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katrin [286]
3 years ago
13

Which must be true?​

Mathematics
1 answer:
Eva8 [605]3 years ago
5 0

Answer:

PSC=PTC

They are the same angle

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Select the correct answer. What is true of the function as the x values increase?
Alinara [238K]

Answer:

B

Step-by-step explanation:

5 0
2 years ago
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Kendal bought x boxes of cookies to bring to a party. Each box contains 12 cookies. She decides to keep two boxes for herself. S
Georgia [21]

Answer:

Step-by-step explanation:

Total number of boxes of cookies that Kendal bought to bring to the party is x.

Each box contains 12 cookies. This means that total number of cookies in x boxes would be

12 × x = 12x

She decides to keep two boxes for herself. This means that the total number of cookies that she kept for herself would be

12 × 2 = 24 cookies

She brings 60 cookies to the party.

The equation that can be used to find the number of boxes, x, Kendal bought would be

12x = 24 + 60

12x = 84

x = 84/12 = 7 boxes

6 0
2 years ago
Can somebody please answers this thank you , just a, b, and c .
Shkiper50 [21]

Answer:

A) - 8 - 13 +4

B)+4 +7 - 2

C)-7 +3 - 20

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2 years ago
Which of the following equations belongs to an ellipse with vertical orientation?
Mekhanik [1.2K]

Answer:

d. 16x² + y² = 16

Step-by-step explanation:

Standard form of an ellipse is:

x² / a² + y² / b² = 1

If b > a, the ellipse has a vertical orientation.

We can ignore options b and c, since they have minus signs in them.

Convert the other options to standard form:

a. x² / (1/16) + y² / (1/25) = 1

x² / (1/4)² + y² / (1/5)² = 1

1/4 > 1/5

d. x² + y² / 16 = 1

x² / 1² + y² / 4² = 1

1 < 4

e. x² / 16 + y² = 1

x² / 4² + y² / 1² = 1

4 > 1

Of these three options, only d is a vertical ellipse.

6 0
3 years ago
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A rock is thrown into a still pond. The circular ripple move outward from the point of impact of the rock so that the area of th
4vir4ik [10]

Answer:

\approx 31.42 \text{   Square feet per minute}

Step-by-step explanation:

Area of the Pond A= \pi r^2

The increase in the area of the pond as it moves outward is: \frac{dA}{dt}

\frac{dA}{dt}=\frac{d}{dt}\pi r^2\\\frac{dA}{dt}= 2\pi r \frac{dr}{dt}

Since the area of the circle formed increases at the rate of 100 square feet per minute.

\frac{dA}{dt} = 100 Square feet per minute

When the radius, r = 5 feet, we want to determine the rate at which the radius is changing, \frac{dr}{dt}.

\frac{dA}{dt}= 2\pi r \frac{dr}{dt}\\100=2*5*\pi \frac{dr}{dt}\\\frac{dr}{dt} =\frac{100}{10 \pi} =10 \pi \approx 31.42 \text{  Square feet per minute}

5 0
3 years ago
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