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vlada-n [284]
3 years ago
7

Plz help, this question is in khan academy

Mathematics
1 answer:
lesya [120]3 years ago
6 0
I’m not sure but try, 31.5
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What is the amplitude of this function f(x) ? f(x)=34cos(3x)+4
jeyben [28]

Answer:

The amplitude is 34. So therefore your answer is 34.

Step-by-step explanation:

Vertical Shift: 4

Amplitude: 34

Period: 2pi/3

3 0
3 years ago
6r-r+8(15-r)+23-6 solve
lys-0071 [83]
Your answer is -3r + 137

thats the answer i think
4 0
3 years ago
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Help ! solve the following system of equations <br><br> -9x+2y=-13<br><br> 2x-9y=20
Stella [2.4K]

Answer: x = 1, y = -2

Step-by-step explanation:

-9x+2y=-13

x= 13/9 + 2/9y

2x-9y=20

2(13/9+2/9y)-9y=20

<em>Substitute y with -2.</em>

<em />

x= 13/9+2/9(-2)

<em>After solving you'll see that 1 is a possible solution for x.</em>

<em />

Check your answer

-9x+2y=-13

-9x1+2(-2) = -13

2x-9y=20

2x1-9(-2) = 20

-13 = -13

20 = 20

Therefore, x=1 and y=-2

5 0
3 years ago
Here are the prices, rounded to the nearest dollar, of the most frequently purchased gifts in a gift store.
Mariulka [41]
An outlier is a datapoint outside of the first or third quartile +/- 1.5 the inter quartile range

25 33 39 40 41 41 45 46 48 49 51 52 67 73 79

46 is at the center-> median
everything left of it:
25 33 39 40 41 41 45
40 at center=Q1
right of Q2:
48 49 51 52 67 73 79
52 at center=Q3

IQR=Q3-Q1=52-40=12

Q1-1.5*IQR=40-1.5*12=40-18=22
Q3+1.5*IQR=52+1.5*12=52+18=60

so everything <22 or >60 are outliers

so 67,73 and 79 are outliers
4 0
3 years ago
Ratios! I need help, please! I'm really bad at Math
nekit [7.7K]

Answer:

first would be 8

second is 12

third is 16

last is 6

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
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