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Anton [14]
3 years ago
14

Please hurry, 15 points and it's overdue.

Mathematics
1 answer:
valina [46]3 years ago
4 0

Answer:

The relationship is positive.

The model predicts a score of 60.

Not sure what part b is.

Step-by-step explanation:

Since while the money spent on advertising increases while the items sold increases, we have a positive relation between both variables.

By looking at where 30 is on the graph, we can see it lines up with 60,the middle between $40 and $80 on the y axis and so we know this is the cost associated with this value.

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Identify the properties of the given quadratic.
Komok [63]

Answer:

see explanation

Step-by-step explanation:

A quadratic function in standard form is

y = ax² + bx + c (a ≠ 0 )

Given

y = - 3x² + 6x + 17 ← compare coefficients with standard form, then

a = - 3, b = 6, c = 17

Given the quadratic in standard form the the equation of the axis of symmetry is

x = - \frac{b}{2a} = - \frac{6}{-6} = 1

Equation of axis of symmetry is x = 1

4 0
3 years ago
Given: P is a point on the perpendicular bisector, I of MN.<br> Prove: PM = PN
Hatshy [7]

Answer:

Step-by-step explanation:

I can't make specific statements about the proof because the midpoint is missing.

Givens

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The Perpendicular Bisector is is common to both triangles.

Therefore the two triangles are congruent by SAS

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3 years ago
If the radius of a sphere is increased by a factor of 3, then the volume of the sphere is increased by a factor of
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V = 4/3 π r³
E. 27 ..............
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What two numbers make on thousand
Igoryamba

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Step-by-step explanation:

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Read 2 more answers
grace and her friends were to roll the two dice 100 times, how many of the 100 times could they expect to roll the same number o
LenaWriter [7]

Answer:

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The expected number of rolls of this type in 100 pairs of dice rolls is 100∗636

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