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3 years ago

What is the solution for the equation sinx=cosx?

Mathematics

1 answer:

viva [34]3 years ago

4 0

Complementary angles their sin and cos equal
Thus,
x+x=90
2x=90
x=45 degrees

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I think of a number , multiply it by 3, add 4 and square the result

bazaltina [42]

Answer:

${(3x + 4)}^{2}$

Step-by-step explanation:

thinked number = x

multiply by 3

$x \times 3 \\ = 3x$

add 4

$3x + 4$

square the result

${(3x + 4)}^{2}$

hope this helps

brainliest appreciated

good luck! have a nice day!

4 0

3 years ago

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What I’d the first step? How do I find angle A?

BartSMP [9]

Answer:

charity activity trivia señora Sonia de warrior Gloria Delaware 853

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3 years ago

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b. Sixty-five pounds of candy was divided into four different boxes. The second box contained twice the amount of the first box.

Ainat [17]

First box = 14 pounds

Second box = 2x = 28 pounds

Third Box = x+2= 16 pounds

Fourth box = x/2 = 7 pounds

Step-by-step explanation:

Here we have , Sixty-five pounds of candy was divided into four different boxes. The second box contained twice the amount of the first box. The third box contained two more pounds than the first box. The last box contained one-fourth the amount in the second box. We need to find How much candy was in each box. Let's find out:

We have a total of 65 pounds of candy ! Let in first box we have x pounds so , second box contained twice the amount of the first box i.e.

⇒ $2x$

The third box contained two more pounds than the first box i.e.

⇒ $x+2$

The last box contained one-fourth the amount in the second box i.e.

⇒ $(\frac{1}{4})2x = \frac{x}{4}$

Therefore , Sum of pounds of candy are :

⇒ $\frac{x}{2} +x+2+2x+x=65$

⇒ $\frac{x}{2} +4x=63$

⇒ $\frac{9x}{2}=63$

⇒ $x=63(\frac{2}{9} )$

⇒ $x=14$

Therefore , Candy in each box is :

First box = 14 pounds

Second box = 2x = 28 pounds

Third Box = x+2= 16 pounds

Fourth box = x/2 = 7 pounds

8 0

4 years ago

For the years between 1980 and 2012, the function c(x)=0.006x^3−0.48x^2+12.8x+85 approximates the number of countries that atten

Evgesh-ka [11]

Answer:

199

Step-by-step explanation:

2004 is 24 years after 1980. The polynomial remainder theorem tells you the remainder from division by x-24 will be the function value c(24). We can find the remainder/function value by evaluating the function rewritten to Horner form:

c(x) = ((0.006x -0.48)x +12.8)x +85

c(24) = ((0.006(24) -0.48)(24) +12.8)(24) +85 = (-.336(24) +12.8)(24) +85

= 4.736(24) +85 = 198.664

c(24) ≈ 199

The approximate number of countries attending the 2004 Olympics was 199.

5 0

3 years ago

HELP ME PLSSSSSS if f(x) = 2x-3/5 , which of the following is the inverse of f(x)?

neonofarm [45]

The answer is (5x+3)/2 . So it’s A .

8 0

3 years ago