2 years ago

Which of the following sets of points is a direct variation?

Mathematics

1 answer:

GuDViN [60]2 years ago

7 0

The first one because I just didn’t at clases

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a pizza shop offers 30% off the price of a large pizza every Tuesday night. If the regular price is $25, what is the discounted

Elina [12.6K]

You need do like 25$--------100% of real price
x$---------70%

25x70=100x
1,750=100x
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2 years ago

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Sin x = - 1/2 where (-360 < x < 360)

dimulka [17.4K]

Answer:

-30, 210 and 330 degrees

Step-by-step explanation:

Given the expression Sin x = - 1/2

x = arcsin(-1/2)

x = -30 degrees

Since sin is negative in the third and fourth quadrant

x = 180 + 30

x = 210 degrees

In the fourth quadrant

x = 360 - 30

x = 330

Hence the value of x within the interval -360 < x < 360 are -30, 210 and 330 degrees

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2 years ago

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Rina8888 [55]

Answer:

B)113.04 cm^2

Step-by-step explanation:

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2 years ago

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Which of the following is closest to 1/2 + 1/3

andre [41]

Answer:

.83

Step-by-step explanation:

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3 years ago

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2.1.43 A particular hybrid car travels approximately 235 mi on 5 gal of gas. Find the amount of gas required for a 705-mi trip.

o-na [289]

Answer: 15 gallons of gas is required for a 705 miles trip.

Step-by-step explanation:

Since we have given that

Number of miles in a trip = 235 miles

Number of gallon of gas is needed = 5

We need to find the amount of gas required for 750 miles trip.

Since there is direct variation, as for increase in number of miles, amount of gas must be increased.

According to question, it becomes,

$\dfrac{235}{5}=\dfrac{705}x}\\\\47=\dfrac{705}{x}\\\\47x=705\\\\x=\dfrac{705}{47}\\\\x=15\ gallons$

Hence, 15 gallons of gas is required for a 705 miles trip.

7 0

3 years ago