Sin 2x=check all that apply
A. 2sin x cos x
B. 1-2 sin^2 x
C. 2cos x sin x
D. 2sin x +2cos x
Answers
Answer:
A,C
Step-by-step explanation:
sin 2x=sin (x+x)=sinx cos x+cos x sin x=2 sin x cos x
or =2 cos x sin x
[sinx cox=cos x sin x ]
Related Questions
You have 80 pieces of fabric to make a wall hanging. Each piece of fabric is a square with a side length of 5 inches. You use as many pieces of fabric as possible to create a square wall hanging.What is the area of the wall hanging? How many pieces of fabric are left over? How many more pieces of fabric would you need to increase the size of the wall hanging?
PLEASE HELP 15 points for brainliest!What is the solution of n^2-49=0a.-7b7c.+/-7d. no solution2. What is the solution of x^2+64=0a.-5b.8c.+/-8d. no solution3. what is the side length of a square with an area of 144x^2a.12b.12xc.+/-12xd. no solution
Find the area of the figure below.
Please help me!5/6 x 138
Answers
Answer:
Silvia projected to make $126 in July=
Step-by-step explanation:
He earned $60 in June.
He is projected to earn 110% more in July.
110% of $60 = 60* 1.1 = $66 more in july
How much is Silvia projected to make in July= amount made in june + projected amount to be made in july
= $60 + $66 = $126
Answer:
Silva earns, or projected, $126 in July.
Step-by-step explanation:
Hope this helppppssss!!!! <3
Answers
let's call then x and y
we know that 2(x+y)=12.5 (that's the distance around)
so that means that x+y=6.25 (I just divided both by 2)
now, x=4y (from "4 times as long as it is wide")
so we can substitute:
x+4x=6.25
5x=6.25
x=1.25
so one side, is 1.25 and the other will be 1.25*4=5
and for the area we multiply the two:
1.25*5=6.25 square kilometers, and this is the answer!
The Area of the park is 6.25 square kilometers.
- Let the wide = X
- The length = 4X (the length is 4 times long as it is wide)
Further Explanation
Therefore, we should have:
To determine the perimeter of the rectangle = 2 x (length + wide)
P = 2 (L + W)
P = 2L + 2W
Recall the distance around the park is 12.5,
Hence,
= 12.5 = 2 (4x) + 2 (x)
= 12.5 = 8x + 2x
= 12.5 = 10x
X =
X = 1.25
To determine the area, the formula for area is (A = W x L)
A = X x (4X)
A =
A = 4 x
A = 4 x (1.25 x 1.25)
A = 4 x 1.5625
A = 6.25 square kilometers
Thus, the area of the park is 6.25 square kilometers.
LEARN MORE:
- A park is 4 times as long as it is wide. if the distance around the park is 12.5 kilometers, what is the area of the park brainly.com/question/768779
- A park is 4 times as long as it is wide. if the distance around the park is 12.5 kilometers, what is the area of the park brainly.com/question/286278
KEYWORDS:
- square kilometers
- a park is 4 times
- wide
- area of a rectangle
- perimeter of a rectangle
- area of the park
I do not know how to post the picture but the answers are
A. Y= -1/3x - 1
B. Y=-3x -1
C. Y=3x + 1
D. Y=3x - 1
Answers
slope = (y2-y1)/((x2-x1)
= (-4-2)/(1-(-1))
= (-6/2)
m = -3
point slope form
y-y1 = m(x-x1)
y-2 = -3(x-(-1))
y-2 =-3(x+1)
y-2 = -3x-3
y= -3x-3+2
y=-3x-1
Choice B
Answers
Answers
Answer:
0.225
Step-by-step explanation:
0.9 divided by 4 = 0.225.