Is 94.84 an integer in math

Answer:

[tex]cos2\theta = -frac7{25}[/tex]

Step-by-step explanation:

By using the double angle formula for cosine [tex]cos 2\theta = 2cos^2\theta -1[/tex], replacing the value we have we get

[tex]cos 2\theta = 2 (\frac35)^2 -1 = 2\frac9{25} -1 = \frac{18}{25}-\frac{25}{25} = -\frac{7}{25}[/tex]

Answer:

-7/25

Step-by-step explanation:

Disclaimer: I'm using variable x instead of theta.

Step 1: Simplify cos 2x.

[tex] \cos(2x) = \cos {}^{2} (x) - { \sin {}^{2} (x) }^{2} [/tex]

[tex] \cos(2x) = \cos {}^{2} (x) - (1 - \cos {}^{2} (x) ) [/tex]

[tex]2 \cos {}^{2} (x) - 1[/tex]

We know that cos x= 3/5 so that means

[tex] 2(\frac{3}{5} ){}^{2} - 1 = 2( \frac{9}{25} ) - 1 = \frac{18}{25} - 1 = \frac{ - 7}{25} [/tex]

So the exact value of cos 2x=

[tex] \frac{ - 7}{25} [/tex]

There is another way to find this but this is easier.

Answer:

Step-by-step explanation:

M = miles

.25M + 160 = 360.00

.25  = 360 - 160

200/ .25

M = 800 miles

Answer:

Option A

Step-by-step explanation:

We use the slope formula:

[tex]\frac{y_{2}-{y_{1}} }{x_{2} -x_{1} }[/tex]

We substitute the values given and see which option corresponds with our equation:

[tex]\frac{-4-(-6)}{-2-3}[/tex]
Option A must be correct

Answer: 2/8

Step-by-step explanation:

Think of it as 6 - 4. We know that 6 - 4 is 2, so the same thing apple is to 6/8 - 4/8. So, you have 2/8!

Answer:

Step 1: Divide 300 by 200 to get the number as a decimal. 300 / 200 = 1.5

Step 2: Multiply 1.5 by 100. 1.5 times 100 = 150. That's all there is to it!

Note that you can reverse steps 1 and 2 and still come to the same solution. If you multiply 300 by 100 and then divide the result by 200, you will still come to 150!

Step-by-step explanation:

hope it helps

Answer:

i think 8cm is triangle area

Step-by-step explanation:

because i saw that 8cm on the side so I told 8cm the triangle.

Answer:

O 16,30,34

Step-by-step explanation:

To confirm, use Pythagorean theorem to check.

(16)² + (30)² = (34)²

256 + 900 = 1156

=> It is correct

=> Therefore, this set of three lengths will form a right triangle

Answer:

I think I'm correct I don't know but I think the answer is B

Answer:

They are not equal

Step-by-step explanation:

So, lets start by simplifying the expressions

Expression 1:

4s + 2

Expression 2:

s x s x s x s + h x h

s^4 + h^2

We have two different expressions now, they don't seem to be equivalent, since in the first one, we have 4 x s + 2, but in the second one, it is s x s 2 times added with h x h.

If you have any questions, let me know in the comments. If you could mark this answer as the brainliest, I would very much appreciate it! :D

Answer:

4

Step-by-step explanation:

Quarter hour on chemistry

Quarter hour on class 2

Quarter hour on class 3

Quarter hour on class 4

Total time....One hour

Answer:

9/4 is as a fraction ..

I hope it will help you .

16. a
17. a
18. d
19. b
20. c
21. c
22. d
23. c
24. (please zoom in the circle so i can see the radius)

Answer:

The answer is A)

Step-by-step explanation:

If we take it from the bottom left corner which it wants us to. We get the point (4,-6) if you move it 8 left and 7 up you get the new point (-4,1) Which ends up putting figure 1 inside of figure 2.

Hope this helped.

A brainliest is always appreciated

The approximate value of x will be approximately equal to 3.4

The formula for calculating area of rectangle is expressed as:

A  = lw

Ar = (3x-1)(x+2)

Ar = 3x^2+6x-x-2

Ar = 3x^2 + 5x - 2

For the circle

Ac = πr²

Ac = 3.14(x-3)²

Ac = 3.14(x²-6x+9)

Ac = 3.14x² - 18.84x + 28.26

If the area are equal;

3x² + 5x - 2 = 3.14x² - 18.84x + 28.26

3.14x² - 3x² - 5x - 18.84x + 30.26 = 0
0.14x²-23.84x+30.26 = 0

On factorizing the equation, the approximate value of x will be approximately equal to 3.4

Learn more on area of rectangle here; https://brainly.com/question/25292087

Answer:

it's 7.5

Step-by-step explanation:

1/2 as a decimal is 0.5

Answer:

They scored 66 points

Step-by-step explanation:

Sally scored 45% out of the 100%

And there are 120 points in all.

To find the rest of the teams points you have to subtract Sally's points:

100% - 45% = 55

So to find this out you solve for x (points):

55/100 = x/120

100x = 6,600

100x = 6,600

100         100

x = 66

Step-by-step explanation:

Answer:

E'=[0,-8]

H'=[0,-3]

Step-by-step explanation:

Answer:

52

Step-by-step explanation:

answer = fifty two

x = 52

Answer:

X+90+90+128=360(total sum of quadrilateral)

X+180+128=360

X+308=360

X=360-308

X=52

Answer:

$0.25

Step-by-step explanation:

To find the unit rate of each orange, divide the total cost of the bag by the number of oranges in the bag:

⇒ 3.75 ÷ 15 = 0.25

Therefore, the unit rate of each orange is $0.25

Answer:

Explanation to the answer below... (Answers in the Explanation)

Step-by-step explanation:

We Know that our rule is y = [tex]y = -6(3)^{x}[/tex] , which means we can use this rule to find y from x. Since we don't know what X, is, we have to assume numbers like 1, to 7. And there is no space to write on the graph, I'll put a virtual copy of a graph.

1st Point,

[tex]y = -6(3)^{x}\\y = -6(3)^{1}\\y = -6(3)\\y = -18\\x = 1, y = -18[/tex]

2nd, point

[tex]y = -6(3)^x\\ y = -6(3)^2\\y = -6(9)\\y = -54\\x = 2, y = -54[/tex]

3rd Point

[tex]y = -6(3)^x\\y = -6(3)^3\\y = -6(27)\\y = -162\\x = 3, y = -162[/tex]

4th Point

[tex]y = -6(3)^4\\y = -6(81)\\y = -486\\x = 4, y = -486\\[/tex]

5th Point

[tex]y = -6(3)^5\\y = -6(243)\\y = -1458\\\x = 5, y = -1458[/tex]

6th Point

[tex]y = -6(3)^x\\y = -6(3)^6\\y = -6(729)\\y = -4,374\\x = 6, y = -4,374\\[/tex]

7th Point (Last Point)

[tex]y = -6(3)^x\\y = -6(3)^7\\y = -6(2,187)\\y. = -13,122\\x = 7, y = -13,122[/tex]

Let's now plot them on the Graph, the values are so big, the graph might look a little odd.

Always remember that we can continue the points infinitely, and there is no stop, The Graph is attached below...

Answer:

18 cats.

Step-by-step explanation:

5 divided by 2 is 2.5. 45 multiplied by 2.5 is 18. This is the right answer, I double checked it.

Answer:

-5.7 + (-4.2) is your question and -9.9 should be the answer for you

Step-by-step explanation:

hope this helps please mark me brainliest

Check the picture below.

Answer:

Step-by-step explanation: it is 37 and per =45

yes we are you doing today I think I have a

Answer:

D

Step-by-step explanation:

D is the only graph where the shaded region is on 6 and less.

Answer:

12 boys

Step-by-step explanation:

30 in total - 18 girls = x boys

30 - 18 = 12 boys