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2 years ago

Square root of 55 to the nearest integer

Mathematics

2 answers:

MariettaO [177]2 years ago

5 0

The nearest integer is 7 because the nearest perfect square root is 49. Answer is 7-8

Mrac [35]2 years ago

5 0

7 good luck with your assignment

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Find the area I will mark as brainless thank u and rate 5 starts

Veronika [31]

Answer:

The area is 10

Step-by-step explanation:

The blue area can be divided into a square and a number of triangles, but it is just as easy to subtract the areas of the triangles around the outside:

The blue area is ...

16 -1 -1 -1 -2 -1 = 10 . . . . . . (CCW from upper left)

Also you can count the number of dots between each curve

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2 years ago

Prove algebraically that r = 10/2+2sinTheta is a parabola

Xelga [282]

Answer:

$y = - \frac{ 1 }{10} {x}^{2} + \frac{5}{2}$

Step-by-step explanation:

We want to prove algebraically that:

$r = \frac{10}{2 + 2 \sin \theta}$

is a parabola.

We use the relations

${r}^{2} = {x}^{2} + {y}^{2}$

and

$y = r \sin \theta$

Before we substitute, let us rewrite the equation to get:

$r(2 + 2 \sin \theta) = 10$

$r(1+ \sin \theta) = 5$

Expand :

$r+ r\sin \theta= 5$

We now substitute to get:

$\sqrt{ {x}^{2} + {y}^{2} } + y = 5$

This means that:

$\sqrt{ {x}^{2} + {y}^{2} }=5 - y$

Square:

${x}^{2} + {y}^{2} =(5 - y)^{2}$

Expand:

${x}^{2} + {y}^{2} =25 - 10y + {y}^{2}$

${x}^{2} =25 - 10y$

${x}^{2} - 25 = - 10y$

$y = - \frac{ {x}^{2} }{10} + \frac{5}{2}$

This is a parabola (0,2.5) and turns upside down.

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2 years ago

Please helppppp!!!!!!!

ale4655 [162]

Answer:

K 2

J 4

Step-by-step explanation:

Solved it as an equation 2 x+x=6

x= number of miles Katie drives

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2 years ago

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Vlad [161]

Answer:

Step-by-step explanation:

the decimal always goes between the numbers that arent 0s

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2 years ago

How many radians is 306°?

ryzh [129]

Answer:

5.34 radians

Step-by-step explanation:

multiply 306 by pi/180

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2 years ago

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