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2 years ago

The fact that sin(150°) = .5 and sin(-150°) = -.5 implies that the sine function is which type of function?

1 answer:

7 0

Answer: Choice A) Odd

The function sin(x) is odd because sin(-x) = -sin(x) for all values of x

As the example shows, sin(150) = 0.5 and sin(-150) = -0.5, so this shows sin(-150) = -sin(150).

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Seth traveled 1 mile in 57.1 seconds. About how fast does Seth travel I. Miles per hour?

enyata [817]

57.1 seconds = 57.1 seconds * $\frac{1minute}{60seconds} * \frac{1hour}{60minutes}$ = 0.01057 hour
1 mile / 57.1 seconds = 1 mile / 0.01057 hour = 94.57 miles/hour

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3 years ago

Valentina is choosing cutlery with which to eat dinner. There are 2 knives and 10 forks to

Paul [167]

Answer:

it would be able to make 20 different sets. not at the same time though. you would only be able to make 2 at one time

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2 years ago

8r+9r-11r+7r what is the answer I have to turn it in today!!

Drupady [299]

Answer:

13r

Step-by-step explanation:

8+9=17-11=6+7=13

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2 years ago

Read 2 more answers

If AB = 10, AD = 8, and AE = 12, what is the<br> length of EC?

Karolina [17]

Answer:

AB is 16 units.

Step-by-step explanation:

Given:

AE = EC

BF = FC

EF = 8 and DF = 10

To Find:

AB = ?

Solution:

Mid Point Theorem:

The Midpoint Theorem states that "the segment joining two sides of a triangle at the midpoints of those sides is parallel to the third side and is half the length of the third side".

AE = EC .....Given

Therefore E is the Mid Point of AC.

BF = FC .....Given

Therefore F is the Mid Point of BC.

Therefore,

EF || AB ........................Mid Point Theorem.

..............Mid Point Theorem.

Substituting the values we get

Therefore AB is 16 units.

Step-by-step explanation:

6 0

3 years ago

8. Is the following statement true or false? Justify your conclusion. If a and b are nonnegative real numbers and a + b =0, then

atroni [7]

Answer:

If $a + b = 0$ then $a = 0$ and $b =0$

a | b | a + b (answer)

0 | 0 | 0

0 | 1 | 1

0 | 2 | 2

1 | 0 | 1

2 | 0 | 2

1 | 1 | 2

2 | 1 | 3

Step-by-step explanation:

Considering the following conditions for the real numbers:

$a\geq 0\\b\geq 0$

Following the rules of these in-equations, it is possible to deduce:

$a + b \geq 0$

Then, if the proposed statement is:

$a + b = 0$

The conditions above shall comply the requirements established, but first, analyzing the statement:

If $a \geq 0$ and $b \geq 0$ then $a + b \geq a$ , $a + b \geq b$ and $a + b \geq 0$ .

If $a = 0$ and b a non negative real number, then $a + b \geq b$ , but because to $a = 0$ , then $a + b = b$ . Due to the commutative property of sums, the same behavior will be presented if $b = 0$ and a a non negative real number.

According to that, if $a + b = 0$ , then $a = 0$ and $b = 0$ .

7 0

2 years ago