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4 years ago

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a shoe store that sells only boots and sandals had 20% more pairs of boots than sandals in its inventory . After recieving a shi

pment of 20 more pairs of sandals , the store had a total of 306 pairs of shoes. How many pairs of boots did the store have

1 answer:

astraxan [27]4 years ago

4 0

Answer:

20 i think

Step-by-step explanation:

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In what direction and by how many units is the graph of f(x) = −7 sin(3x + π) − 2 vertically and horizontally shifted?

aev [14]

Answer:

Option 1. Down 2, right pi over 3.

Step-by-step explanation:

In a given function f(x) = -7 sin(3x+π)-2 we have to find the shift horizontally and vertically.

As we know in a sine equation represented as y = a sin(bx+c) +d

Amplitude of the wave = a

Period = $\frac{2\pi }{b}$

Horizontal shift = $\frac{\pi }{b}$

Vertical shift = d

From the given sine function we can get the following values

a = 7

period = $\frac{2\pi }{3}$

horizontal shift = $\frac{\pi }{3}$ in the right side since it's with positive sign.

Vertical shift = -2 down with 2 ( since it's with negative sign)

Therefore Option 1 is the correct one.

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3 years ago

Find value of variable

Nezavi [6.7K]

<span>Step 1: Identify the variables.
Step 2: Add/Subtract whole numbers so they're all on one side.
Step 3: Add/Subtract Variables so they're all on one side.
Step 4: Multiply /Divide to get the variable by itself.
<span>Step 5: Check your work.</span></span>

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4 years ago

How do you do this don't understand it or how

Orlov [11]

Basically all you have to do is 5,000 x 5% = 250 Hope this helps.

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3 years ago

Data collected on the discharge of the Colorado River and speed are given in the table:

Julli [10]

Answer:

0.67; The least-squares regression line, given by ŷ = 3.95 + 0.67x, is not a good fit for the data.

Step-by-step explanation:

Plot the data in a spreadsheet and insert a trendline. The line of best fit is y = 0.67x + 3.95. The r² value is 0.67.

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4 years ago

Read 2 more answers

A sinusoidal function whose period is 4π, maximum value is 6, and minimum value is -2 has a y intercept of 6. What is the equati

IRINA_888 [86]

Equation of the function: f(x) = 4 sin (x/2) + 6.

<h3>What is sinusoidal function ?</h3>

The term sinusoidal is used to describe a curve, referred to as a sine wave or a sinusoid, that exhibits smooth, periodic oscillation. It is named based on the function y=sin(x).

Given: max value= 6, min value= -2, y-intercept= 6.

As, standard form f(x) = A sin (ωx +φ) + k,

where A is the amplitude, ω is the angular velocity with ω=2πf.

Now,

A = |6- (-2)/2|

A = |6 +2/2| = 8/2

A = 4

Also, ω:

The period of a sinusoidal is T = 1/f

so, f = 1 / T

ω = 2πf

ω = 2π ( 1/T) with T = 4π

ω = 2π (1/(4π) = 2π (2)

ω = 1/2

The y-intercept k = 6

So, equation with values A =4, ω = 1/2, k = 6, φ = 0.

f(x) = A f(x)

f(x) = A sin (ωx +φ) + k

f(x) = 4 sin (x/2) + 6.

Hence, equation of the function f(x) = 4 sin (x/2) + 6.

Learn more about this concept here:

brainly.com/question/26315885

#SPJ1

4 0

2 years ago