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Irina18 [472]
3 years ago
6

The scatter plot shows a regression line of advertising dollars spent and sales. If the company were to spend $275,000 on advert

ising, what would be the predicted sales?
Mathematics
2 answers:
Misha Larkins [42]3 years ago
7 0

Answer: need the graph please

Step-by-step explanation:

Yuri [45]3 years ago
6 0

Answer:

IF the graph shows a various of 2 x the value or 3 x the value we select the most balanced of negative 2x the value and 3 x the value.

If the graph shows just positive x2 or x3 x 4 we select the average. 3x $275000 = $875000 or 2x $275000 =£550000 etc.

Step-by-step explanation:

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Find the value of x in the diagram
Ksenya-84 [330]

Answer:

x = 21

Step-by-step explanation:

Based on the inscribed angle theorem, we would have:

120° = 2(3x - 3)°

Solve for x

120 = 2*3x - 2*3

120 = 6x - 6

Add 6 to both sides

120 + 6 = 6x

126 = 6x

Divide both sides by 6

126/6 = x

21 = x

x = 21

6 0
3 years ago
A particular bacterium population is found to double the in 20 minutes. If a laboratory culture
insens350 [35]

The bacteria present at t=37 minutes is found to be 8.40, with no change in growth rate.

<h3>What does population growth exponentially mean?</h3>

When a population's per capita growth rate remains constant, regardless of population size, exponential growth occurs, causing the population to grow exponentially as the population increases.

Given:

P = 340

It has been discovered that a specific bacterial population doubles in 20 minutes.

k = 2/20 = 0.1

t = 37 minutes

We know that,

P = P₀e^{kt}

340   = P₀(e^{0.1*37})

340 =P₀(40.44)

P₀ = 8.40

As a result, the bacteria that will be present in t=37 minutes is found to be 8.40 with no change in growth rate.

Learn more about exponential growth here:

brainly.com/question/13223520

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4 0
1 year ago
Analyze Corey’s work to find his error. What is Corey’s mistake? He substituted 80 for x instead of y. He should have added 88.2
Anni [7]

x is the temperature and y is the number of swimmers. If there are 80 swimmers, then y = 80 instead of x = 80

This is how Corey should have solved

y = 1.505*x - 88.21

80 = 1.505*x - 88.21 <--- replace y with 80

1.505*x - 88.21 = 80

1.505*x = 80 + 88.21 <--- add 88.21 to both sides

1.505*x = 168.21

x = 168.21/1.505 <--- divide both sides by 1.505

x = 111.767

x = 111.8

If there are 80 swimmers at the pool, then the possible outside temperature is roughly 111.8 degrees F. This temperature seems awfully large, so it's possible that Corey's regression equation has limited scope; in other words, it isn't too useful if x is outside a given interval

<h2><em><u> </u></em><em><u>IF </u></em><em><u>YOU </u></em><em><u>DONOT</u></em><em><u> </u></em><em><u>WANT </u></em><em><u>TO </u></em><em><u>READ </u></em><em><u>SO </u></em><em><u>MUCH </u></em><em><u>THEN </u></em></h2>

<em><u>PLEASE</u></em><em><u> </u></em><em><u>SEE </u></em><em><u>THE </u></em><em><u>ATTACHMENT</u></em><em><u> </u></em>

4 0
3 years ago
Answers or correcting please
Mariulka [41]

Answer:

Looks right to me! Great work!

4 0
2 years ago
Find the derivative of F(x)=-x^4+4x^3+ 70 for 0&lt;=x&lt;=3
timofeeve [1]

Answer:

  -4x^3 +12x^2 for 0 < x < 3

Step-by-step explanation:

The power rule is appropriate:

  (d/dx)x^n = n·x^(n-1)

This is applied to each of the terms.

  F'(x) = -(4·x^3) +4(3x^2) +0

  F'(x) = -4x^3 +12x^2 . . . . for 0 < x < 3

__

The derivative is not defined at the endpoints of the interval, so F'(x) is only defined on (0, 3), not [0, 3].

8 0
3 years ago
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