3 years ago

Number 18 idk what to do help plz and fast

Mathematics

1 answer:

stepan [7]3 years ago

7 0

It is right it is C 454.5

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Suppose A ={2, 5, 7, 9, 13, 25, 26}. True or False: <br><br> {1,2,3}⊆A

lbvjy [14]

Step-by-step explanation:

n(A) is the number of elements is A, sometimes written |A|. I count 7. n(A)=7

13 is among the elements of A, so 13 ∈ A is TRUE

26 is among the elements of A, so 26 ∉ A is FALSE

10 isn't in A, so 10 ∉ A is TRUE

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5 0

3 years ago

NO LINKS OR ELSE YOU'LL BE REPORTED!Only answer if you're very good at Math.

andreev551 [17]

Answer:

$D.\ y = 3\sin(2(x + \frac{\pi}{4}))$

Step-by-step explanation:

Given

$A = 3$ --- Amplitude

$C = \frac{\pi}{4}$ --- Right phase shift

Required

Identify the function

A sinusoidal function is defined as:

$y = A\sin(B(x + C)) + D$

Substitute values for A and C

$y = 3\sin(B(x + \frac{\pi}{4})) + D$

By comparison, only option (D) has the above format where

$y = 3\sin(2(x + \frac{\pi}{4}))$

Hence (D) is correct

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3 years ago

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sergejj [24]

Answer:

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3 years ago

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slava [35]

7. is the answer to your question

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3 years ago

What is the double of a hundred?

larisa86 [58]

Answer:

200

Step-by-step explanation:

100 * 2 = 200

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