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4 years ago

HELP ASAP!!!!!!!!!!!!!!

Mathematics

2 answers:

gizmo_the_mogwai [7]4 years ago

8 0

Answer: is it a function-yes

why: none of the y values are the same

Step-by-step explanation:

Vlada [557]4 years ago

8 0

1. yes , the x values aren’t the same, domain (10,-2,5,4) , range (7,4,3,10)
2. yes , the x values differ, domain (-3,-1,0,1,3), range (3,1,0,1,4)

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What is the vertex of the graph of the function f(x) = x2 − 4x?

Vsevolod [243]

Answer:

(2, -4).

Step-by-step explanation:

x^2 - 4x

= (x - 2)^2 - 4.

So the vertex is at

(2, -4).

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3 years ago

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Quadrilateral ABCD is inscribed in a circle. Find the measure of each of the angles of the Quadrilateral. Show your work. ( Plea

oksano4ka [1.4K]

Answer:

Shown Below.

Explanation:

opposite angles in a quadrilateral sum up to 180°

total interior angles in a quadrilateral is 360°

solve for x:

x - 2 + x + 2 = 180°

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x = 90°

solve for each angle:

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x + 2

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x - 10

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4th

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3 years ago

The canoe costs $96 for 8 hours. How much does it cost per hour?

vesna_86 [32]

Answer:

$12

Step-by-step explanation:

just divide 96÷8=12

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3 years ago

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How many hundreds are in 1,000

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4 years ago

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"How much do students pay, on average, for textbooks during the first semester in college? From a random sample of 400 students

dezoksy [38]

Answer: The margin of error = 3.71, confidence interval = (354.04, 361.46) and it means that mean cost is lies within the confidence interval.

Step-by-step explanation:

Since we have given that

Sample size = 400

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Standard deviation = $37.89

At 95% confidence level, z = 1.96

We first find the margin of error.

Margin of error is given by

$z\times \dfrac{\sigma}{\sqrt{n}}\\\\=1.96\times \dfrac{37.89}{\sqrt{400}}\\\\=3.71$

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$\bar{x}\pm \text{margin of error}\\\\=357.75\pm 3.71\\\\=(357.75-3.71,357.75+3.71)\\\\=(354.04,361.46)$

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7 0

4 years ago