The terminal side of θ passes through the point (10, 6). What is the exact value of cos θ in simplified form?

Answers

Answer 1

Answer:

[tex]\frac{5\sqrt{34}}{34}[/tex]

Step-by-step explanation:

The formula for cos θ is a/r. A is the first number (10) and b is the second number (6). R is the hypoteneuse which can be found through r = [tex]\sqrt{a^{2} + b^{2} }[/tex].

In the equation you'd write that as r = [tex]\sqrt{10^{2} + 6^{2}[/tex] which can be simplified to [tex]\sqrt{136[/tex].

You end up with [tex]\frac{10}{\sqrt{136} }[/tex] and you simplify this by doing [tex]\frac{10 }{\sqrt{136} } * \frac{\sqrt{136} }{\sqrt{136} }[/tex], ending with the result of [tex]\frac{5\sqrt{34}}{\sqrt{34} }[/tex].

(I also got this answer right on the test.)


Related Questions

A circle has radius 26cm and length of it's chord is 48cm.find how far is the chord from the center of the circle?​

Answers

Answer:

The chord is 10cm from the center of the circle

Step-by-step explanation:

Here, we want to find the distance of the chord from the center of the circle

A line from the center to the chord will

divide the chord into two parts

each will have a measure of 48/2 = 24 cm

So now we have a right/angled triangle with hypotenuse of 26

To find the height, we use Pythagoras’ theorem which states that the sum of the squares of the other sides equal the square of hypotenuse

h ^2 + 24^2 = 26^2

h^2 = (26-24)(26+24)

h^2 = 100

h = square root of 100, which is 10

Number 2 need answers

Answers

Answer:

-4

Step-by-step explanation:

when the signs are different the result is negative

(+ )*( - )= ( -)

please answer ASAP for brainliest

Answers

acute and acute

less then 90 degrees

HELP!!!!! thank you..

Answers

Answer:

D

Step-by-step explanation:

PLEASE MARK ME BRAINLIEST PLEASE MARK ME BRAINLIEST PLEASE MARK ME BRAINLIEST PLEASE MARK ME BRAINLIEST PLEASE MARK ME BRAINLIEST PLEASE MARK ME BRAINLIEST PLEASE MARK ME BRAINLIEST PLEASE MARK ME BRAINLIEST PLEASE MARK ME BRAINLIEST PLEASE MARK ME BRAINLIEST PLEASE MARK ME BRAINLIEST PLEASE MARK ME BRAINLIEST PLEASE MARK ME BRAINLIEST

Answer: Choice D

The outcomes for 2 spins of a spinner with 3 sections that are numbered 1 to 3

====================================================

Explanation:

The three sections {1,2,3} are shown as the three branches for each level. There are 2 levels total. Each of the 2 levels represents a different spin. Each branch of a certain spin would then be followed to generate the outcome.

For instance, if you spin a "2" on the first spin, then you'll follow the middle branch in the upper level. If you spin a "3" on the second spin, then you'll follow the "3" branch on the lower level. Refer to the diagram below.

2 × (5 + 5)

Which of the following describes (5 + 5) in the expression above?

Answers

Answer:

20

Step-by-step explanation:

the answer your looking for is 20

A triangle has the sides of 7ft, and 10ft. Determine what the rang would be for the third side of the triangle ??

Answers

Answer:

3 < x < 17

Step-by-step explanation:

Given 2 sides of a triangle then the third side x is

difference of 2 sides < x < sum of 2 sides , that is

10 - 7 < x < 10 + 7

3 < x < 17 ← is the range of values for the third side

solve: 4=2(x+3) please help me with this, thank you​

Answers

Answer:

x=-1

Step-by-step explanation:

4 = 2(x+3)

4 = 2x + 6

- 6 = 2x - 6

-2 = 2x

-1 = x

Good luck!

4=2x + 6
4-6=2x
-2=2x
-2/2=2x/2
-1=x
X=-1

Evaluate the expression:

v ⋅ w

Given the vectors:

r = (8, 8, -6); v = (3, -8, -3); w = (-4, -2, -6)

Answers

Answer:

vw= 22

Step-by-step explanation:

To find the dot product of vw, multiply the corresponding numbers and add them.

v= <3, -8, -3> w= <-4, -2, -6>

vw= (3*-4)+(-8*-2)+(-3*-6)

vw= -12+16+18

vw= 4+18

vw= 22

what is -r + 6 + 8r – 14 pls answer quickly

Answers

Answer:

Answer:

=7r−8

Step-by-step explanation:

−r+6+8r−14

=−r+6+8r+−14

Combine Like Terms:

=−r+6+8r+−14

=(−r+8r)+(6+−14)

=7r−8

Answer:

-8+7r

Step-by-step explanation:

-r+6+8r-14

find like terms

-r and 8r

6 and -14

combine them

8r-r=7r

6-14=-8

-8+7r

What is the intermediate step in the form (x + a)2 = b as a result of completing the
square for the following equation?
x2 + 34 = 10x

Answers

Answer:

So the intermediate step in question is (x - 10)² = 66

Step-by-step explanation:

Let's find out:

x² + 34 = 10x

x² - 10x = -34

x² - 20x + 100 = 66

(x - 10)² = 66

x - 10 = ± √66

x = 10  ± √66

x ≈ 18.12, 1.88

Answer:

(x-5)^2=

(x−5)

2

=

\,\,-9

−9

Step-by-step explanation:

.

Which of the following equations represents the line graphed below?
4x - 3y = 6
А
B
4x + 3y = 6
С
4x - 3y = -6
D
4x + 3y = -6

Answers

Answer:

I think A not sure

Step-by-step explanation:

.... ...........

im solving variables -4y + 7 = -10y+37

Answers

Answer:

5

Step-by-step explanation:

move the terms

collect like terms

calculate

divide both side

Answer: y = 5

Step-by-step explanation:

(step 1) -4y + 7+ 10y = -10y + 37 + 10y

6y + 7 = 37

(step 2) 6y + 7 - 7= 37 - 7

6y = 30

(step 3) Divided both sides by 6.

6y/6 = 30/6

so the answer is y = 5

The stem and leaf diagram below gives information about the ages of people in
a bowling club.
3 3 5 8
4 1 2 5 5 6 9
5 3 4 6 6 8
Key: 3/3 represents 33 years old
6 2 8 8 8
Find the range of these ages.

Answers

I may be wrong but 5-8 years old

Somebody please help me. This makes zero sense.

Answers

Answer:

d

Step-by-step explanation:

rearrange it like an equation.

take everything else out of the middle apart from x.

make sure that what you do to the middle you do to both sides

4x – 20 = -18
Can you help me with this

Answers

Answer:

34

Step-by-step explanation:

23+11

Answer:

.5

Step-by-step explanation:

4x - 20 = -18

    +20 = +20

      4x = + 2

      /4  = 2/4

       x = .5  or 1/2

I hope this helped!

Sarah and Andrew went hiking in the mountains. They climbed from an elevation of 3,540 feet to 6,885 feet. What was the difference in elevation that they climbed?

Answers

Answer:

3345

Step-by-step explanation:

6885-3540

Rosie weighed 7 pounds (lb.) 11 ounces (oz) when she was born. Linda weighed 8 lb. 10 oz when she was born. What is the total weight of these girls when they were born?

Answers

The total weight of Rosie and Linda when they were born will be equal to 15 pounds 21 ounces.

What are arithmetic operations?

The four basic operations of arithmetic can be used to add, subtract, multiply, or divide two or even more quantities.

They cover topics like the study of integers and the order of operations, which are relevant to all other areas of mathematics including algebra, data processing, and geometry.

As per the given data in the question,

Weight of Rosie when she was born = 7 pounds 11 ounces

Weight of Linda when she was born = 8 pounds 10 ounces

Then, the total weight of these two will be,

= 7 pounds 11 ounces + 8 pounds 10 ounces

= 15 pounds 21 ounces

To know more about arithmetic operations:

https://brainly.com/question/13585407

#SPJ5


Please help I am stuck on this

Answers

Answer:

the box by the yellow is 26, bottom is 14, and middle is 25 I think.

Step-by-step explanation:

The weight of an object on earth varies directly as the weight of the same object on the moon. A 300- pound object on earth would weight 48 pounds on the moon. How much would a 65-pound object weight on the moon?

Answers

Answer: 10.4 pounds

Step-by-step explanation:

In this case, we have to calculate the constant of proportionality. This can easily be gotten as:

300/48 = 6.25

Therefore, the weight of a 65-pound object weight on the moon will be:

= 65/6.25

= 10.4 pounds

Dear maths grow up and start solving your problems I'm tired of solving them for you.​

Answers

Answer:

This is what brainly is for tho

Step-by-step explanation:

the value of 2 in 204.75 is how many times the value of 2 in 103.52​

Answers

It would be 10000 times

Answer:

1000.

Step-by-step explanation:

The Value of the 2 in 204.75, is 200.

The Value of the 2 in 103.52 is 0.02.

So to make the 0.02 become 200, you have to move the decimal point 3 spaces to the right.

Therefore, the 2 in 204.75 is 1000 times greater than the value of the 2 in 103.52.

I hope this helps!

when y=5 what is 4(y+3)

Answers

Answer:

32

Step-by-step explanation:

4(5+3)=

20+12=

32

or

4(5+3)=

4(8)=

32

The answer is 32.

5 + 3 is 8, and since the 8 is in parenthesis, we multiply it by the 4 on the outside.

what is the answer to d - 4 = 8.7

Answers

Answer:

the answer is 12.7, you add four plus 8.7

Answer:

d-4=8.7

d=8.7+4

=12.7...........

A new car is purchased for $32,500. The car depreciates every year ata
rate of 14%. Write an exponential function that represents that situation

Answers

Answer:

[tex]y=32500(0.86)^{x}[/tex]

Step-by-step explanation:

General exponentially depreciating function is given as

[tex]y= a(1-b)^{x}[/tex]------------(1)

Where a is initial value, b is percent depreciation/unit time  and x is time

Here

[tex]a=32,500 \ \ \ b=0.14 \ \ \ and \ \ x \ is \ time \ in \ years[/tex]

Substituting above values in equation (1)

[tex]y=32500(0.86)^{x}[/tex]

At x=0

[tex]y=32500(0.86)^{0}\\y=32500[/tex]

At x=1

[tex]y=32500(0.86)^{1} \\y=27950[/tex]

2b + 23 = 5b - 112 solved

Answers

Answer: b= 45

Step-by-step explanation:

Step 1: Subtract 5b from both sides.

2b+23−5b=5b−112−5b

−3b+23=−112

Step 2: Subtract 23 from both sides.

−3b+23−23=−112−23

−3b=−135

Step 3: Divide both sides by -3.

−3b /-3 = -135/-3

What is the x-coordinate of the point that can be plotted on the graph between (6, 2) and (12, 4) that is part of this set of equivalent ratios? Choose the point which has integer values for x and y.

On a coordinate plane, the points (3, 1), (6, 2), and (12, 4) are plotted.

Answers

Answer:

I believe the answer is (9, 3)

Step-by-step explanation:

x axis: |  3  |  6  | 9  |  12 |  etc. |

y axis: |  1  |  2  |  3  |  4  |  etc. |

Answer:

(9,3)

Step-by-step explanation:

-_-

A punch recipe requires 4 cups of crandberry juice to make 5 gallons of punch. Using the same recipe, what is the amount of crandberry juice needed for 1 gallon of punch?

Answers

Answer:

4/5 cups

Step-by-step explanation:

Given :

A punch requires ;

4 cups of crandbarry juice = 5 gallons of punch

Thus number of cups of cranberry required to make1 gallon of punch = x

4 cups = 5 gallon

x cups = 1 gallon

Cross multiply

5x = 4

x = 4/5

Thus 4/5 cups of crandberrey is required to make 1 gallon of punch

Find the values of x.

Answers

Answer:

x = 8

Step-by-step explanation:

Using the exterior angle theorem, we know that y = 90 + 6x, and y also equals  180-(5x+2)

So we can write an equality statement

90+6x=180-(5x+2)

Open parenethesis

90+6x=180-5x-2

Same to both sides

6x = 88 - 5x

11x = 88

x=8

Check work:

11x + 2 = 90

88+2 = 90

90 does equal 90.

Let me know if you have any questions

Please answer correctlyyyyyyy

Answers

Answer: Choice C

x intercept is (4,0)

y intercept is (0,2)

=======================================================

Work Shown:

To find the x intercept, we plug in y = 0 and solve for x

2x+4y = 8

2x+4(0) = 8

2x+0 = 8

2x = 8

x = 8/2

x = 4

We have x = 4 pair up with y = 0. So we have (x,y) = (4,0) as the x intercept.

This is the location where the graph crosses the x axis.

--------------

The y intercept is a similar story, but we use x = 0 to find y.

2x+4y = 8

2(0)+4y = 8

0+4y = 8

4y = 8

y = 8/4

y = 2

The value x = 0 leads to y = 2. This gets us (x,y) = (0,2) as the y intercept.

This is the location where the graph crosses the y axis.

Please help me, big points <3

Answers

here is the answer simple as that

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