Answer:
Monica painted 
of the frame blue.
Step-by-step explanation:
Monica has a 24-inch square frame.There are 4 equal sides. She paints 3/4 of one side of the frame blue.
The perimeter of square is given as = 4s where s is the side length.
Here, perimeter is 24 inches.
So, side will be:
Dividing both sides by 4;
s = 6
So, we get the side of the frame as 6 inches.
Now Monica painted 3/4 of 6 inches.
This value becomes : 
and in fraction it is 
This is part of 24 inches.
So, the fraction will be : 
= 
= 3/16
Hence, Monica painted of the frame blue.
Answer:
60 degrees.
Step-by-step explanation:
We know that we can rotate the image by a total of 360 degrees until we reach the original point again.
To rotate the image to a point where the image looks the same, we need to take a look at how we can do this. We want to line up the image with the gap between the two white semicircles. There are a total of 6 of these gaps:
360/6 = 60 degree rotations will make the image the same.
I hope this helps!
These are 6 questions and 6 answers:
<span>1) Given that P = (2, 9) and Q = (4, 14), find the component form and magnitude of vector PQ . (1 point)
<2, 5>, square root of twenty nine <------- answer
<-2, -5>, 29
<2, 5>, 29
<-2, -5>, square root of twenty nine
Explanation
1) Component form of vector PQ is the subtraction of the coordinates of vector Q less the coordinates of vector P.
So it is < 4 - 2, 14 - 9> = < 2, 5>
Answer: <2, 5>
2) the magnitude is the square root of the sum of the square of each component.
magnitude = √ (2^2 + 5^2) = √(4 + 25) = √29
Answer: √29
2. Let u = <-3, -5>, v = <-3, 1>. Find u + v. (1 point)
<-2, -8>
<-8, -2>
<0, -6>
<-6, -4> <-------------- answer
Explanation: to find the sum of two vectors sum their corresponding components:
u + v = < -3, -5> + < - 3, 1> = < -3 - 3, - 5+ 1> = < - 6, -4>
Answer: < -6, -4>
3. Let u = <-7, -2>. Find 8u. (2 points)
<56, 16>
<-56, 16>
<-56, -16> <---------- answer
<56, -16>
Explanation:
This is the product of a scalar times a vector.
The procedure is to multiply each component of the vector by the scalar.
So, 8u = 8 < -7, - 2> =<8*(-7) , 8*(-2)> = < -56, -16>
Answer: < -56, -16>
4. Let u = <-5, -9>, v = <6, 8>. Find -8u - 2v. (2 points)
<52, 88>
<-8, 2>
<112, -28>
<28, 56> <----------- answer
Explanation:
Multiply each vector by the scalar in front of it and then perform the addition or subtraction.
-8u - 2v = - 8 < - 5, -9> - 2 <6, 8> = <40, 72> - <12, 16> = <40 - 12, 72 - 16> =
= <28, 56>
Answer: <28, 56>
5. Let u = <4, 3>. Find the unit vector in the direction of u, and write your answer in component form. (2 points)
Vector with two components. First component, four divided by seven. Second component, three divided by seven.
<1, 1>
Vector with two components. First component, four divided by five. Second component, three divided by five. <-------- answer
Vector with two components. First component, four divided by twenty five. Second component, three divided by twenty five.
Explanation:
Divide each component by the magnitude of the vector:
1) magnitude of </span><span>u = <4, 3> = √[4^2 + 3^2] = √(16 + 9) = √25 = 5
2) unit vector: <4, 3> / 5 = <4/5, 3/5>
answer: <4/2, 3/2>
6. Two forces with magnitudes of 150 and 75 pounds act on an object at
angles of 30° and 150°, respectively. Find the direction and magnitude
of the resultant force. Round to two decimal places in all intermediate
steps and in your final answer. (2 points)</span>
Explanation:
Force 1, F1 = 150, angle 30°
Force 2, F2 = 75, angle 150°
F1 = 150 cos(30) i + 150 sin (30) j
F2 = 75 cos (150) i + 75 sin (150) j
F1 = 129.9 i + 75 j
F2 = - 64.95 i + 37.5 j
Resultant force, Fr = F1 + F2
Fr = [129.9 - 64.95] i +[75 + 37.5]j = 64.95 i + 112.5 j
Magnitude = √[64.95 ^2 + 112.5^2] = 129.9 pounds
Direction = arctan[112.5/64.95] = 60°
Answer: magnitude 129.9 pounds, direction 60°
