If a vector A⃗ has the following components, use trigonometry to find its magnitude and the counterclockwise angle it makes with the +x axis: Ax = 9.00lb , Ay = 5.00lb

Answers

Answer 1
Answer:

The vector magnitude is 10.29lb and the vector direction is 150.9⁰.

Vector:

As per the given question:

Ay = 5.00 \ lb\n\nAx = 9.00 \ lb\n\n

To find:

magnitude and direction=?

Solution:

Vector representation of the given value:

\to (9i + 5j)

Calculating the vector magnitude:

\to √((9)^2 +(5)^2)\n\n \to √(81+25)\n\n \to √(106) \n\n\to 10.29 \ lb

Calculating the vector direction:

When 90 < \theta < 180

Let's solve the value for \theta\n\n

\tan \theta = (y)/(x)\n\n\tan \theta = (5)/(9)\n\n\tan \theta =0.555\n\n\theta = \tan^(-1)(0.555555556) \n\n\theta= 29.1^(\circ)\n\n

\sin \theta lies in the second quadrant,

\to \theta  = 29.1^(\circ) = 180 -29.1 = 150.9^(\circ)\n\n

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If Sean knows the slope of the line is 4 in the line passes through the point (1, negative 8 princesses, which equation should he use to find the Y intercept and what is the y-intercept of the line

What is the value of x?

Answers

Answer:

x=70

Step-by-step explanation:

Since they are supplementary angles (180°)

45° + (2x-5)° = 180°

(2x-5)° = 180° - 45°

(2x-5)° = 135°

2x° = 135° + 5°

2x° = 140°

x° = 140/2°

x° = 70°

Since they are supplementary angles (180°)

45° + (2x-5)° = 180°

(2x-5)° = 180° - 45°

(2x-5)° = 135°

2x° = 135° - 5°

2x° = 130°

x° = 130/2°

x° = 65°



82.2756 rounded to the nearest penny

Answers

Answer:

i think it's 82

Step-by-step explanation:

Final answer:

To round 82.2756 to the nearest penny, we should focus on the hundredth place. With the next digit being 5 or above, we round up the original hundredth place. Hence, 82.2756 becomes 82.28.

Explanation:

In Mathematics, rounding numbers is a process that simplifies numbers to their nearest place values. To round 82.2756 to the nearest penny, we focus on the two decimal places, because a penny denotes the hundredth place in decimal terms.

We therefore look at the third decimal place (5). Since this value is five or more, we round up the number in the second decimal place (7) by 1, thus making it 8.

Therefore, 82.2756 rounded to the nearest penny becomes 82.28.

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Find an equation in standard form for the hyperbola with vertices at (0, ±10) and asymptotes at y=+- 5/4x.

Answers

Answer:

Step-by-step explanation:

Given that vertex of the hyperbola is

(0,10) and(0,-10)

Hence the hyperbola will have equation of the form

(y^2)/(a^2) -(x^2)/(b^2) =1

Since vertex has y coordinate as 10, we have a =10

So equation would be(y^2)/(10^2) -(x^2)/(b^2) =1

Since asymptotes are y =±5x/4

we have equation of both asymptotes is

y^2-(25x^2)/(16) =0\ny^2/25-x^2/16 =0\ny^2/100-x^2/64 =0

Since hyperbola will have equations same as asymptotes except with difference of constant terms as 1 instead of 0, we have

equation as

(y^2)/(100) -(x^2)/(64) =1

The equation of this hyperbola in standard form:
y² / a² + x² / b² = 1.
y = +/- a/b x
a / b = 5 / 4
a = 10
10 / b = 5 / 4
b = (10 · 4) : 5
b = 8
Answer:
The equation of the hyperbola is:
y² / 100 - x²/ 64 = 1

The gcf of 135 225 270

Answers

The greatest common factor of 135 225 and 270 is 135/225 = 3/5

hope you found this helpful ;)

The GCF of 135, 225, and 270 is 45.

The GCF (Greatest Common Factor) is the largest number that divides evenly into two or more numbers. To find the GCF of 135, 225, and 270, we need to find the common factors of the three numbers and choose the largest one.

The factors of 135 are: 1, 3, 5, 9, 15, 27, 45, 135.

The factors of 225 are: 1, 3, 5, 9, 15, 25, 45, 75, 225.

The factors of 270 are: 1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 135, 270.

The common factors of 135, 225, and 270 are: 1, 3, 5, 9, 15, 45.

The largest common factor is 45. So, the GCF of 135, 225, and 270 is 45.

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Write an expression for the total cost, in pounds, of: X jumpers at £15 each and y shirts at £12 each

Answers

x jumpers at £15 each.    Total = 15*x = £15x

y shirts at £12 each.    Total = 12*y = £12y

Total cost  =
£15x + £12y

Total cost = 
£(15x + 12y)

Final answer:

The total cost, in pounds, for X jumpers at £15 each and Y shirts at £12 each can be written as the mathematical expression: 15X + 12Y, where X and Y are the quantities of jumpers and shirts respectively.

Explanation:

To write an expression for the total cost of X jumpers at £15 each and Y shirts at £12 each in pounds, you need to multiply the cost per item by the quantity of each items and then add these two products together.

So, the total cost can be given as:

15X + 12Y

where

  • X represents the number of jumpers
  • Y represents the number of shirts

In this expression, '15X' stands for the total cost of the jumpers and '12Y' stands for the total cost of the shirts.

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What line forms when a plane and a cylinder intersect?

Answers

If the plane and the cylinder intersect perpendicular to each other, then the resulting line will form a circle. It the cylinder and the plane intersect horizontally to each other, the resulting line will form a rectangular prism.
Hope that helped =)