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Multiply $9.75 by 25 hours to get how much she earns per week ----> $243.74 per week

Now you can multiply that number by 8 to get how much money she earned in 8 weeks. ----> $1950

factor out x^3 so you have 2x^3(2x^2+9) now you can solve for two values of x that would result in 0 2x^3=0 when x=0 and 2x^2+9=0 when x= pos or neg the square root(9/2)

The answer of 550% can be found by realizing that 1 is 100%

5.5 = 1 * 5.5

5.5 = 100% * 5.5 = 550%.

550% *

-13

%550

Just think of it in terms of signs. You know that secant theta has to be positive because it is greater than 0, and you know that cotangent is negative since it is less than 0. Use identities to get secant and cotangent into familiar terms. secant=1/cos and cot=cos/sin. We also know that cos corresponds to x values and sin corresponds to y values. Now just think of these two terms as x and y values. When will 1/x be positive and when will x/y be negative? the answer is the fourth quadrant. You move to the right wich allows x to positive and then down which allows y to be negative

First you could multiply both sides of the equation by (cos(theta) - 0.5sin(theta)) to get:

sin(theta) + 0.5cos(theta) = 3.4938cos(theta) - 1.749sin(theta)

Then you could subtract 0.5 cos(theta) from both sides and add 1.749sin(theta) to get:

2.749sin(theta) = 2.9938cos(theta)

Now divide both sides by 2.749 to get:

sin(theta) = 1.089cos(theta) ----> (Keep in mind I rounded this number so be sure to include this number in your calculations in its full form).

Now divide both sides by cos(theta) to get:

sin(theta)/cos(theta) = 1.089

This simplifies to:

tan(theta) = 1.089 ----> (sin(x)/cos(x) is always equal to tan(x))

Now use the inverse tangent function to get:

47.44 degress or 0.8280 radians.

what factors of -15 multiply and get -15 but add up to 10

No, you cannot see it from the series as written. You can only derive it, indirectly, from infinite deries formula: s=a1/[1 - r]. You can possibly see it by repeated subtractions of the denominators, such as:

3, 12, 30, 60, 105,168, 252, 360, 495, 660, 858
    9, 18, 30, 45, 63, 84, 108, 135, 165, 198
       9,  12, 15, 18, 21, 24, 27, 30, 33
          3, 3, 3, 3, 3, 3, 3, 3............=1/3 common ratio!!!

Thanks Alot. Are you a teacher?

It's 25 + -2, not 25 + 2, so the answer's 23, not 27.

But I still do not see a common ratio of 1/3...

a geometric series may simply be written as

a + a r + a r 2 + a r 3 + ⋯

and 1/3 does not fit the bill.......how did you get 1/3??

Disregard this; I was thinking of skew lines.

Listen to geno3141, below:

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By using the "Partial Sum Formula", you can easily see that it is converging to 1/2. Since this an infinite series with a sum of 1/2 and 1st.term 1/3, therefore the common ratio will be 1/3:

sum_(n=1)^m 2/(n (n+1) (n+2)) = (m^2+3 m)/(2 (m+1) (m+2))

P.S. You may try the 1st. 1,000,000 terms and you will get:0.499999999999000002999993000015....etc.

Start with three horizontal parallel lines (streets).

Cross these lines (streets) with two lines (streets), one going from the top-left down to the lower-right (this has a negative slope), the other going from the lower-left up to the upper-right (this has a positive slope). There will be many angles, alt. int., alt. ext., etc. and linear pairs and supplementary angles.

Well to understand this concept you can look at 10¹ which equals 10.

There is 1 digit (0) behind the first digit (1).

So based on this logic 10¹³ would have 13 digits behind the first number and therefore, it would equal 10 000 000 000 000

That means 7.7 * 10¹³ would just be that number multiplied by 7.7 which would just equal 77 000 000 000 000.

You entered two equal signs -- did you make a mistake?

a right triangle has legs of length 6.4 inches and 7.7 inches .what is the area of the triangle ?

Which don't you get how to do?

The only one which seems like it may be troublesome is the transversal. Are you sure it's not perpendicular?

If it's transversal lines, then you can only really do it in 3D, since transversal lines are by definition on different planes.

If you're really unsure, you should ask your teacher what she wants on the specific parts you're confused about.

If you're trying to do fractions, you can just enclose each term in parenthesis.

Yea it's just the divide button

Well, make a list of the factors of 6 like so:

-6

1 * -6 | (1 - 6 = -5)

-1 * 6 | (-1 + 6 = 5)

2 * -3 | (2 - 3 = -1)

-2 * 3 | (-2 +  3 = 1)

2 and -3 multiply to equal -6, and add up to equal -1.