All categories

4 years ago

All help is appreciated! If sin²(32°) +cos² (M) = 1, then M equals?

Mathematics

1 answer:

zaharov [31]4 years ago

4 0

Answer: M=32°

Step-by-step explanation:

The identity sin²(x)+cos²(x)=1 can help us figure out the value of M. You can see that the problem's format fits exactly the identity. Since x is the same in the identity, we know that M=32°.

You might be interested in

Based on the polynomial remainder theorem, what is the value of the function when x = 4? f(x)=x4−2x3+5x2−20x−4

Firdavs [7]

The answer is f(x) = 124

4 0

4 years ago

Read 2 more answers

Consider the points below. P(2, 0, 2), Q(−2, 1, 4), R(7, 2, 6)

Zina [86]

Answer: the vector orthogonal is ( 0, 26, -13 )

Step-by-step explanation:

Given that;

P(2, 0, 2), Q(−2, 1, 4), R(7, 2, 6)

PQ = Q - P = (−2, 1, 4) - (2, 0, 2) = (-4, 1, 2)

PR = R - P = (7, 2, 6) - (2, 0, 2) = ( 5, 2, 4)

orthogonal vector = PQ × PR

= ║ i j k

-4 1 2 = i(1×4 - 2×2) + j(5×2 - (-4×4)) + k(-4×2 - 5×1) = 0i + 26j - 13k

5 2 4 ║

= ( 0, 26, -13 )

Therefore the vector orthogonal is ( 0, 26, -13 )

3 0

3 years ago

Which of the following are true? Select all that apply.

STALIN [3.7K]

Answer:

Answer B is the correct answer..

cot(theta)=cos(theta)/sin(theta)

7 0

3 years ago

Read 2 more answers

Heheh ik im annoying but plssss im trying to graduate hs

zlopas [31]

Answer:

It's the 2nd one : -30 $a^{5}$ b + 12 $a^{4} b^{3}$ + 16 $a^{3} b^{2}$ - 4 $a^{2} b^{4}$ - 2a $b^{3}$

4 0

3 years ago

Becca and Kimberly are running at a constant speed in a marathon. Becca runs at 4.5 miles per hour. Kimberly’s progress is shown

Georgia [21]

Answer:

Part A: Kimberly

Part B:

Becca = 22.5 miles, Kimberly = 25 miles

Step-by-step explanation:

Part A:

Given that Becca runs at a constant speed of 4.5 miles per hour, use the table to find the constant speed that Kimberly runs, and compare who runs faster.

Let x = time

y = distance

k = speed = y/x

Equation for each person can be written as: y = kx

Therefore:

✔️Equation for Becca if k = 4.5

y = 4.5x

✔️Find k (speed) of Kimberly using (2, 10):

Speed (k) = y/x

k = 10/2

k = 5 miles per hour

Equation for Kimberly would be:

y = 5x

Comparing their speed, Kimberly runs faster because she covers more miles per hour than Becca does.

Part B:

For Becca, substitute x = 5 into Becca's equation, y = 4.5x

Thus:

y = 4.5*5 = 22.5 miles

For Kimberly, substitute x = 5 into Kimberly's equation, y = 5x

Thus:

y = 5*5 = 25 miles

5 0

3 years ago