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Lesechka [4]
3 years ago
11

I need help with number 13, PLEASE. Extra points!

Mathematics
1 answer:
gladu [14]3 years ago
5 0

Answer:

90°, 270°

Step-by-step explanation:

2r sin(Ф/2) = c

2r sin (Ф/2) = √2r

divide both sides by 2r

sin (Ф/2) = √2r/2r

sin(Ф/2) = √2/2

From the unit circle sin is √2/2 at 45°, and 135°

so Ф/2 = 45

Ф=90°

and Ф/2 = 135

Ф= 270°

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Sydney took a taxi from her house to the airport. The taxi company charged a pick-up fee of $1.75 per mile. The total fare was $
Sati [7]

The equation is x = 20.85 / 1.75 where x is the number of miles and the number of miles is 11.91 miles.

Given,

Sydney took a taxi from her house to the airport.

The taxi company charged a pick-up fee of $1.75 per mile.

The total fare was $20.85, not including the tip.

We need to write and solve an equation that can be used to determine the number of miles in the taxi ride.

We have,

Taxi fare per mile = $1.75

Total fare = $20.85

Find the number of miles in a total fare of $20.85.

$1.75 = 1 mile

Multiplying by 20.85 on both sides.

20.85 x $1.75 = 20.85 x 1 mile

Dividing by 1.75 on both sides.

(20.85 x $1.75) / 1.75  = (20.85 x 1 mile) / 1.75

$20.85 = 11.91 mile

We see that  11.91 miles will cost $20.85.

Write an equation to show this situation.

x = 20.85 / 1.75

Where x is the number of miles.

we get,

x = 20.85 / 1.75 = 11.91

Thus the equation is x = 20.85 / 1.75 and the number of miles is 11.91 miles.

Learn more about solving an equation to find the number of miles with a rate given per mile here:

brainly.com/question/22582035

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4 0
2 years ago
How many solutions are there to the equation below?<br> 6x + 33 = 6(x+6)
Ainat [17]

▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪

Let's solve ~

  • 6x + 33 = 6(x + 6)

  • 6x + 33 = 6x + 36

Here, 6x is present on both the sides of equation so they cancel out ~ therefore there is no one solution satisfying the equation ~

3 0
3 years ago
Read 2 more answers
Y dont know the answer, can you please help me?
sukhopar [10]

Answer:

it is a

Step-by-step explanation:

3 0
3 years ago
What is the solution to the equation?
Zielflug [23.3K]

Answer:

Exact form - \frac{25}{2}

Decimal form - 12.5

Mixed number form - 12\frac{1}{2}

Have a nice day.

4 0
3 years ago
Margo wants to convince her father to change her curfew from 9 P.M. to 10 P.M. She gathers data on curfew times from a random sa
Irina-Kira [14]

Answer: No; Most students have a curfew of 9 pm or earlier

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4 years ago
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