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3 years ago

what setting should be used when doing sum and difference identities with a calculator degrees or radians

Mathematics

1 answer:

Cerrena [4.2K]3 years ago

7 0

Answer:

Radians

Step-by-step explanation:

If you use degrees, you have to put an annoying 2π/360 every time you try to simplify. This is why in calculus, we work with radians for all functions of derivatives, since its much easier to work with, and you dont have to write that annoying constant.

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Slope intercept from two points (3,-8) and (6,-4)

sukhopar [10]

Answer:

(3,4)

Step-by-step explanation:

(6-3)(-4(--)+3)

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4 years ago

Ok, is 0 really a number? It is neither a negative or a positive number, you never count starting on 0, and its not a even numbe

Kisachek [45]

Answer: 0 is a number though it is not an even or an odd number we have to count from zero always 0 is always the first number. 0 is also a whole number

I hope I helped

4 0

2 years ago

Read 2 more answers

what is 3/4 ÷ 3 3/4. I have to write at least 20 characters so I am going to write random stuff. KLJHGUFYTDXRRTCFYVGUBHINJONIHKU

Julli [10]

1/5 is the answer. How to slove: You turn the mixed number into an improper fraction which would be 15/4 =, because 4(3)= 12 + 3 = 15 and the denominator stays the same so it would be 15/4. Next, multiply ( the but dont forget to "flip" the improper fraction so it's 4/15) 3/4(4/15)= 1/5

6 0

3 years ago

?????????????????????????????????????

Basile [38]

3. adjacent, x=49
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5 0

3 years ago

A scooter travels 18 miles in the same time a bike covers 8 miles. If the rate of the scooter is two miles per hour than twice t

blsea [12.9K]

ANSWER:

A scooter travels 18 miles in the same time a bike covers 8 miles.The rates of both scooter and bike are 8 miles per hour and 18 miles per hour

SOLUTION:

Given, a scooter travels 18 miles in the same time a bike covers 8 miles.

The rate of the scooter is two miles per hour than twice the rate of the bike

We need to find both rates of scooter and bike.

Let the speed of scooter be x and speed of bike be y.

And, time taken to travel be t.

Then, for scooter:

$\bold{distance = speed \times time}$

$18 = x \times t$

$t=\frac{18}{x}$ --- (1)

For bike:

$\bold{distance = speed \times time}$

$8=y \times t$

$\mathrm{t}=\frac{8}{y}$ --- (2)

Now, equate both (1) and (2)

$\frac{18}{x}=\frac{8}{y}$

On cross-multiplication we get

18y = 8x

4x – 9y = 0 ---- (3)

We also know that, rate of the scooter is two miles per hour than twice the rate of the bike.

x = 2 + 2y ---- (4)

Now substitute (4) in (3)

4(2 + 2y) – 9y = 0

8 + 8y – 9y = 0

9y – 8y = 8

y = 8.

Again substitute y value in (4)

x = 2 + 2(8) = 2 + 16

x = 18.

Hence, the rates of both scooter and bike are 8 and 18 miles per hour

8 0

4 years ago