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3 years ago

Hich rule about the sign of the quotient of positive and negative decimals is correct?

Mathematics

2 answers:

Galina-37 [17]3 years ago

5 0

Answer:

That Will be B

Step-by-step explanation:

Because it is all negative when you divide by the positive number

MrRissso [65]3 years ago

3 0

B is the right answer

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In a four year period, about 80,000 acres of coastal wetlands in the United States are lost each year. What integer represents t

klemol [59]

Answer:

-320000

Step-by-step explanation:

Given

Lost Land = 80,000 acres yearly

Duration 4 years

Required

The total change

Represent the total change with y;

y is calculated as thus;

$y = Lost\ Land * Duration$

$y = -80,000 acres * 4$

$y = -320000\ acres$

<em>Hence, a total of 320000 acres were lost during the period</em>

7 0

3 years ago

Can somebody help me with this. Will mark brainliest!

alexandr402 [8]

Answer:

The length of FG is 2.

Step-by-step explanation: B and F are the same point, just reflected, so BC=FG.

7 0

3 years ago

How much would $500 invested at 9% interest compounded annually be

Ray Of Light [21]

Answer:

I think 705.79 if I did it right

Step-by-step explanation:

500(1+.09/1)^4 = 705.79

3 0

3 years ago

(1+tanx)/(sinx+cosx)=secx

jek_recluse [69]

$\frac{1+\tan x}{\sin x+\cos x}=\sec x$ is proved

<h3><u>Solution:</u></h3>

Given that,

$\frac{1+\tan x}{\sin x+\cos x}=\sec x$ ------- (1)

First we will simplify the LHS and then compare it with RHS

$\text { L. H.S }=\frac{1+\tan x}{\sin x+\cos x}$ ------ (2)

$\text {We know that } \tan x=\frac{\sin x}{\cos x}$

Substitute this in eqn (2)

$=\frac{1+\frac{\sin x}{\cos x}}{\sin x+\cos x}$

On simplification we get,

$=\frac{\frac{\sin x+\cos x}{\cos x}}{\sin x+\cos x}$

$=\frac{\sin x+\cos x}{\cos x} \times \frac{1}{\sin x+\cos x}$

Cancelling the common terms (sinx + cosx)

$=\frac{1}{c o s x}$

We know secant is inverse of cosine

$=\sec x=R . H . S$

Thus L.H.S = R.H.S

$\frac{1+\tan x}{\sin x+\cos x}=\sec x$

Hence proved

5 0

3 years ago

George has opened a new store and he is monitoring its success closely. He has found that this store’s revenue each month can be

Klio2033 [76]

Answer:

C) The new store will have a profit of $4500 after its fourth month in business

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Step-by-step explanation:

3 0

3 years ago

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