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motikmotik
3 years ago
15

HELP PLEASE!

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

Answer: y= -7

Step-by-step explanation:

Zero slope are horizontal lines. Horizontal lines have the equation Y= a number. That number is the y value of the point.

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Alana and two of her friends evenly split the cost of a meal. They determine that each person owes $14.68. How much was the enti
balu736 [363]

Answer:

Step-by-step explanation:

Alana and 2 friends evenly split the meal. This means there are 3 people in total.

Since they said each person owes $14.68. To find the total you just multiply $14.68 by 3.

Total = $14.68 x 3 = $?

8 0
3 years ago
The radius of a circular clock is 10,5 inches. Which measurement is closest to the circumference of the clock in inches?
nikitadnepr [17]
The closest would be 66 inches
4 0
3 years ago
A large bottle of Sharkleberry Finn juice contains 600 milliliters of juice. A medium bottle contains 70% as much juice as the l
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7 0
3 years ago
A plane flying horizontally at an altitude of 2 mi and a speed of 540 mi/h passes directly over a radar station. Find the rate a
Rasek [7]

Answer:

The plane's distance from the radar station will increase about 8 miles per minute when it is 5 miles away from it.

Step-by-step explanation:

When the plane passes over the radar station, the current distance is the altitude h = 2. Then it moves b horizontally so that the distance to the station is 5. We can form a rectangle triangle using b, h and the hypotenuse 5. Therefore, b should satisfy

h²+b² = 5², since h = 2, h² = 4, as a result

b² = 25-4 = 21, thus

b = √21.

Since it moved √21 mi, then the time passed is √21/540 = 0.008466 hours, which is 0.51 minutes. Note that in 1 minute, the plane makes 540/60 = 9 miles.

The distance between the plane and the radar station after x minutes from the moment that the plane passes over it is given by the function

f(x) = \sqrt{((9x)^2 + 2^2)} = \sqrt{(81x^2+4)}

We have to compute the derivate of f in x = 0.51. The derivate of f is given by

f'(x) = \frac{162x}{2\sqrt{81x^2+4}}

also,

f'(0.51) = \frac{162*0.51}{2\sqrt{81*0.51^2+4}} = 8.2486

The plane's distance from the station will increase about 8 miles per minute.

4 0
3 years ago
Chas build a circular pattern for his dog The radius of the pen is 9 feet how much fencing did Chaz use for the pen
kicyunya [14]

Answer:

The fencing Chaz used for the pen is 56.67 feet

Step-by-step explanation:

Fencing interprets to circumference

If the radius of the pen is 9 ft

circumference = 2\pi r

= 2*(22/7)*9

= 396/7

= 56.67 ft

3 0
3 years ago
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