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3 years ago

-6+-4s+-2 What is the answer to this question

Mathematics

1 answer:

dexar [7]3 years ago

4 0

Answer:

-12s

Step-by-step explanation:

-6+-4s=-10s

-2+-10s=-12s

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Prove that : sinA/1+cosA + 1+cosA/sinA=2cosecA

tekilochka [14]

Step-by-step explanation:

$\frac{sinA}{1+cosA} +\frac{1+cos}{sinA} =2cosec\\\\\\\frac{sin^{2}A+(1+cos)^{2} }{sinA(1+cosA)} \\\\$

$\frac{sin^{2}A+1+cos^{2}+2cos}{sinA(1+cosA)} \\\\$ and we have $sin^{2}+cos^{2} =1$

so $\frac{1+1+2cosA }{sinA(1+cosA)} \\\\$

$\frac{2+2cosA }{sinA(1+cosA)} \\\\$

$\frac{2(1+cosA)}{sinA(1+cosA)} \\\\$

$\frac{2}{sinA}$ we have $\frac{1}{sin}=cosec\\$

Finally $2cosecA$

I really hope this helps coz it took much time

3 0

3 years ago

If f(x) = 2x2 + 1, what is f(x) when x = 3? O 1 O 7 O 13 O 19

Slav-nsk [51]

Answer:

Step-by-step explanation:

f(x) = 2x^2 + 1

Let x= 3

f(3) = 2 * (3)^2 +1

Exponents first

= 2 * 9+1

Then multiply

= 18+1

Add

= 19

6 0

3 years ago

At the end of a year, the gross debt of a country stood at about $15 trillion. Express this amount in dollars per person, ass

Ilia_Sergeevich [38]

Answer:

The country's debt is $ 48,543.68 per person.

Step-by-step explanation:

Given that at the end of a year, the gross debt of a country stood at about $ 15 trillion, to determine this amount in dollars per person, assuming that the population of the country is about 309 million, the following calculation must be done:

15 trillion = 15,000,000,000,000

15,000,000,000,000 / 309,000,000 = X

15,000,000 / 309 = X

48,543.68 = X

Therefore, the country's debt is $ 48,543.68 per person.

4 0

3 years ago

PLEASE ANSWER ASAP! ANSWER MUST MUST MUST MMMMUUUUSSSSTTTTTT INCLUDE AN EXPLANATION IN ORDER TO RECEIVE POINTS AND THE BRAINLIES

Aleks [24]

The answer is 4/7. see it from the multiple of 3...3*4 =12 and 3*7= 21. So this is the answer: 4/7.

4 0

3 years ago

A football player weighed 170 2/3 pounds in May. During the summer, he gained 25 5/2 pounds. During the first week of fall pract

Anettt [7]

Answer:

183 2/3 lb i think

Step-by-step explanation:

8 0

3 years ago