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Mnenie [13.5K]
4 years ago
14

Sin cos tangent..... proving equal Ether a or b

Mathematics
1 answer:
Triss [41]4 years ago
8 0
I believe the answer is A
You might be interested in
1 Point
alexandr1967 [171]

Answer:

Option C

Step-by-step explanation:

The given inequality is

5x-1 < 19 and -3-x+1\le1

Group similar terms to get:

5x < 19+1 and -x\le1-1+3

5x < 20 and -x\le3

Solve for x to get:

x < 4 and  x\ge -3

The correct choice is C

4 0
3 years ago
Read 2 more answers
Please answer ASAP!!!
Leokris [45]
First you need to convert them all into percentages...

dolphin - 43.3%
lion - 56.3%
rabbit - 47.5%
squirrel - 62 %
tiger - 65.8%

1. dolphin, rabbit, lion, squirrel, tiger
2. average person sleeps 8 hours a day which equals 33.3% ( 8/24 )
3. you, dolphin, rabbit, lion, squirrel, tiger
6 0
3 years ago
The following is the formula to find the area of a circle. Which shows the formula correctly solved for the radius (r) in terms
Otrada [13]

Answer:

C

Step-by-step explanation:

This has to be C because you need to divide pi from r squared bc they r multiplied. Then you get a/pi = r squared. You need to find the square root of a/pi. So r equals square root a/pi.

4 0
3 years ago
PLEASE HELP ME I'LL MAKE YOU BRAINLIEST!!!! In 1972, federal vehicle emission standards 3.4 grams hydrocarbons released per mile
AURORKA [14]
<h3>Answer: Approximately -0.0742857 grams per year</h3>

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

Work Shown:

x = year

y = amount of hydrocarbon emissions in grams, per mile driven

m = rate of change = slope

m = (y2 - y1)/(x2 - x1)

m = (0.8 - 3.4)/(2007 - 1972)

m = -2.6/35

m = -0.0742857 approximately

The approximate rate of change is about -0.0742857 grams per year. The negative rate of change indicates the per mile hydrocarbon amount has gone down by about 0.0742857 grams each year.

5 0
4 years ago
An open box is formed by cutting squares with side lengths of 3 inches from each corner of a square piece of paper. what is a si
zhannawk [14.2K]
The volume formula for a square or a rectangle, even, is V=l*w*h
Here, we are given our volume as 675, now we just have to find everything else, right?! Well, if you have a square, all 4 sides are the same exact length, so the length and the width of our formula are going to be the same so we only have to worry about finding a value for one and then use it twice. If you have a square of side length x and you cut 2 squares out of each side measuring 3 inches each, you are cutting away 6 inches. So the side now reflects a length of x - 6. Which is used for the length and the width in our formula. The height of the box will be 3 inches, or in other words, what you cut away from each corner to make a box in the first place! So our formula will look like this: 675 = (x - 6)(x - 6)3. Easiest thing to do is to divide away the 3 to get 225 = (x - 6)(x - 6). Now expand that by FOILing:
225= x^{2} -12x+36
Set it equal to 0 to solve for x, the length and width of each side by moving the 225 over to the other side:
x^{2} -12x-189=0
Now you just have to factor this.  When you do, you get x values of 21 and -9. But we all know that you cannot have a side length be a negative number so the x value is 21.  That's the side length of the original paper before you cut 6 inches away.
8 0
3 years ago
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