MATHEMATICS COLLEGE

Derive cos (2x - 1)

Answers

Answer 1

Answer:

Answer:

Step-by-step explanation:

I believe that what you want to do here is to "differentiate" cos (2x - 1).

We must use the rule for differentiating cos x and also the chain rule, since the input to cos x here is (2x - 1).

(d/dx) is the derivative operator.

(d/dx) (cos x) = -sin x

(d/dx) cos (2x - 1) = - sin (2x - 1) * (d/dx) (2x -1) = -sin (2x - 1)(2) = -2sin (2x - 1)

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What is the difference of -2.2 and 0.44?

Answers

1.76 i think thats the answer

one is negative and the other is positive and one has a whole number, and the other only has a decimal

The factors of m2 + 12m + 35 are

Answers

You need to find 2 numbers x and y that solve the equations:

x * y = 35

x + y = 12

it looks like x = 5 and y = 7 will work

Please express exponentiation with the " ^ " symbol:

m^2 + 12m + 35

To factor this, look at the constant term and list possible pairs of factors:
1, 35
5, 7

Note that 5 + 7 = 12, which matches your middle term (12m).

5 and 7 are roots (not factors) of m^2 + 12m + 35. The corresponding factors are then (m+5) and (m+7). If you multiply these two factors together, the final result will be m^2 + 12m + 35.

Hayley and Tyra had lunch atRuby Tuesday. Their bill was
$22.40. If they leave a 15%
tip, how much is the tip?

Answers

22.40 * 0.15 = 3.36
The tip is $3.36

$3.36 hope this helps.
22.40*.15= 3.36

The average customer waiting time at a fast food restaurant has been 7.5 minutes. The customer waiting time has a normal distribution. The manager claims that the use of a new system will decrease average customer waiting time in the store. What is the null and alternative hypothesis for this scenario? (Ch10)A. H0: m =7.5 and H1:m ? 7.5

B. H0: m <=7.5 and H1:m > 7.5

C. H0: m >=7.5 and H1:m < 7.5

D. H0: m <7.5 and H1:m >=7.5

E. H0: m >7.5 and H1:m <= 7.5

Answers

Answer: C . $H_0:\mu\geq7.5$ and $H_a:\mu<7.5$

Step-by-step explanation:

Definition:

Null hypothesis $(H_0)$ is a statement about the population parameter according to the objective raised by the researcher . It contains '=' , '≤' and '≥' signs.

Alternative hypothesis $(H_a)$ is also a statement about the population parameter but against null hypothesis . It contains '≠' , '<' and '>' signs.

Let $\mu$ be the average customer waiting time for the population.

Given : The average customer waiting time at a fast food restaurant has been 7.5 minutes.

Objective of test : After using new system , the average customer waiting time is at least 7.5 or less than 7.5.

Then, the null and alternative hypothesis for this scenario will be :

$H_0:\mu\geq7.5$

$H_a:\mu<7.5$

33 + 2(5+8) - (6-2)2 =

Answers

Answer:

Step-by-step explanation:

33+2(5+8)-(6-2)2

openthebracketsFIRST

2(5+8)=26

33+26-(6-2)2

33+18

=51

Prove that if a,b and c are odd integers such that a + b +c = 0, then abc < 0. (you are permitted to use well-known properties of integers here.) be sure to show all work.