All Answers 358087 Answers

Thank you soo so much for the help!!!!

Haley, I'm not sure about the rest....just because the questions asked are a little unclear....but I'll give some of them a shot

3. Evaluate f(x) = −2x    there's nothing here to "evaluate".....it's just the graph of this line with a slope of -2 going through the origin....

5) 1 mile ride =  .035(1) + 1.00 = $1.35

    27 mile ride  = .035(27) + 1.00 = $10.45

6)  {(−1,− 3), (−3,− 5), (−3, 0), (4, 5)}   not a function.....one x value (-3) is associated with two diffeent y values

7)  {(−3,− 1), (1,− 4), (4, 2), (5, 4)}     function   .....no x value is associated with more than one y

8)   {(−2, 3), (−5,− 3), (4, 5), (1, 3)}   function   .....no x value is associated with more than one y

10)....this is similar to (5)

5 mile ride  =   3.25(5) + 5.25 = $21.50

8.3 mile ride = 3.25(8.3) + 5.25  = $32.23   [rounded]

21                    The answer is 19

The speed of light is 3.0x 10 10cm/sec. Convert this to mi/hr

The above is the same as 300,000 KPH

1 mile=1.609344 kilometers

Therefore, 300,000/1.609344=186,411.36 miles per hour.

convert 14.3 miles to inches

1 mile=5,280 feet; 1 foot=12 inches; just multiply 14.3 x 5280 x12=906,048 inches.

4/5 x 1 1/6 =4/5 x 7/6=28/30=14/15

How dose this should so far I will post the rest when I finsh writing it.

First of all, you should learn how to spell! Second, you should learn how to write simple, proper English sentences! And third, this is a forum to help people who have difficulties with Math and NOT about the perils of technology!.

if the tangent = 0.75, what is the degree

Well, once you have the tangent of an angle, then you simply find the "arctangent" of that angle, which in this case would be:36.87 degrees(approx.)

We can use the tangent inverse to find this....so we have...

tan^-1(.75) = about 36.87°

Yeah...if the triangles are congruent, then their areas are equal.....

well ok and the area of that 2 triangles are equal or not??????

2+2=45

The pentagon will have 5 equal triangles.....each will have an area given by:

A  = (1/2)(300^2)sin(72) = 42797.543233275 sq ft

And 5 times this = 213987.716166375 sq ft = 213987.7  sq ft   [ rounded to the nearest tenth ]

Here's a concrete example

If you have a prefab concrete form that is 2 meters by 3 meters by 1.5 meters. How many cubic meters of concrete do you need to form the block?

2¹ * 3¹ * 1.5¹ = 9³ meters

 That is the same as 9 cubic meters

Notice the base numbers are multiplied but the exponents are added.

If you want to solve this you have to use logarithms.

3^x=81

answer:

Log (3^x) =Log (81)

x * Log (3) = Log (81)

x = Log(81)/Log(3)

On the calculator it look like this.

$${\mathtt{x}} = {\frac{{log}_{10}\left({\mathtt{81}}\right)}{{log}_{10}\left({\mathtt{3}}\right)}} \Rightarrow {\mathtt{x}} = {\mathtt{3.999\: \!999\: \!999\: \!999\: \!999\: \!9}}$$

It is really 4

If you do natural log it round it proper.

$${\mathtt{x}} = {\frac{{ln}{\left({\mathtt{81}}\right)}}{{ln}{\left({\mathtt{3}}\right)}}} \Rightarrow {\mathtt{x}} = {\mathtt{4}}$$

Yep...the diagonal of any parallelogram always divides the parallelogram into two equal triangles....we can prove this with Side-Side-Side congruency......

The diagonal will be common to both triangles, and by definition, the other two respective sides are equal [and parallel]. Thus, the two triangles are congruent.

sine = In a right-angle triangle: Sine=Opposite side/Adjacent side. (Opposite means, opposite the angle that you trying to calculate the sine of.)

Using the fact that   a^m * aⁿ = a^m+n, we have

y^2(4y^4+2y-3)  =

4y^6 + 2y^3 - 3y^2

how do i calculate exponents with this calculator?

Please give a concrete example if you want to be shown how to do it, such as 3^x=81........etc.

It appears that this is always true, even if we have an obtuse triangle.....see the pic......

The reason for this is that ΔAEF will always have (1/2) the height of ΔABC, and it's base will always be (3/4)  of  ΔABC.

So Area of ΔABC = (1/2)bh = (1/2)(8)(16)  = 64 cm^2

And Area of ΔAEF = (1/2)([3/4]*8)([1/2]*16)  =  (1/2)(6)(8)  = 24 cm^2

Yeah awkward but remember saying "bite me" to a vampire is like saying kiss me hahaha

yes I did

it was really awkward when 7UP replied to Rosala's song

besides that it was good

(spoiler: Rosala tried to taste 7UP but the Joker took them both out, which is why it says HAVE BEEN)

So Heather did you hear Rosala sing to 7UP?

Is 1.5874010519681995 a rational or irrational number?

In this case it happens to be a rational number, because you can express it as a ratio of 2 numbers. These 2 numbers are: 

numbers are:319688998/201391449

I have know clue I wanna know who made math and why we have to talk it in school throw out your life where only going to need + - x / in your life where not going to need anything else that we are going to have to take in school its dump.