3 years ago

Selena is flying her kite. How long is the kite string?

Mathematics

1 answer:

OleMash [197]3 years ago

4 0

Answer:

Step-by-step explanation:

a^2 + b^2 = c^2

16^2 + 12^2 = c^2

256 + 144 = 400

sqrt400 = 20

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Substitution for -3x+y=-9

shtirl [24]

Answer:

y=3x-9

Step-by-step explanation:

4 0

3 years ago

How many ways can a group of three boys and three girls be seated in a row of six seats if boys and girls must alternate in the

IgorC [24]

Answer:

Step-by-step explanation:

there are 6 seats and 3 boys, 3 girls.

First seat can be given to either boy or a girl.

So there are two ways.

If a boy is selected say, then he has to occupy 3rd and 5th only.

There are 2 ways

Now available positions are 2nd, 4th and 6th, in this girls can be arranged in 3! ways = 6

So total number of ways =

$2x2x6 = 24$

8 0

3 years ago

Whats the Axis of Symmetry? willing to give 15 points !!

nydimaria [60]

The axis of symmetry of a parabola in the form

$y=ax^2+bx+c$

is a vertical line

$x=k$

where k is the x coordinate of the vertex of the parabola.

The x coordinate of the vertex of the parabola is given by

$-\dfrac{b}{2a}$

which in your case is

$-\dfrac{-6}{2\cdot \frac{1}{4}}=\dfrac{6}{\frac{1}{2}}=6\cdot 2=12$

So, the axis of symmetry is the line x=12.

4 0

3 years ago

using the midpoint formula, solve for the midpoint of the segment with these pairs of endpoints (-8,21) and (32,-2)

dusya [7]

Answer

(24,9.5) using the midpoint formula

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3 years ago

Read 2 more answers

Is a rise of -7 the same as a fall of 7

iVinArrow [24]

The rise of -7 means that there is 7 less. The fall of 7 would mean that it is also 7 less. So, yes. They are both the same thing.

7 0

3 years ago