1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
fomenos
3 years ago
11

Urgent! If you want to help me, go to my profile and answer my last 2 questions!! Again, this is urgent and I really need help :

( If you can help, I will give brainliest. Thanks :)
Mathematics
2 answers:
max2010maxim [7]3 years ago
8 0

Answer:

I answered one of them for you.

erastovalidia [21]3 years ago
5 0

Answer:

okay i will check it to see

Step-by-step explanation:

You might be interested in
14 in. = _____ ft<br> Plzzzzzzzzzzzz help
mina [271]
1ft 2inches
or
1 1/6ft
4 0
3 years ago
Read 2 more answers
PLZ ANSWER ASAP NEEDS CORECT ANSWER
Nataliya [291]

Answer:

10,935

Step-by-step explanation:

lvl 1: 15 x 3=45

lvl 2: 45 x 3=135

lvl 3: 135 x 3=405

lvl 4: 405 x 3=1215

lvl 5: 1215 x 3=3645

finally lvl 6: 3645 x 3=10,935

8 0
3 years ago
Plzzz help me 10 min left​
jeka57 [31]

Answer:

D

Step-by-step explanation:

The opposite of negative is positive therefore,

the opposite of -2 is positive 2.

2 is locaded at D.

3 0
3 years ago
Please help! Find the value of X. Round to the nearest tenth. acellus
just olya [345]

9514 1404 393

Answer:

  38.2°

Step-by-step explanation:

The law of sines tells you ...

  sin(x)/15 = sin(27°)/11

  sin(x) = (15/11)sin(27°) . . . . . multiply by 15

  x = arcsin((15/11)sin(27°)) ≈ arcsin(0.619078) ≈ 38.2488°

  x ≈ 38.2°

_____

<em>Additional comment</em>

In "law of sines" problems, you need to identify a side and opposite angle that you know both values of. Then, you need to identify whether you're looking for an angle or a side, and whether its opposite side or angle is known. If two angles are known, you can always figure the third from the sum of angles in a triangle.

Here, we have angle 27° opposite side 11. We are looking for an angle, and we know its opposite side. This lets us use the ratio formula directly. Since the angle is the unknown, it is useful to write the equation with sines on top and sides on the bottom.

The given angle is opposite the shorter of the given sides, so this triangle has two solutions. We assume that we want the solution that is an acute angle  (141.8° is the other solution). That assumption is based on the drawing. Usually, you're cautioned not to take the drawings at face value.

7 0
3 years ago
Integrate dx/3sinx+4cosx
german

\displaystyle\int\frac{\mathrm dx}{3\sin x+4\cos x}

A standard approach would be the tangent half-angle substitution:

t=\tan\dfrac x2\implies\mathrm dt=\dfrac12\sec^2\dfrac x2\,\mathrm dx

Then

\sin x=2\sin\dfrac x2\cos\dfrac x2\implies\sin x=\dfrac{2t}{1+t^2}

\cos x=\cos^2\dfrac x2-\sin^2\dfrac x2\implies\cos x=\dfrac{1-t^2}{1+t^2}

from which we get

\mathrm dx=\dfrac2{1+t^2}\,\mathrm dt

So the integral becomes

\displaystyle\int\frac{\frac2{1+t^2}}{\frac{6t}{1+t^2}+\frac{4(1-t^2)}{1+t^2}}\,\mathrm dt=\int\frac{\mathrm dt}{3t+2(1-t^2)}=-\int\frac{\mathrm dt}{2t^2-3t-2}

Rewrite the denominator as

2t^2-3t-2=(2t+1)(t-2)

and expand the integrand into its partial fractions:

\dfrac1{2t^2-3t-2}=\dfrac15\left(\dfrac1{t-2}-\dfrac2{2t+1}\right)

We have

\displaystyle-\frac15\int\frac1{t-2}-\frac2{2t+1}\,\mathrm dt=-\frac15(\ln|t-2|-\ln|2t+1|)+C

=\dfrac15\ln\left|\dfrac{2t+1}{t-2}\right|+C

=\dfrac15\ln\left|\dfrac{2\tan\frac x2+1}{\tan\frac x2-2}\right|+C

6 0
3 years ago
Other questions:
  • Writing decimals in word form .145
    6·2 answers
  • Complete the following equation using &lt;,&gt;,or = 120% blank 1
    5·1 answer
  • Solve quadratic equations using completing the square then write in vertex form
    9·1 answer
  • Write the equation of the line that passes through the points (3,-2) and (5, -1).
    11·1 answer
  • What is the solution of sqrtx^2+49 = x+5?​
    10·1 answer
  • the question for this is "*The Spanish Club begins the school year with a $50 balance in its account. To raise money for activit
    7·1 answer
  • Math problem plz help me ​
    11·2 answers
  • Plz answer. I’m in a hurry thx.
    7·1 answer
  • −8x−10=4x+14 what’s x
    8·2 answers
  • Solve the equation. 20 = y + 8
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!