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3 years ago

5

The bedroom of a house is 1,200 cubic meters. We know that there are 3.4 x 109 particles of dust per cubic meter. How many parti

cles of dust are present in the bedroom of the house

1 answer:

Brrunno [24]3 years ago

3 0

Norteo lo se
awdwqmedowmesdsaa sddasdasdasd asdasd asdqasd asd

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Factor the algebraic expression below in terms of a single trigonometric function. sin 2x + sin x - 2

Pie

Answer:

The factored form is (sin x +2)(sin x-1)

Step-by-step explanation:

We have been given the trigonometric function $\sin^2 x +\sinx-2$

We can factor this by AC method. In AC method we multiply the term a and c and then write the middle term b in such a way that the sum/difference is equal to the product 'ac'

Using the method, we can write sinx as 2sinx -sinx

$\sin^2 x +2\sinx-\sin x-2$

Now, we group the first two terms and the last two terms

$(\sin^2 x +2\sinx)+(-\sin x-2)$

Now, we take GCF from each group

$\sin x(\sin x +2)-1(\sin x+2)$

Factor out (sinx+2)

$(\sin x +2)(\sin x-1)$

Therefore, the factored form is (sin x +2)(sin x-1)

7 0

3 years ago

Read 2 more answers

Which number line shows the solutions of 13x−8≥x+6?

Leviafan [203]

$13x - x \geqslant 6 + 8 \\ 12x \geqslant 14 \\ x \geqslant \frac{14}{12} = \frac{7}{6 } = 1.167 \\ x \geqslant 1.167$

i hope it helps u

4 0

3 years ago

Read 2 more answers

Interest paid on £2500 at an interest at an interest rate of 15%

postnew [5]

Answer:

£375

Step-by-step explanation:

Amount = £2500
Interest rate = 15%

<u>Interest </u>

£2500*15/100 = £375

8 0

3 years ago

Simplify the expression 3(9+4x−5). <br><br> ill give brainlist

Mazyrski [523]

12x+12 step by step below

6 0

2 years ago

Which equation represents a line with a slope of -2/3 that passes through point (5, -2)?

serg [7]

Answer:

c) $2x + 3y = 4$

Step-by-step explanation:

−2 = −⅔[5] + b

−3⅓

1⅓ = b

y = −⅔x + 1⅓

Then convert to Standard Form:

y = −⅔x + 1⅓

+⅔x + ⅔x

__________

⅔x + y = 1⅓ [We do not want fractions in our Standard Equation, so multiply by the denominator to get rid of it.]

3[⅔x + y = 1⅓]

$2x + 3y = 4$

* 1⅓ = 4⁄3

I am joyous to assist you anytime.

8 0

2 years ago