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3 years ago

Anyone know this if not that’s ok :)

Mathematics

2 answers:

PIT_PIT [208]3 years ago

4 0

Answer:

First and last options are correct answers

Step-by-step explanation:

domain: $x\geqslant 0$ because number of minutes can not be negative.

range: $y\geqslant 20$ because 20 is the least possible y- value for 0 minutes.

koban [17]3 years ago

4 0

Answer:

...

Step-by-step explanation:

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I am confused about how to do this problem and I don't think it should be hard, but I just don't know how to approach it, so if

solniwko [45]

Answer:

a) (0.555, 0) and (6, 0)

b) r = -3 and r = 1.8

c) (0.875, 0.676)

d) (0, 1.235)

Step-by-step explanation:

Set each term in the numerator and denominator equal to 0 and find r.

In the numerator:

r = 7/8, 5/9, or 6

In the denominator:

r = 9/5, 7/8, or -3

Zeros in the numerator that aren't in the denominator are r-intercepts.

Zeros in the denominator that aren't in the numerator are vertical asymptotes.

Zeros in both the numerator and the denominator are holes.

a) (0.555, 0) and (6, 0)

b) r = -3 and r = 1.8

c) Evaluate m(r) at r = 7/8. To do that, first divide out the common term (-8r + 7) from the numerator and denominator.

m(r) = (-9r+5)² (r−6)² / ( (-5r+9)² (r+3)² )

m(⅞) = (-9×⅞+5)² (⅞−6)² / ( (-5×⅞+9)² (⅞+3)² )

m(⅞) = (-23/8)² (-41/8)² / ( (37/8)² (31/8)² )

m(⅞) = (-23)² (-41)² / ( (37)² (31)² )

m(⅞) = 0.676

The hole is at (0.875, 0.676).

d) Evaluate m(r) at r = 0.

m(0) = (-9×0+5)² (0−6)² / ( (-5×0+9)² (0+3)² )

m(0) = (5)² (-6)² / ( (9)² (3)² )

m(0) = 1.235

The m(r)-intercept is (0, 1.235).

5 0

3 years ago

There are 4 cards with a picture of a rose and 3 cards with a picture of a daisy. Fiji keeps all the cards face down on the tabl

Rainbow [258]

There are 4 cards with a picture of a rose and 3 cards with a picture of a daisy.

After one rose card is removed, the remaining cards are 3 cards with a picture of a rose and 3 cards with a picture of a daisy. A card is chosen at random,

the probability that the chosen card has rose on it is

$\frac{3}{6} =\frac{1}{2}$ .

The correct choice is (A).

4 0

3 years ago

If Adam's plane traveled at a constant speed of 375 miles per hour for six hours, how far did the plane travel?

Simora [160]

His plane traveled 2,250 miles because if you multiply 375 * 6 = 2,250

5 0

4 years ago

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Which expression is equivalent to sec2xcot2x? sin2x csc2x

Ann [662]

What are the multiple choices that homes with it

7 0

3 years ago

The floor in the tool room measures 13 feet 3 inches by 11 feet 5 inches. What is the total area of the room in square feet? (Re

brilliants [131]

We have The floor in the tool room measures 13 feet 3 inches by 11 feet 5 inches.

Let us convert inches to feet since we want the area in square feet.

We know that 1 inch = 0.0833333 feet .

Therefore, we have

3 inches = 0.25 feet

5 inches = 0.42 feet

Thus, we have the below dimension in feet

Length = 13 feet 3 inches = 13+0.25 = 13.25 feet

Width = 11 feet 5 inches = 11+0.42 = 11.42 feet

Hence, area of the room is given by

$A= \text{Length} \times \text{width}
\\
A=13.25 \times 11.42\\
\\
A=151.3 \text{ square feet}\\
A\approx 151 \text{ square feet}\\$

a is the correct option.

7 0

3 years ago