Mathematics High School

NEED HELP ASAP

Consider the following vectors in polar form.

|u| = 2 at ∠0°

|v| = 4 at ∠45°

What is the magnitude of vector w, if w = u – v?

|w| = 2.77
|w| = 2.95
|w| = 3.58
|w| = 5.60

Answers

Answer 1

Answer:

B 2.95

Step-by-step explanation:

NEED HELP ASAPConsider The Following Vectors In Polar Form.|u| = 2 At 0|v| = 4 At 45What Is The Magnitude
Answer 2

The magnitude of w is |w| = 2.95 , Option B is the correct answer.

What is a Vector ?

Any object that has both magnitude and direction is called a Vector.

It is given that

|u| = 2 at 0 degree

|v| = 4 at 45 degree

The magnitude of the vector w = | u -v| = ?

The resultant angle will be 45 degree

By applying Cosine law

w = | u -v| = [tex]\rm \sqrt { u^2 + v^2 - 2*u*v*cos \theta}[/tex]

w = | u -v| = [tex]\rm \sqrt { 2^2 + 4^2 - 2*2*4*cos 45^o}[/tex]

w = 2.947 = 2.95

Therefore the magnitude of w is |w| = 2.95 , Option B is the correct answer.

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Simplify
-8 - 6x – 5 + 2x

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-13 - 4x

Step-by-step explanation:

Find the surface area of a sphere with a radius of ²√² feet.

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Step-by-step explanation:

Remark

I'm going to take a guess that you mean

√2 for the radius.

Givens

r = √2

Area = 4 * pi * r^2

Solution

Area = 4 * 3.14 * (√2)^2

Area = 4 * 3.14 * 2

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Your slope is 2/3

Step-by-step explanation:

Rise/Run

=2/3

What is the slope for this problem?

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Which option will result in the most exercise per day?

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60 minutes is a
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60 minutes is an hour , you haven't given out what the 15, 30 and 60 are , and the 1 , 2 and 4 are(minutes or hours?)

~A line at Busch Gardens moves 25 feet every 8 minutes. How long will it take to reach the ride entrance 300 feet away?

Answers

Answer:

Step-by-step explanation:

45

Step-by-step explanation:

3x+x=180

4x=180

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Step-by-step explanation:

25 feet for 8 mins

300/25=12

8*12=96

The line will move to 300 feet in 96 mins

The balance of a loan is $2,570 in January, and the monthly payment is $125.50. The relationship between the loan balance, y, and the number of monthly payments made since January, x, can be represented by the equation y = 2,570 - 125.50x. In what months does the loan balance, y, meet the condition, $1,600 < y < $2,000? January February March April May June July August September October November December

Answers

Answer:

600<2570-125.5x<2000  subtract 2570 from all terms...

-970<-125.5x<-570  divide all terms by -125.5 (and reverse signs because of division by a negative!)

7.73>x>4.54  and x is months since January, and since months can only be integers...

x=[5,7]

So January + 5, 6, and 7 respectively are the three months that satisfy the equation...

June, July, and August.

Step-by-step explanation:

Which of the following is a valid conclusion based on the given argument?
If 2x + 3 = 13, then x = 5.​

Answers

Answer:

Given that x=5, when we substitute in 5 for 2x + 3 = 13, the equation will turn out to be true.

Step-by-step explanation:

2x + 3 = 13       x=5

2(5)+3=13

10+3=13

13=13

2x + 3 = 13

x=5

2(5)+3=13

10+3=13

13=13

use the coordinates of the labeled point to find a point-slope equation of the line.

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Answer:

the answer is D

Step-by-step explanation:

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Answer:

-4.9

Step-by-step explanation:

The intervals are by 0.1 because in the lenght of 0.5, there are five small lines. One line greater than 5 would be -4.9.  

Holly checked her answer to a division problem by estimating the quotient. Which is the best estimation of the quotient?

23.564 divided by 5.97
4
5
6
7

Answers

Answer: 4

Try just dividing 23/5 and you’d get 4 something. But since 5.97 is close to 6 you can also mentally divide 23/6 and get 3something (it’d be really close to 4)



Answer:

A 4

Step-by-step explanation:

Jack can long-jump 195% of his height with a running start. If Jack is 50 inches tall, how far can he long-jump?

Answers

Answer: 97.5 in

1.95 x 50 = 97.5

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What is Equation Modelling?

Equation modelling is the process of writing a mathematical verbal expression in the form of a mathematical expression for correct analysis, observations and results of the given problem.

We have Jack who can long-jump 195% of his height with a running start.

Assume that he can jump a height of [x] inches. So -

x = 195% of 50

x = (195/100) x 50

x = 97.5 inches

Therefore, Jack can jump upto 97.5 inches.

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A rectangle has a perimeter of 58 m and a length of 20 m. What is
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Answer:

9 meters

Step-by-step explanation:

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Answer:

Area of circle = 200.96 units²

Step-by-step explanation:

The formula to find the area of a circle is: πr², where r is the radius (which is half of the diameter)

So the diameter is 16 and of 16 is 8, which is the radius.

Sub it into the formula of a circle and you would get the area of a circle.

3.14 x 8²

Use calculator

Area of circle = 200.96 units²

Select the correct answer. Which statement is true about this equation? -9(x + 3) + 12 = -3(2x + 5) − 3x A. The equation has one solution, x = 1. B. The equation has one solution, x = 0. C. The equation has no solution. D. The equation has infinitely many solutions.

Answers

Answer:

its D

Step-by-step explanation:

-9(x + 3) + 12 = -3(2x + 5) − 3x

-9x-27+25 = -6x-15-3x

-9x-15 = -9x - 15

same on both sides

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To figure out which statement is true for equation -9(x + 3) + 12 = -3(2x + 5) − 3x.

What is simplification?

The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.

Here,
-9(x + 3) + 12 = -3(2x + 5) − 3x.
Simplification,
LHS
= -9(x + 3) + 12

= -9x -21 + 12
= -9x -9

RHS,
=  -3(2x + 5) − 3x
= -6x - 15 - 3x
= -9x - 15
Equation RHS and LHS,
-9x - 15 = -9x -9
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Thus, the equation has no solutions. Option C is correct.

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Answers

Answer:

100°

Step-by-step explanation:

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100° he is right you just need to subtract

6. If m∠COD=8x+13, m∠BOC=3x-10, and m∠BOD=12x-6, find m∠BOD

Answers

Answer:

Step-by-step explanation:

Given

m∠COD=8x+13,

m∠BOC=3x-10, and

m∠BOD=12x-6

The following addition property is true;

<BOD = <BOC + <COD

Substitute

12x-6 = 3x-10+8x+13

12x-6 = 11x+3

12x-11x = 3+6

x = 9

Get <BOD

<BOD = 12x-6

<BOD = 12(9)-6

<BOD = 108-6

<BOD = 102°

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Answers

Answer: 111, 113, 115 and 117.

Step-by-step explanation:

An online DVD rental site charges a monthly membership fee of $10,
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Answer:

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Step-by-step explanation:

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The slope is 50 because they charge $50 for each hour of labor. The slope represents how long they have worked for and what it costs. Also the y intercept is 500, so the equation is y=50x+500

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Answer:

a = 2b/c

Step-by-step explanation:

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(6^9·6^5)/ 6^15

Answers

Answer:

6^14/6^15 = 6^-1

So ummm wut s x+45=98 ?

Answers

Answer:

53

Step-by-step explanation:

x+45=98

solve for x

x+45=98

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x=53

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Answer:

Step-by-step

the slope is 1, 1

explanation:

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Answers

Answer:

The esitmated version of 5686 divided by 80 is 5680/80.

Step-by-step explanation:

Both numbers are compatible, and they round correctly.

Thank you hope this helped!

The length of a rectangle is 1 inch more than 2 times its width. the area of the rectangle is 36 suare inches. what is the lenght of the rectangle.

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Answer:

9

Step-by-step explanation:

Write this statement as a conditional statement in the form “if p, then q.”

The measure of an angle is 90 degrees. So, the angle is a right angle.

Answers

Answer:

if the measure of an angle is 90°, then the angle is a right angle.

Step-by-step explanation:

p=the measure of an angle is 90°

q=the angle is a right angle

p is the hypothesis of the conditional statement

q is the conclusion of the conditional statement

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Answer:

1 is congruent 2 is neither and 3 is similar

Step-by-step explanation:

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can someone do 1,3,4,8 and 9 pls

Answers

Answer:

See attached

Step-by-step explanation:

Attached graphs for 1, 3, 4, 8 and 9

Intersections marked on the graph, feel free to chose any additional point

3x^3 + 3ax +2ax^2 + 2a^2

Show work if possible. Thanks!

Answers

Answer:

(2a + 3x)(x^2 + a)

Step-by-step explanation:

Factor 3x3 +3ax+ 2ax^2 +2a^2

2ax^2 + 3x^3 + 2a^2 + 3ax

=(2a+3x)(x^2+a)

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