers
Step-by-step explanation:
check by doing 21 minus 9, they also add into 30 together. if you haven't already figured it out.
Evaluate the given algebraic expression for x = 2 and y= 3.
-Зху
-6
-12
-18
-24
Answers
Answer:
-18
Step-by-step explanation:
-3xy,X=2 ,y=3
-3(2)(3)
-3(6)
=-18
A new pair of shoes cost $78. They are on sale for $60.06.
What is the percent of change?
Answers
Answer: 23%
Step-by-step explanation:
From the question, we are informed that a new pair of shoes cost $78 and that they are on sale for $60.06.
The percent of change will be calculated as:
Change/ Cost price × 100
= [(78 - 60.06) / 78] × 100
= (17.94 / 78) × 100
= 0.23 × 100
= 23%
Carissa earns $450 per week for a 40 hour work week plus $16.83 per hour for each hour of overtime after 40 hours. Write an equation that would be used to determine her weekly wages where,
Answers
Answer:
450 + 16.83[tex]x[/tex]
x = the number of overtime hours worked.
Answer:
y = 16.83x + 450
Step-by-step explanation:
y - the amount earned
x - the hours worked overtime
450 is a constant, it is a value that is always present, and doesn't change or depend on anything. 16.83 is a coefficient whose value needs to be multiplied by the x value to hold true in the equation.
Solve for x given BD = 2x + 3 and AE = 6x + 4 . Assume B is the midpoint of overline AC and D is the midpoint of overline CE.
Answers
Answer: 1
From the second sentence, we have AB = BC = CD = DE = y. So AE = 4y and BD = 2y (you can see by drawing a diagram), and AE = 2BD. Substituting 2x + 3 for BD and 6x + 4 for AE in AE = 2BD, we have 6x + 4 = 2(2x + 3), 6x + 4 = 4x + 6. Solving, we see x = 1.
i hope this helped! :D
THIS QUESTION IS NOT SUPER HARD, SO PLEASE ANSWER
Mr. Chen drives 16 mile from his house to the grocery store.
Ms. Peterson drives twice this distance from her house.
Which model represents the distance in miles that Ms. Peterson drives?
Answers
Answer:
C
Step-by-step explanation:
sorry if im wrong im not very smart
What is the area, in square meters, of the trapezoid below? I need help please.
Answers
Answer:
48.72
Step-by-step explanation:
you would have to use area for a trapezoid formula! which is
A=(a+b)/2 x h plug in your units and you get 48.72
Which shows the algebraic representation of the phrase and its value when n = 4.2? "twenty-eight plus the product of five and a number" 28 minus 5 n; when n = 4.2 the value is 7 28 + 5 n; when n = 4.2 the value is 49 28 n minus 5; when n = 4.2 the value is 112.6 28 n + 5; when n = 4.2 the value is 122.6
Answers
Answer:
when n = 4.2 the value is 49
Step-by-step explanation:
Which shows the algebraic representation of the phrase and its value when n = 4.2?
"twenty-eight plus the product of five and a number"
Where the number = n
28 + 5n
n = 4.2
28 + 5(4.2)
28 + 21
= 49
Answer:
b.
Step-by-step explanation:
Please help me y’all look at the picture attached
Answers
Answer:
the answer her is 180 the second one
plzzz help me i hate math:(
Answers
Answer:
D
Step-by-step explanation:
Combine the fractions by finding a common denominator (A denominator shared by two or more fractions.)
Abbie has to do 25 math problems tonight. She has completed 40%. How many problems has she completed?
Answers
Answer:
10
Step-by-step explanation:
0.4*25
Please help thank you so mich
Answers
Answer:
15w = s
Step-by-step explanation:
When you look at the graph, after one week, Michael has earned 15 dollars. So if you're trying to find the amount for w weeks, you would multiply 15 by w to get s, the amount of money in Michael's account.
Hope this helps!
Hedgehog68
Si en un grupo de 10 personas se va a repartir refrescos de 10 sabores diferentes, y se sabe que hay uno de fresa y uno de piña ¿cuál es la probabilidad que el primero en ser repartido sea de piña y el segundo de fresa?
Answers
Respuesta: 0.011
Explicación paso a paso:
Dado que:
Número de sabor a refresco = 10
Número de sabor a piña = 1
Número de sabor a fresa = 1
P (primero es fresa) = número de sabor a fresa / número total de sabor
P (primero es fresa) = 1/10
P (el segundo es sabor a piña) = número de sabor a piña / número total de sabor
P (segundo sabor a piña) = 1/9
Probabilidades independientes:
P (primero es fresa) * P (segundo sabor a piña)
= (1/10) * (1/9)
= 1/90
= 0.011
The length of a rectangle is 6 cm more than twice its width. The sum of the length and width is 24 cm What are the dimensions of the rectangle?
Enter your answers in the box.
Answers
Answer:
width:6, length:18
Step-by-step explanation:
You can subsititue width with x.
The length would then be 2x+6.
The value of width and length combined is 24.
The equation would be (2x+6)+(x)=24
Simplify to 3x+6=24
Subtract 6 from both sides giving 3x=18
Simplify to x=6
There's the width. Now you can substitute to find the length.
(6x2)+6=18
I hope this is right.
$600 at 5% for 2 years
Answers
Answer:
60
Step-by-step explanation:
600 times 5% = 30
30 times 2 = 60
Answer is 60
BRAINLIEST PLEASE
need help ASAP ,
-40 points
Answers
Answer:
A
Step-by-step explanation:
MK and KM are the same line segment
and JKM and LMK share two angles K and M as well as the side of MK or KM making it a Side.Angle.Side
The tortoise and the hare are having a race. After the hare runs 16 miles the tortoise has only run 4 miles. The relationship between the distance the tortoise “runs” in miles for every miles the hare runs is . Graph this relationship.
Answers
Answer:
16/4=4 y=4x
Step-by-step explanation:
Please help me
Will mark as brilliant<3
Answers
Answer:
day on will be 5 day two will be 8 day 5 is 17 day 7 is 23
Step-by-step explanation:
Will give brainliest
What is the measure of angle P in the figure shown here?
Answers
Answer:
48
Step-by-step explanation:
66*2=132
180-132=48
can someone help me?
Answers
Answer:
D because I got it right
Answer:
D
Step-by-step explanation:
I took the quiz :)
Which ordered pair is a solution of 3x-y=7?
A. (3,4)
B. (1,-4)
C. (5,-3)
D. (-1,-2)
Answers
Answer:
i think the answer is A or D i think
A class has 7 boys and 10 girls. Select all associated ratios for this class
7:3
7:10
10:7
17:5
7:17
10:17
3.7
10:3
Answers
Answer:
10:17 (girls to total students)
7:17 (boys to total students)
10:7 (girls to boys)
7:10 (boys to girls)
Step-by-step explanation:
10:7
7:10 I think this is right