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const2013 [10]
3 years ago
11

Please help! i don't know what to do

Mathematics
1 answer:
Strike441 [17]3 years ago
6 0

Answer:

0.5* sin(x)

Step-by-step explanation:

As well known  sin (2A)= 2sin(A)*cos(A)

As in our case A=x/2  => cos(x/2*sin(x/2)=1/2*sin(x)=0.5*sin(x)

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Hi<br> Need help ASAP please
solong [7]

it's 3/2 because it rises three and goes over two. hope this helps !!

7 0
3 years ago
Write y=x^2-4x-1 in vertex form
Dvinal [7]

Answer:  y= (x+2)² − 5

Step-by-step explanation:

The way I got this answer is by completing the square. The first step though, when looking at this equation, is to see if we can factor it. The way to check is to look at the coefficient for x² which is 1, and the constant, in this case -1. If we multiply those together, we get  −. Now we look at the middle term, 4x. We need to find any numbers that multiply to equal  −  1x² and add to  4x. There aren't any, which means it is not factorable.

Hope I helped

7 0
3 years ago
A six-sided number cube labeled 1 through 6 is rolled 500 times. An odd number is rolled 325 times. Compare the experimental pro
Komok [63]
The actual probability of having odd is 3/6=1/2
so no of odds theoretically is 250

but it is 325
so, experimental is higher than theoretical
so answer is B !
and you can go for that !
5 0
3 years ago
Read 2 more answers
1) Which of the following does not show the Commutative Property of Addition ?
Luda [366]

Answer:

I think it would be c.ab=ba but im not 100% sure

Step-by-step explanation:

4 0
3 years ago
Write an equation for the line parallel to y = -7x + 15 that passes through the point P(9,-6).
Elan Coil [88]

Answer:

y = -7x + 57

Step-by-step explanation:

If the line is parallel, it will have the same slope. So, this line will also have a slope of -7.

Use y = mx + b, plug in the slope and given point, and solve for b:

y = mx + b

-6 = -7(9) + b

-6 = -63 + b

57 = b

Plug in the slope and y intercept into y = mx + b:

y = mx + b

y = -7x + 57

So, the equation is y = -7x + 57

6 0
3 years ago
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