Answers
Answer:
See below for answers and explanations
Step-by-step explanation:
Problem 1
Here, [tex]\frac{3}{4}v[/tex] tells us that the vector [tex]v[/tex] is impacted by a scale factor of [tex]\frac{3}{4}[/tex], so we are doing scalar multiplication basically for both components of the vector. This only impacts the magnitude of the vector and not its direction. If we were to assume that [tex]v=\langle4,8\rangle[/tex], then [tex]\frac{3}{4}v=\langle\frac{3}{4}(4),\frac{3}{4}(8)\rangle=\langle3,6\rangle[/tex]. Therefore, this matches vector [tex]u[/tex], so D is the correct answer
Problem 2
Cannot be able to read as the text is too small
Problem 3
Cannot be able to read as the text is too small
Problem 4
[tex]-7u=\langle-7(8),-7(-4)\rangle=\langle-56,28\rangle=-56i+28j[/tex], so A is correct. Remember to use scalar multiplication for each component.
Problem 5
[tex]r-s=\langle5-9,11-(-8)\rangle=\langle-4,19\rangle[/tex], so B is correct. Remember to subtract the horizontal and vertical components seperately.
Related Questions
URGENT! WILL GIVE BRAINLY FOR CORRECT ANSWER
Draw the image of \triangle ABC triangle, A, B, C under a dilation whose center is P and scale factor is 2.
Answers
PLEASE PLEASE HELPPPPPPP WILL GIVE BRAINLY + POINTS
Modeling Mitosis and Meiosis
Table 1: Cell cycle and mitosis in fruit flies
Step Number of Cells Number of chromosomes in each nucleus Number of
homologous pairs in each nucleus
Interphase
Cytokinesis
Table 2: Cell cycle and mitosis in humans
Step Number of Cells Number of chromosomes in each nucleus Number of
homologous pairs in each nucleus
Interphase
Cytokinesis
Table 3: Meiosis
Step Number of cells Number of chromosomes in each cell Number of
homologous pairs in each cell Diploid or haploid number?
Start of Meiosis
End of Meiosis I
End of Meiosis II
Answers
Answer:
Amount of chromosones human have is 46
Step-by-step explanation:
23 from ur father 23 from your mother
I'm not sure i understand your questions though
here a subtraction problem that has been solved incorrectly for 44-16=28 choose the addition sentence that check this subtraction problem the choices are 28+16=32 28+44=72 28+16=44 which one is correct
Answers
Answer:
Answer:
28+16=44
Step-by-step explanation:
point of correction it has been solved correctly
when subtracting 44 - 16 it gives you 28
=> 44 - 16
=> 28
SO IN ORDER TO CHECK IF THE PROBLEM WAS SOLVE CORRECTLY
you will minus 28 from one of the numbers before the equal sign
the correct option is 28 + 16 equals to 44
=> 28+16=44
Peter is the owner of a hotel. He has found that when he charges the nightly cost of $139, the average occupancy is 275. In addition, Peter has found that with every $10 increase in the average nightly cost, the hotel occupancy decreases by an average of 22.
Which of the following functions describes the hotel's profit in terms of x, the number of $10 increases over $139?
Answers
Answer:
Without price increase, Cost/night = $119
Average occupancy = 372 The revenue will be 119*372 = $44,268
For every $15 price increase, the occupancy decreases by 25. Therefore with x price increases, The revenue will be $(119 + 15x)*(372 25x)
Cost/night = $119 + 15x Occupancy = 372 - 25x
Answer:
The nightly cost with x $15 price increases is $119 + 15x.
2. An expression is shown below.
2V43x
Which value of x makes the expression
equivalent to 14V43?
A.7
B.12
C.49
D.98
Answers
thirty two thousand six hundred and sixty seven in numbers
Answers
Answer:
32,667
30,000+2,000+600+60+7
Hello can someone please answer this question i will mark you the Brainliest
Answers
Answer:
155 cm2
Step-by-step explanation:
Every morning Jessica drinks one fifth of a quart of orange juice how many mornings would Jaze have oranges for if she only has a total of one and 4/5 quarts of orange juice
Answers
Answer:
9 more mornings Jessica can drink orange juice
Step-by-step explanation:
1 4/5 = 1/5x
9/5 = 1/5 (divided below)
1/5 1/5
9/5 divided 1/5 = x
x = 9/5 x 5/1 = 45/5
45/5 divide by 5 = 9/1
long division and you get 9
hope this helps!
Answer:
The answer is 9
Step-by-step explanation:
Use the circle below to answer the question.
Q
R
680
Р
C
S
The Circle is centered at point C. Line segment PQ is parallel to SR.
What is the measure of angle QPS?
Answers
The measure of angle QPS in circle C is 112°
What is a circle?
A circle is the locus of a point such that its distance from a fixed point known as the circle center is always constant. The sum of angles in a circle is 360 degrees.
From the circle:
PQ is parallel to SR, hence: ∠PQR + ∠QRS = 180°
∠PQR + 68 = 180
∠PQR = 112°
Also, PS = QR (from the endpoint of the diameter), hence:
∠QPS = ∠PQR = 112°
The measure of angle QPS in circle C is 112°
Find out more on circle at: https://brainly.com/question/24375372
whats a^2=4/25 in square root form
Answers
Answer:
a = ± [tex]\sqrt{\frac{4}{25} }[/tex]
Step-by-step explanation:
[tex]a^{2} =\frac{4}{25}[/tex]
[tex]\sqrt{a^{2} } =\sqrt{\frac{4}{25} } \\|a|=\sqrt{\frac{4}{25} \\[/tex]
a = ± [tex]\sqrt{\frac{4}{25} }[/tex]
NO LINKS!!! Solve each triangle. Part 1a
Answers
Answer:
13) C= 95°, a= 0.157, c= 9.86
14) C= 165°, a= 3.35, b= 1.68
15) A= 40°, a= 2, c= 3.06
16) C= 50°, a= 11.8, c= 9.19
Step-by-step explanation:
Please see the attached pictures for the full solution.
Note:
sine rule
[tex] \textcolor{steelblue}{\boxed{{\frac{ \sin A}{a} = \frac{ \sin B }{b} = \frac{ \sin C}{c} }}}[/tex]
∠ sum of ∆
The sum of the angles in a triangle is 180°.
What does this image show? A) How to add. B) Information about exponential notation. C) Bow to multiply and divide. Will Mark Brainliest if answered correctly.
Answers
Answer:
B) Information about exponential notation
Step-by-step explanation:
The information on the page is about exponential notation, therefore option (B) is the most suitable.
How do you write 48,600,000 in scientific notation?
Answers
Answer:
4.86·10⁷
Step-by-step explanation:
Answer:
4.86 x10^7
Step-by-step explanation:
1. Must be between 1 and 10, the number cannot be 10.
2. Count decimal places to get to the dot.
3. That will be the power at the top of the 10.
4. If number is small, that power will be negative, but positive if number is big. E.g. 0.0001 (small) & 10000 (big)
4.86 x10^7
Hope this helps!
How do you simplify without using a calculator (-5)(7)+4×5
Answers
Answer:
-15 Is the answer
Step-by-step explanation:
(-5)(7)+4×5
= -15
(-5)(7) + 4×5 = -15/1 = -15
Multiple: -5 * 7 = -35
Multiple: 4 * 5 = 20
Add: the result of step No. 1 + the result of step No. 2 = -35 + 20 = -15
Hope this helps.
Add and Subtract Decimals
Use the models to solve each equation. Match the letter of each
problem to the corresponding space below to answer the following
riddle.
The more of them you take, the more you leave behind.
What are they?
Answers
There are no pictures provided.
( Talking about the models )
help me please I need it quick
Answers
Answer:
it's f(n)= 2n^2+1
Step-by-step explanation:
the blocks are shaped 3,8,15 boxes
because 8-3= 5 and 15-8=7
so there's an addition of 2
Question: find an equation of a parabola that satisfies the given condition
Problem: horizontal axis; vertex (-1,2) passing through (2,3)
Answers
Explanation:
Given
Vertex (-1,2) and passes (2,3)
The General equation of a parabola is
y = a(x - h)^2 + k
So, y = a(x+1)^2 +2
still now we need to find (a)
by the second point (2,3)
we have 3=a(2+1)^2 + 2
3= 9a +2
a = 1/9
Therefore the final answer is
y = 1/9(x + 1)^2 +2
Good Luck.
3(x-6)-8x+-2+5(2x +1)
Answers
Answer:
See below.
Step-by-step explanation:
3x-18-8x-2+10x+5
Combine like terms.
3x-8x+10x
5x
-18-2+5
-15
5x-15
-hope it helps
You invest 1,000 in one account and 4,000 in another, both accounts have the same interest rate over the same amount of time. How will the interest earned compare?
Answers
Answer:
the $4000 WILL EARN 4 TIMES THE AMOUNT OF INTEREST.
Step-by-step explanation:
If both investments have same interest they will grow in the same proportion that the initial amount have.
Which of the following functions has an initial value of 0 and a rate of change of 3?
Answers
The following function has an initial value of 0 and a rate of change of 3 will be y = 3x and it is shown in option (D) hence option (D) will be the correct answer.
How to graph a function?Drawing the graph of the appropriate function is the process of graphing a function.
Graphing simple functions like linear, quadratic, etc. is fairly easy, complex functions like rational, exponential, etc. require some skill and comprehension of certain mathematical thinking.
In other words graph of a function is a grammatical representation in the coordinate geometry.
Given that the function has a rate of change as 3
We know the rate of change is nothing but derivative so
dy\dx = 3
dy = 3dx
by integration
y = 3x + c now given that the initial value is zero so by putting x and y as 0.
c = 0
So the function is y = 3x so it is That the option (D) has the same behavior.
For more information about the graph of a function
https://brainly.com/question/27757761
#SPJ2
As Program Director of a Radio Station, you receive a report from an independent service that shows that out of 100 songs played, the same song was played 7 times. Using the Empirical Approach, calculate the probability that song will be played next.
Answers
Using an Empirical approach and the probability concept, it is found that there is a 7% probability that song will be played next.
What is a probability?A probability is given by the number of desired outcomes divided by the number of total outcomes. Using an Empirical approach, these number of outcomes are taken from previous trials.
In this problem, considering the previous 100 songs, the same song was played 7 times, hence:
p = 7/100 = 0.07.
There is a 7% probability that song will be played next.
More can be learned about probabilities at https://brainly.com/question/14398287
An instructor wants to create a test that has true-false questions, multiple-choice questions,
and essay questions. He wants the test to have 35 questions, with twice as many multiple-choice
questions as essay questions and with twice as many true-false questions as multiple-choice
questions.
(i). Write a system of equations to represent this problem.
(ii). Hence or otherwise, determine how many of each type of question should the
instructor put on the test?
Answers
Let x = multiple choice, y = true/false, z = essay
(i)
where: x + y + z = 35
We need to solve for y first, in order to know how many essay questions there are, since that is our base.
y + 2y + 4y = 35
(ii)
Now to solve:
y + 2y + 4y = 35
7y = 35
[tex]\frac{7y}{y} = \frac{35}{7}[/tex]
y = 5
Therefore, there are 5 essay questions, 10 multiple choice questions, and 20 true/false questions.
10 + 5 + 20 = 35
The equation of the system will be x + y + z = 35 and the number of each type of question should the instructor put on the test will be 5.
What is the linear system?A Linear system is a system in which the degree of the variable in the equation is one. It may contain one, two, or more than two variables.
An instructor wants to create a test that has true-false questions, multiple-choice questions, and essay questions.
Let x be the number of essay questions.
Let y be the number of multiple-choice questions.
Let z be the number of true-false questions.
He wants the test to have 35 questions, with twice as many multiple-choice questions as essay questions and with twice as many true-false questions as multiple-choice questions.
x = 2y
z = 4y
1. Then the equation of the system will be
x + y + z = 35
Then we have
2. Then the number of each type of question should the instructor put on the test will be
y + 2y + 4y = 35
y = 5
More about the linear system link is given below.
https://brainly.com/question/20379472
Do not know what the problem is meaning
Answers
Answer:
its b
Step-by-step explanation:
Which equation, when solved, results in a different value of x than the other three?
8.3=−0.6x+11.3
8 point 3 is equal to negative 0 point 6 x plus 11 point 3
11.3=8.3+0.6x
11 point 3 is equal to 8 point 3 plus 0 point 6 x
11.3−0.6x=8.3
11 point 3 minus 0 point 6 x is equal to 8 point 3
8.3−0.6x=11.3
8 point 3 minus 0 point 6 x is equal to 11 point 3
Answers
Answer:
i think it might be c
Step-by-step explanation:
tell me if its wrong or not and brain list please
Find tan(a-b)
sin a=4/5
tan b=3/4
Give the exact answer, not a decimal approximation.
Answers
Answer: 0.2916666665
Step-by-step explanation:
Answer:
[tex]\frac{7}{24}[/tex]
Step-by-step explanation:
By the Pythagorean Theorem, we know
[tex]\cos^2a=1-\sin^2a[/tex].
With this, we can find [tex]\cos a[/tex] by plugging in what we know for [tex]\sin a[/tex]:
[tex]\cos^2a=1-(\frac{4}{5})^2\\~~~~~~~~=1-\frac{16}{25}\\~~~~~~~~=\frac{9}{25}[/tex].
Taking the square root, we get
[tex]\cos a=\frac{3}{5}[/tex] .
Note: there seems to be a problem with the question? It doesn't specify what range [tex]a[/tex] lies in, so we don't know whether [tex]\cos a[/tex] is positive or negative. In this case, I assumed it was positive.
From this, we can find [tex]\tan a[/tex]:
[tex]\tan a=\frac{\sin a}{\cos a}\\~~~~~~~=\dfrac{\frac{4}{5}}{\frac{3}{5}},[/tex]
so [tex]\tan a=\frac{4}{3}[/tex].
Using the [tex]\tan[/tex] difference formula, we know
[tex]\tan (a-b)=\dfrac{\tan a -\tan b}{1+\tan a\tan b}[/tex] .
Plugging in the values we know for [tex]\tan a[/tex] and [tex]\tan b[/tex], we get
[tex]\tan(a-b)=\dfrac{\frac{4}{3}-\frac{3}{4}}{1+\frac{4}{3}\cdot\frac{3}{4}}\\~~~~~~~~~~~~~~=\dfrac{\frac{7}{12}}{1+1}\\~~~~~~~~~~~~~~=\boxed{\frac{7}{24}}~.[/tex]
Erin was not feeling well. She knows a normal temperature
is 98.6°F. Her temperature is 98.6°F.Write an equation that compares her temperature. and normal
temperature
Name the property represented by the equation.
Answers
Answer:
Reflexive property of equality
Step-by-step explanation:
98.6 = 98.6
helppp please please helpppp
Answers
Explanation i just know
determine the equation of a line that is parallel to the line 2x-3y=12 and passes through the point with coordinates (9,0)
Answers
Answer:
5x + 24y =45. (9,0)
5×9 +24×0 = 45
45 =45
Please mark my answer the brainliest and rate me 5 star and follow me .please please please please please please
Help with number 4 please
Answers
48 boards
Step-by-step explanation:
length of a board = 5½ in = 11/2
Total length should be covered = 22 ft = 264 in (1ft = 12in)
total boards needed = 264 ÷11/2
= 264 × 2/11
= 24 ×2
= 48 boards
Please mark my answer the brainliest and rate me 5 star and follow meplease please please please please please
The Jackson family drink 4.5 liters of milk each week. If they continue to drink milk at the same rate, how long will it take the Jackson family to drink 49.5 liters of milk?
Answers
It would take the Jackson family 11 weeks to drink 49.5 liters of milk.