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3 years ago

D(t)

Mathematics

1 answer:

Doss [256]3 years ago

6 0

Ummm gimme a sec, Imma try to solve this and answer in a bit

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Help me with this I will give you brainlist

pav-90 [236]

Answer:

3/20

Step-by-step explanation:

Of means multiply. When it says 3/10 of 4/8, it just means 3/10*4/8 which when multiplied across gives you 12/80. Which can be simplified to 3/20.

Hope this helps.

3 0

3 years ago

(20 points)Solve the equation cos x = sin (x + 22)

Law Incorporation [45]

Answer:

$\bold{x = 34^\circ}$

Step-by-step explanation:

Given:

$cos x = sin (x + 22^\circ)$

To solve:

The given equation.

Solution:

First of all, let us consider an important property of sine and cosine.

$sin(90^\circ-\theta )=cos\theta$

$cos(90^\circ-\theta )=sin\theta$

We can apply above property to solve for $x$ as per given equation.

$cos x = sin (x + 22^\circ)$

Changing $cosx$ to sine form:

$cosx=sin(90^\circ-x)$

$cosx=sin(90^\circ-x) = sin(x+22^\circ)$

$\therefore 90^\circ-x=x+22^\circ\\\Rightarrow 90^\circ-22^\circ=x+x\\\Rightarrow 2x=68^\circ\\\Rightarrow \bold{x = 34^\circ}$

So, solution to the equation $cos x = sin (x + 22^\circ)$ is:

$\bold{x = 34^\circ}$

7 0

3 years ago

What is the answer to 7x+3 (4x-8)=109

IceJOKER [234]

7x+3(4x-8)=109 7x+12x-24=109 19x-24=109 19x=109+24 19x=133 X=133÷19 X=7

7 0

4 years ago

Complete the following sentences to compare the two functions. Over the interval [2, 6], the average rate of change of v is the

lubasha [3.4K]

it's look like heaven bkl

4 0

2 years ago

What is 25×10 to the power of 6 in standard form

Vsevolod [243]

So, 10^6 = 1,000,000 and 25*1,000,000 is equivalent to 25,000,000.

6 0

3 years ago