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Rom4ik [11]
3 years ago
5

Cot^2x-tan^2x=1 for all values of x true or false?

Mathematics
2 answers:
sergejj [24]3 years ago
6 0

Answer: FALSE for apex precalculus sem 2 trigonometric identities


Step-by-step explanation:


Vsevolod [243]3 years ago
5 0
False
And I have to keep writing because Brainly will not me submit more than 20 characters 
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A boat traveled 36 miles in 1.5 hours and then 14 miles in 0.75 hours. what is the average speed of the boat?
jeka57 [31]
Speed=distance/time
You'll have to combine like terms.
36+14=50
1.5+0.75=2.25

And then you can use the formula.
50/2.25

7 0
3 years ago
Write an equation to find the number of Mr.night's homeroom if the total number of students is 90
tia_tia [17]
This question is obviosly missing an ending but, I bet you will have to divide.
5 0
2 years ago
A shipping crate is packed with unit cubes. The length of the crate is 4
aleksley [76]

Answer:

The volume of shipping crate is 32 unit cubes.

Step-by-step explanation:

Given that:

Length of the crate = 4 units

Width of the crate = 2 units

Height of the crate = 4 units

Volume of shipping crate = Length * Width * Height

Volume of the crate = 4 * 2 * 4

Volume of crate = 32 unit cubes.

Hence,

The volume of shipping crate is 32 unit cubes.

7 0
3 years ago
Read 2 more answers
Find the general solution of the differential equation and check the result by differentiation. (Use C for the constant of integ
tensa zangetsu [6.8K]

Answer:

y=3t^9+C

Step-by-step explanation:

Given:  \dfrac{dy}{dt}=27t^8

We want to obtain the general solution of the given differential equation.

dy=27t^8$ dt\\$Take the integral of both sides\\\int dy =\int 27t^8$ dt$\\y=\dfrac{27t^{8+1}}{8+1} +C$, (where C is the constant of integration)$\\y=\dfrac{27t^{9}}{9} +C\\\\y=3t^9+C

The general solution of the differential equation is: y=3t^9+C

CHECK:

\dfrac{d}{dt} y=\dfrac{d}{dt}(3t^9+C)=\dfrac{d}{dt}(3t^9)+\dfrac{d}{dt}(C)\\\\\text{Since derivative of a constant is zero}\\\\\dfrac{dy}{dt}=27t^{9-1}\\\dfrac{dy}{dt}=27t^8

4 0
3 years ago
Karl is buying a new car. At Bank A, a car loan will cost him 11.5%. At Bank B, it will cost 12.25%. If he borrows $8,000, how m
Brums [2.3K]
Karl is saving $60

8,000*0.115= 920

And, 8,000*0.1225= 980

 
5 0
3 years ago
Read 2 more answers
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