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
Alexandra [31]
2 years ago
15

The value pi/2 is a solution for the equation 2sin^2 x -sinx-1=0

Mathematics
1 answer:
nikklg [1K]2 years ago
7 0

me so sorry come back laterAnswer:

Step-by-step explanation:me so sorry come back later

You might be interested in
Help please! the graph below​
Rom4ik [11]

Answer:

The constant of proportionality is basically just the slope, so the answer is 1/6.

Step-by-step explanation:

Count how many Y units it goes up to get the the black point  from (0,0) (the origin). You go up 1 unit to go 6 units to the right meaning the slope is 1/6.

That is the rise over run technique and there are many others, such as point slope form, and y2-y1 over x2-x1.

Hope this helps!

3 0
3 years ago
CD has endpoints C(-3, 4) and D(1, -2). Find the coordinates<br> of its midpoint.
Natalija [7]

Answer:

Midpoint (-1 , 1)

Step-by-step explanation:

Formula: (midpoint)

Let the point A(x , y) be the midpoint of CD.

x=\frac{x_c+x_D}{2} =\frac{-3+1}{2} =\frac{-2}{2} =-1

y=\frac{x_C + y_D}{2} =\frac{4+(-2)}{2} =\frac{2}{2} =1

Then

A(-1 , 1)

4 0
2 years ago
Read 2 more answers
Prove that for any natural n the number 3^(n+4)−3^n is divisible by 16.
gtnhenbr [62]

Answer:

Proved (See Explanation)

Step-by-step explanation:

Show that 3ⁿ⁺⁴ - 3ⁿ is divisible by 16.

This is done as follows

\frac{3^{n+4} - 3^n}{16}

From laws of indices;

aᵐ⁺ⁿ = aᵐ * aⁿ.

So, 3ⁿ⁺⁴ can be written as 3ⁿ * 3⁴.

\frac{3^{n+4} - 3^n}{16} becomes

\frac{3^n * 3^4 - 3^n}{16}

Factorize

\frac{3^n(3^4 - 1)}{16}

\frac{3^n(81 - 1)}{16}

\frac{3^n(80)}{16}

3ⁿ * 5

5(3ⁿ)

<em>The expression can not be further simplified.</em>

<em>However, we can conclude that when 3ⁿ⁺⁴ - 3ⁿ is divisible by 16, because 5(3ⁿ) is a natural whole number as long as n is a natural whole number.</em>

3 0
3 years ago
A discrete random variable is a variable that is randomly chosen and can take
Colt1911 [192]

Answer:

false

Step-by-step explanation:

4 0
2 years ago
Find rate of change help show work.
sukhopar [10]

Answer:

rise/run = 2/-4 or it is rise/run = -2/4

3 0
2 years ago
Other questions:
  • Find the standard form of x^2-4x 3
    13·1 answer
  • What is the awnser to 3 (4x12
    10·2 answers
  • What the answer to this question
    6·1 answer
  • Determine whether the given sequence could be geometric, arithmetic, or neither. if possible, identify either the common ratio o
    15·1 answer
  • Help! With Fraction Problems??? Hailey is knitting a scarf. Each half hour, she adds 3/7 inch to the scarf's length. How much le
    15·1 answer
  • A (5-x) = bx - 8<br> x =
    8·1 answer
  • A furniture maker uses the specification 19.88
    14·1 answer
  • Malik is making 36 small pack of chili spices and 15 large packs of chili spices. A small pack contains 2.35 ounces of spices.A
    5·2 answers
  • I need help with this problem, please<br> No links please :)
    15·1 answer
  • A recipe calls for 2 cups of cashews for 3 cups of flour. Using the same recipe, how many cups of flour will you need for 5 cups
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!