A javelin thrower is running at 7mph and throws her javelin at 18mph at an angle of 13o with the horizontal. Determine the resultant speed and direction of the javelin. i need the magnitude and the direction !!! HELP WILL MARK BRALIEST

Answers

Answer 1
Will I get any points?
Answer 2

Magnitude: 24.93 mph

Direction: 9.37°

A javelin thrower throws her javelin at an angle of 13o

cos13°=v1/18

v1=cos13° * 18= 17.54mph

v=v1+7

   17.54+7=24.54 mph

sin13°=v2/18

v2=sin13° * 18= 4.05mph

tan ∅ =v2/v=0.165

∅ =9.37°

cos ∅ =v/v3

v3=24.54/cos 9.37=24.93

What is the formula for resultant speed?

Multiply the acceleration by the time the object is being accelerated. For example, if an object falls for 3 seconds, multiply 3 by 9.8 meters per second squared, which is the acceleration from gravity. The resultant velocity in this case is 29.4 meters per second.

How do you find the resultant direction?

join the tail of the first vector with the second vector's head and put the arrowhead. To determine the magnitude, measure the length of the resultant R, and find out the direction.

Learn more about resultant force:https://brainly.com/question/14626208

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Step-by-step explanation:

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What is the length of leg s in the right triangle shown?

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Answer:

D. 5

Step-by-step explanation:

Applying,

cos∅ = adjacent/Hypotenuse

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Answer:

is the clean area the desired one (I assume, yes)?

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the factor of x is the slope of the line expressed as y/x ratio.

clearly, the line shows that for x changing by 1 unit y changes by 3 units. so, the slope is 3/1.

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A system of equations consisting of a circle and a line is graphed. Which statements about the number of possible solutions are correct? Check all that apply.
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Answers

Answer:

the solution is where the two objects intersect ...

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2) a line can "kiss" the circle at one point (one solution)

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three check comments are true

Step-by-step explanation:

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Step-by-step explanation:

volume of the sphere=4/3×π×r³

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a container of water is filled to 1/3 of it. if we add 2.5 liters the container will be half full. find how much is the volume of the container. convert it to cm³​

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Answer:

In picture

Step-by-step explanation:

Brainliest please

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ah, i’ve seen this one before. this answer is no no idea why you gotta get a chance and i’m you to go pick it out to get your stuff back on your car wash the car and stuff and you get your hair and get it done and you get a little more comfortable with your car and you get a hold on you like that one or a little bit more and stuff and like move you

What is the product?

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Answer:

Step-by-step explanation:

You can do this in two steps.

4s * (5s^2 + 10s + 3)                   Remove the brackets

20s^3 + 40s^2 + 12 s

2(5s^2 + 10s + 3)  

10s^2 + 20s + 6

Now add them

20s^3 + 40s^2 + 12s + 10s^2 + 20s + 6

Rearrange them so the like terms are together.

20s^3 + 40s^2 + 10s^2 +12s + 20s + 6

20s^3 + 50s^2 + 32s + 6

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Answer: (a)

Step-by-step explanation:

Given

[tex]g(x)=x^2[/tex]

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Checking the option which is 3 units below and multiplying by a factor

option (a) is meeting both the cirterias.

find x if the mean of the number is 13 ,2x,0,5x,11 and 9

Answers

Answer:

45/7

Step-by-step explanation:

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Answers

Answer:

f(4) = 9

Step-by-step explanation:

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Answer:

Pretty sure its A

Step-by-step explanation:

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3 in.
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3 in.
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Answer:

l think he used three which is the diameter as the radius instead of dividing it by two................

Find the value of x.

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Answer:

Step-by-step explanation:

When two chords intersect inside the circle, the product of their segments are equal.

BE * ED = AE * EC

x *3x = 4 *3

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Answer:

The value of x is 2.

Step-by-step explanation:

We know that , when the two chords are intersect inside the circle, the product of their segment are equal.

So, BE × ED = AE × EC

putting the values

x × 3x = 4 × 3

multiply the values

3 x ² = 12

divide 12 by 3

x ² = 12 / 3

x ² = 4

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Check out this square pyramid: Find the surface area of the square pyramid (above) using its net (below).

Answers

Answer:

12 square units

Step-by-step explanation:

Given

See attachment for net

Required

The surface area

The net has the following shapes:

1 Square: (Length =2)4 congruent triangles (Base = 2; Height = 2)

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Area = Area of Square + 4 * Area of 1 Triangle

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Which expression is equivalent to the following fraction?

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Given:

The fraction is:

[tex]\dfrac{\dfrac{-2}{x}+\dfrac{5}{y}}{\dfrac{3}{y}-\dfrac{2}{x}}[/tex]

To find:

The expression that is equivalent to the given fraction.

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We have,

[tex]\dfrac{\dfrac{-2}{x}+\dfrac{5}{y}}{\dfrac{3}{y}-\dfrac{2}{x}}[/tex]

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A. Students who do not act.


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Answer:

A, B, and D

Step-by-step explanation:

Answer my this question too uregent

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Answer:

The correct answer is D.

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I think it’s none of those.
Radius is a line that reaches the middle of the circle, so like
——
CA

Jonah's favourite number is a positive integer. One day, he decided to write down all of the positive integers starting at 1 and ending with his favourite number. He noticed, in doing so, that he wrote the digit 7 exactly 30 times. What is Jonah's favourite number?

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Answer:

um I think its 14

Step-by-step explanation:

Ben is monitoring a colony of bacteria. Initially, the colony consists of 159 bacteria. The following function represents the number of bacteria in the colony after x hours.



Which expression approximately represents the number of hours, x, it takes for the number of bacteria in the colony to reach 168?

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Answer:

No solution is possible from the information provided

Step-by-step explanation:

you didn't include the function.

This is my last question and then I’m done

Answers

C is the answer. Good luck!

Answer:

C.  y = -2/3 x + 4

Step-by-step explanation:

y = mx + b

From the graph we see that b = 4, and m = 2/3.

y = -2/3 x + 4

If the measure of ABC is 68°, what is the measure of arc AB?​ (the blue line)

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The answer is A = 34 degrees

Simplify this question please im really confused

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Answer:

option A

Step-by-step explanation:

[tex]\frac{x^a}{x^b} = x^{a-b}[/tex] , [tex]z^0 = 1[/tex]

So,

[tex]\frac{18x^5 y}{6xy^8z^0} = \frac{18}{6} \times x^{5 -1} \times y^{1-8} = 3 x^4 \times y^{-7} = \frac{3x^4}{y^7}[/tex]

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Answer:

0/1

Step-by-step explanation:

Complete the table for the given rule.

Rule:y= 4/1 x+1y

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Answer: 2, 3, 4

Step-by-step explanation:

In the table graph provided, you will a column that has "x" as it's title. Under x, 4, 8, and 12 should listed. You figure out the answers for y by inputting the x value into the rule: y = 1/4x + 1.

For y = 1/4(4) + 1, you would multiply 1/4 by 4 and since the fours eliminate one another, you would get 1. Now, you would do 1 + 1, which equals 2. For y = 1/4(8) + 1, you would multiply 1/4 by 8 and since four and eight share the number four as their greatest common factor, four would be eliminated and eight would be reduced to 2. Now, you would do 2 + 1, which equals 3.For y = 1/4(12) + 1, you would multiply 1/4 by 12 and since four and twelve share the number four as their greatest common factor, four would be eliminated and twelve would be reduced to 3. Now, you would do 3 + 1, which equals 4.

PLEASE HELP ANGLE OF A TRIANGLE

Answers

Answer:

59°

Step-by-step explanation:

The angles of a triangle equal 180°.

Also the angle of a straight line is 180°.

So you first find the missing bottom angle by taking 180-147 to equal 33.

Then you take 33+88+x=180

solve for x by subtracting 88 and 33 from 180 to equal 59.

Answer:

59°

Step-by-step explanation:

180 - 147 = 33

88 + 33 = 121

180 - 121 = 59

I need help ASAP!! Please.

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Answer:

x = 8

Step-by-step explanation:

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