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3 years ago

A tortoise is walking in the desert. It takes

Mathematics

2 answers:

LiRa [457]3 years ago

8 0

1.6 meters per minute

work:
6.4meters/ 4 minutes = 1.6 meters per minute

dlinn [17]3 years ago

7 0

96 meters per hour :)

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For what value of x is sin x = cos 19º, where 0°< x < 90°?

KonstantinChe [14]

Answer:

71°

Step-by-step explanation:

The cosine of an angle is equal to the sine of its complement:

cos(19°) = sin(90° -19°) = sin(71°)

Comparing to the given expression, we see that x = 71°.

7 0

3 years ago

Given f(x)=x^2+5 and g(x)=2x^3-1 find (f/g)(-3)

AlekseyPX

For this case we have the following functions:

$f (x) = x ^ 2 + 5\\g (x) = 2x ^ 3-1$

By definition of composition of functions we have:

$(f / g) (x) = \frac {f (x)} {g (x)}$

Then substituting:

$f (-3) = (- 3) ^ 2 + 5 = 9 + 5 = 14\\g (-3) = 2 (-3) ^ 3-1 = 2 (-27) -1 = -54-1 = -55$

So:

$(f / g) (- 3) = \frac {14} {- 55} = - 0.25$

Answer:

$(f / g) (- 3) = \frac {14} {- 55} = - 0.25$

7 0

3 years ago

Are the triangles shown congruent?

boyakko [2]

Answer:

the second one i think

Step-by-step explanation:

because both have 2 sides with 1 angle

5 0

3 years ago

A singer makes 2% royalties on the sales of her album. Which proportion could be used to determine her sales if she made $44,000

Nikitich [7]

I believe it is the second one :)

8 0

3 years ago

castortr0y [4]

18-B
I'm not so sure about 19 I know the longest someone can have a loan it's up to 7 years but I would have no idea about credit reports but I would guess they would almost be the same
hope I helped somewhat

6 0

3 years ago