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Viefleur [7K]
3 years ago
7

I NEED HELP!!! I give brainiest

Mathematics
1 answer:
Lubov Fominskaja [6]3 years ago
5 0

Answer:

D

Step-by-step explanation:

Thats is your answer. Have a good day

You might be interested in
solve the following inequality. Then plays the correct answer in the box provided. answer in terms of a mixed number. 2(P+1)+3(P
Vesnalui [34]
2(P+1)+3(P+2)>2
Distribute
2P+2+3P+6>2
Simplify
5P+8>2
Subtract 8 from both sides
5P>-6
Divide both sides by five
P>(-6/5)
Turn to mixed number and you're done.
P>-1 and 1/5
5 0
4 years ago
Can someone please teach me how to do this? You can please do like 2 questions and please explain exactly how you got the answer
spayn [35]

All of these questions require one thing: trigonometric functions.

There are 3 main trigonometric functions, which can only be used on right triangles: sine, cosine, and tangent.

Sine = opposite / hypotenuse

Cosine = adjacent / hypotenuse

Tangent = opposite / adjacent

When trying to figure out what function to use, we always start by looking from the angle. Take problem a, for example. Looking from angle E, of which the value is not given, we have the side opposite and the side adjacent. Therefore, we should use the tangent function.

---The hypotenuse is always the longest side of the triangle. It is never considered the opposite or adjacent side.

Let's set up our function with the given information from problem a.

tan(x) = 9.7 / 5.2

---The tangent of an unknown angle is equal to the quotient of the opposite side and the adjacent side.

Now, solving for the value of x will require a calculator. We'll need to use what's called an inverse trigonometric function. Most calculators have these directly above the regular trigonometric functions, and the inverse functions are accessed using a "second" key.

---Ensure that your calculator is in degrees, not radians!

x = tan^-1(9.7 / 5.2)

x = 61.805 = 62 degrees

Next, let's take a look at problem b. This time, we're solving for a side length instead of an angle. But, we're still going to start by looking from our angle.


Looking from the 38 degree angle, we are given the adjacent side and an unknown hypotenuse. Therefore, we should use the cosine function.

cosine(38) = 53.1 / r

---The cosine of a 38 degree angle is equal to the quotient of 53.1 and an unknown hypotenuse, r.

Use your algebra skills to isolate the variable r.

r * cosine(38) = 53.1

r = 53.1 / cosine(38)

---From here, all you need to do is plug this into your calculator. Since we are solving for a side length (and given an angle), we are just using the regular trigonometric function buttons on the calculator.

r = 67.385 = 67.4 units

Hope this helps!

4 0
2 years ago
Exploring permutations (PLEASE HELP)
amid [387]

Answer:

3 ways for number 1

Step-by-step explanation:

JUST TRUST ME!

5 0
2 years ago
Read 2 more answers
In the game of​ roulette, a player can place a ​$7 bet on the number 5 and have a 1/38 probability of winning. If the metal ball
adell [148]

Answer:

973.68 times

Step-by-step explanation:

Since you would expect to win 1 in 38, the amount of times you will win in 1000 times is 1000 / 38 which is 26.32. therefore you would expect to lose 1000 - 26.32 times which is 973.68

7 0
3 years ago
. a thin plate made of iron is located in the xy-plane. the temperature t in degrees celsius at a point p(x,y) is inversely prop
harkovskaia [24]

The level of the curves are all the eclipses with the major axis.

             100                        50          1

a2 =       ------  - 1   ,   b2 =   -------  -   -----

               C                            C           2

Given that:

               100

T(x, y) = ------------

               1 + x2 + y2

This implies that the level curves of a function(f) of two variables relate to the curves with equation f(x, y) = c

where c is the constant.

                 100

        C = ------------                          ----- (1)

             1 + x2 + y2

By cross multiply

C (1 + x2 + y2) = 100

1 + x2 + y2 = 100/C

       

               100

x2 + y2= ---------  - 1                    -----(2)

                 C

From (2); let's assume that the values of c > 0 likewise c < 100, then the interval can be expressed as 0 < c <100.

Now,

(x)2           (y)2

------   +     ---------------

100            50          1

------  - 1     -------  -   -----

C                C           2

This is the equation for the  family of the eclipses centered at (0,0) is :

x2/a2 + y2/b2 = 1

             100                        50          1

a2 =       ------  - 1      b2 =   -------  -   -----

              C                            C           2

Therefore; the level of the curves are all the eclipses with the major axis:

             100                        50          1

a2 =       ------  - 1      b2 =   -------  -   -----

              C                            C           2

 and a minor axis   which satisfies the values for which 0< c < 100.

The sketch of the level curves can be see in the attached image below.

To learn more about Plane of Axis visit:

brainly.com/question/14407559

#SPJ4

6 0
1 year ago
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