3 years ago

TanA+tanB=sin(A+B)/cosAcosB

1 answer:

4 0

Do you need to prove that it is equal?
If so:

SinA/cosA + sinB/cosB = (sinAcosB + sinBcosA)/cosAcosB

(SinAcosB + sinBcosA)/cosAcosB = (SinAcosB + sinBcosA)/cosAcosB

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The maximum load that a crane can lift is about 39,700 pounds. What is another way to write 39,700?

Ber [7]

Answer:

number 3

Step-by-step explanation:

(3,000+900+70) = 3,970

3,970*10 = 39,700

6 0

3 years ago

Threeangles of a quadrilateral are equal and its fourth angel is 120° . Find all the angels

lilavasa [31]

Answer:

80°

Step-by-step explanation:

Three angles are equal

Let the equal angle be x

3x+120=360

3x=240

x=240/3

=80

Hence the three angles are 80∘

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2 years ago

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What is the equation of the line that passes through the points given in the table

Zepler [3.9K]

Answer:

B: y = -2x + 5

Step-by-step explanation:

-2 - 1 = -3

9 - 3 = 6

$\frac{6}{-3}$ = -2

gradient = -2

3 = 1 x -2 + c

3 = -2 + c

5 = c

y intercept = 5

equation = y = -2x + 5

so the answer is option b

7 0

2 years ago

Is the quotient of two mixed numbers positive ?

zysi [14]

It would be a fraction.

6 0

2 years ago

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Customers of a phone company can choose between two service plans for long distance calls. The first plan has no monthly fee but

alex41 [277]

Answer:

380

Step-by-step explanation:

.20x = 19 + .15x

.05x = 19

x = 380

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2 years ago