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3 years ago

This whole thing hurts my brain.

Mathematics

1 answer:

faltersainse [42]3 years ago

8 0

Answer:

1.) C. 32

2.) Stem-and-leaf plot

Step-by-step explanation:

This is a stem-and-leaf plot. The stem represents tens and the leaves represent units. To make it easier to look at, it is equivalent to this:

20, 28, 29, 29, 31, 32, 36, 41, 42

Now, to find the mean, add up all the numbers and divide the sum by the number of values.

(20 + 28 + 29 + 29 + 31 + 32 + 36 + 41 + 42)/9 = 288/9 = 32

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A parabola can be represented by the equation y2=5x

Tasya [4]

Answer:

<u>Direction open's Right </u>

Vertex: (0,0)

Focus: (5/4, 0)

axes of symmetry: y = 0

directrix: x = - 5/4

Step-by-step explanation:

Graph the parabola using the direction, vertex, focus, and axes of symmetry.

Hope this really helps u have good day :)

4 0

3 years ago

Help me please I don’t know this

ExtremeBDS [4]

its a m8 a a a a a aa aaa

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3 years ago

What is the end behavior for f(x)=4x^4+2x^3-13x^2-14x+24?

Tpy6a [65]

Answer:

This means that f(x)→∞ as x→−∞ and f(x)→∞ as x→∞.

Step-by-step explanation:

Since the leading term of the polynomial (the term in a polynomial which contains the highest power of the variable) is x4, then the degree is 4, i.e. even, and the leading coefficient is 1, i.e. positive.

This means that f(x)→∞ as x→−∞ and f(x)→∞ as x→∞.

8 0

3 years ago

A pet store sells tropical fish. One week they sell 15 anglefish, 9 tetras, 42 guppies. The owner uses ratios of sales to compar

Ivahew [28]

Answer: 15:42or simplified 5:14

Step-by-step explanation:

15 angelfish to 42 guppies

15/3= 5

42/3=14

so the ratio of 15:42 is equal to 5:14

5 0

3 years ago

A sensor output was acquired for 32 seconds at a rate of 200 Hz and spectral analysis was performed using FFT. If the data set w

VashaNatasha [74]

Complete Question

A sensor output was acquired for 32 seconds at a rate of 200 Hz and spectral analysis was performed using FFT. If the data set was split into 5 segments (each 6.4 seconds long), what is the resulting:

a)F minimum

b) F maximum

c) Frequency resolution

Answer:

a) $Fmax=100Hz$