All categories

3 years ago

Simplifly3/4(-10+2/5)?

Mathematics

1 answer:

BigorU [14]3 years ago

8 0

Answer: 7.2000

The zeros just keep repeating

You might be interested in

What are the explicit equation and domain for an arithmetic sequence with a first term of 5 and a second term of 2?

Citrus2011 [14]

The easiest way to answer this is to try all choices, plug in values for the 1st term and 2nd term then check if the answer matches with 5 and 2. (n = 1 and n = 2)

We know that n starts with 1 because that is our 1st term, we do not have 0th term, therefore that leaves us with 2 choices.

Choice 1: an = 5 − 2(n − 1); all integers where n ≥ 1

n = 1

a1 = 5 – 2 (1 – 1) = 5 – 2 (0)

a1 = 5

n = 2

a2 = 5 – 2 (2 – 1) = 5 – 2 (1)

a2 = 3 (FALSE!)

Choice 2: an = 5 − 3(n − 1); all integers where n ≥ 1

n = 1

a1 = 5 – 3 (1 – 1) = 5 – 3 (0)

a1 = 5

n = 2

a2 = 5 – 3 (2 – 1) = 5 – 3 (1)

a2 = 2 (TRUE)

Therefore the correct answer is:

an = 5 − 3(n − 1); all integers where n ≥ 1

8 0

4 years ago

Read 2 more answers

*HELP*

Harlamova29_29 [7]

Answer:

96 dollars and 50 cents

Step-by-step explanation:

5 0

3 years ago

20 is 40% of what number

tensa zangetsu [6.8K]

Is means equal

of means multiplication

so

20 = 40% x a

40% = 40/100 = 4/10 = 2/5

So

20 = 2/5 x a

Multiply both sides by 5/2

20 x 5/2 = a

10 x 5 = a

a =50

So your final answer is $\boxed{\bf{50}}$

5 0

3 years ago

Read 2 more answers

Is 1/2*4/5 less than 4/5

kati45 [8]

No hope this helps bc it’s being multiplied and even then u simplify

4 0

3 years ago

Find dy/dx when y = Ln (sinh 2x). A. 2 cosh 2x B. 2 sech 2x C. 2 coth 2x D. 2 csch 2x

givi [52]

The function given is a composite function. Let's work from the outside in:
$y=(ln(sinh(2x)))$

First step:
$\frac{d}{dx}[y]= \frac{d}{dx}[ln(sinh(2x))]$

Now, let's work it out:
$\frac{dy}{dx} = \frac{1}{sinh(2x) } * \frac{d}{dx}[sinh(2x)]$

Next step:
$\frac{dy}{dx} = \frac{1}{sinh(2x) } * cosh(2x) * \frac{d}{dx}[2x]$

Next step:
$\frac{dy}{dx} = \frac{1}{sinh(2x) } * cosh(2x) *2$

Simplify:
$\frac{dy}{dx} = \frac{2cosh(2x)}{sinh(2x) }$

Simplify further:
$\frac{dy}{dx} = 2 (\frac{cosh(2x)}{sinh(2x)})$

Remember that:
${\frac{cosh(x)}{sinh(x)} = coth(x)$

So, your final answer is:
$\boxed{ \frac{dy}{dx} = 2coth(2x) }$

So, your answer is C. Hope I could help you!

8 0

4 years ago

Simplifly3/4(-10+2/5)?​

Simplifly3/4(-10+2/5)?