Ask question

Ask question

All categories

3 years ago

12

What is formula of sec(A+B)

1 answer:

Natasha2012 [34]3 years ago

8 0

Answer:

(cos a cos b - sin a sin b)

Step-by-step explanation:

It's easy

You might be interested in

What number is 35 percent of 20

Fynjy0 [20]

Steps:
1. Do a proportion
X/20=35/100
2. Do 35 times 20 which equals 700
3. Do 700 divided by 100
4. Your answer is
7

8 0

3 years ago

Read 2 more answers

Could someone help please

posledela

78+12 = 90 positive test

not pregnant given positive test 12

12/90

.13

B

6 0

3 years ago

Read 2 more answers

Which is the directrix of a parabola with equation x^2=8y

stellarik [79]

According to the definition, is a parabola is in the standard form of (x-h)^2<span>=4p(y-k), then the directrix is y=k-p. In this case, the parabola function is x^2=8y, so h=0, p=8/4=2, k=0. Plug the values of h, p, k, into y=k-p, the directrix is y=-2.</span>

4 0

3 years ago

Write y-5=6(x+1) in standard form and show work plz. Thanks

Nezavi [6.7K]

Answer:

x = (1/6y)+(-11/6)

Step-by-step explanation:

Step 1: Flip the equation.

6x+6=y−5

Step 2: Add -6 to both sides.

6x+6+−6=y−5+−6

6x=y−11

Step 3: Divide both sides by 6.

6x /6 = y−11 /6

x= (1 /6 y)+ (−11 /6)

Answer:

x = (1/6y)+(-11/6)

5 0

3 years ago

A product is introduced into the market. Suppose a product's sales quantity per month q ( t ) is a function of time t in months

Oksanka [162]

Answer:

$r'(t) = 298t -850$

Step-by-step explanation:

Given

$q(t) = 1000t - 150t^2$

$p(t) = 150t - t^2$

Required

$r'(t)$

First, we calculate the revenue

$r(t) = p(t) - q(t)$

So, we have:

$r(t) = 150t - t^2 - (1000t - 150t^2)$

Open bracket

$r(t) = 150t - t^2 - 1000t + 150t^2$

Collect like terms

$r(t) = 150t^2 - t^2 + 150t - 1000t$

$r(t) = 149t^2 -850t$

Differentiate to get the revenue change with time

$r'(t) = 2 * 149t -850$

$r'(t) = 298t -850$

3 0

3 years ago