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3 years ago

What is 62394 rounded to the nearest ten

Mathematics

1 answer:

Bumek [7]3 years ago

7 0

Answer:

62390

Step-by-step explanation:

you have to round up if it's 5 or more and round down if it's less.

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1+Sin/Cos + Cos/1+Sin = 2Sec

Bond [772]

Step-by-step explanation:

Consider the left-hand side:

$\dfrac{1+\sin{\theta}}{\cos{\theta}} + \dfrac{\cos{\theta}}{1+\sin{\theta}}$

$\:\:\:\:= \dfrac{(1+\sin{\theta})^2 + \cos^2{\theta}}{\cos{\theta}(1+\sin{\theta})}$

$\:\:\:\:=\dfrac{1+2\sin{\theta}+\sin^2{\theta} + \cos^2{\theta}}{\cos{\theta}(1+\sin{\theta})}$

$\:\:\:\:=\dfrac{2+2\sin{\theta}}{\cos{\theta}(1+\sin{\theta})} =\dfrac{2(1+\sin{\theta})}{\cos{\theta}(1+\sin{\theta})}$

$\:\:\:\:= \dfrac{2}{\cos{\theta}} = 2\sec{\theta}$

7 0

3 years ago

Which theorem is it? Answer choice below in the picture:

Ymorist [56]

Answer:

None of the above

Step-by-step explanation:

The figure3 shows 1 side and 1 angle of one triangle congruent to 1 side and 1 angle of the other triangle. We are not shown anything else, so the answer is:

None of the above

and you can't prove the triangles congruent.

5 0

2 years ago

Please help me I’m terrible at math I’ll brainliest as soon as possible and if answer is right

Blizzard [7]

Answer:

1.25

Step-by-step explanation:

Calculate the scale factor as the ratio of the corresponding sides of the image to the original.

here the image is 6.25 and the original is 5

scale factor = $\frac{6.25}{5}$ = 1.25

This represents an enlargement

4 0

3 years ago

2 Find an equation in the form y = ax? + bx + c for the parabola passing through the points. (3. – 56). (-1, - 16). (-2,- 51)

ehidna [41]

Answer:

Step-by-step explanation:

Many ways to do this in the details.

All start by writing three equations with three unknowns

-56 = a(3²) + b(3) + c

-56 = 9a + 3b + c 1)

-16 = a(-1²) + b(-1) + c

-16 = a - b + c 2)

-51 = a(-2²) + b(-2) + c

-51 = 4a - 2b + c 3)

subtract equation 2 from equation 1

-40 = 8a + 4b

--10 = 2a + b

b = -10 - 2a 4)

subtract equation 3 from equation 1

-5 = 5a + 5b

-1 = a + b 5)

substitute 4 into 5

-1 = a + (-10 - 2a)

-1 = - a - 10

a = - 9

substitute a into 4

b = -10 - 2(-9)

b = 8

substitute a and b into any of 1, 2, or 3

-51 = 4(-9) - 2(8) + c

-51 = -36 - 16 + c

c = 1

y = -9x² + 8x + 1

We can use a plotting calculator to confirm our result.

7 0

2 years ago

Will mark as brainliest for correct answer. The picture looks strange for some reason by the way.

alina1380 [7]

The third one because of the equations amplitude.

4 0

3 years ago