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3 years ago

In a word problem, what does "is" represent? in math

Mathematics

2 answers:

notka56 [123]3 years ago

6 0

It could mean a ratio of a number. for example, i could say 30 percent of bag or marbles IS red.

maksim [4K]3 years ago

4 0

Answer:

is means equals in math terms

Step-by-step explanation:

example is 10 times 10 is 100

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Tommy and Arnold are playing with water balloons. Arnold is standing by a bush that is 20 feet from where Tommy is standing. Tom

erik [133]

Answer:

The equation that describes the path of the water balloon is:

$y =-\frac{1}{10}\cdot (x-10)^{2}+15$

Step-by-step explanation:

The motion of the water balloon is represented by quadratic functions. Tommy launches a water balloon from $A(x,y) = (0\,ft, 5\,ft)$ and hits Arnold at $B(x,y) = (20\,ft, 5\,ft)$ . Given the property of symmetry of quadratic function, water ballon reaches its maximum at $C(x,y) = (10\,ft,15\,ft)$ , which corresponds to the vertex of the standard equation of the parabola, whose form is:

$y = a\cdot (x-h)^{2}+k$ (Eq. 1)

Where:

$a$ - Vertex parameter, measured in $\frac{1}{ft}$ .

$h$ , $k$ - Horizontal and vertical components of the vertex, measured in feet.

$x$ , $y$ - Horizontal and vertical location of the ball, measured in feet.

If we know that $x = 0\,ft$ , $y = 5\,ft$ , $h = 10\,ft$ and $k = 15\,ft$ , the vertex parameter is:

$5\,ft = a\cdot (0\,ft-10\,ft)^{2}+15\,ft$

$a = \frac{5\,ft-15\,ft}{(0\,ft-10\,ft)^{2}}$

$a = - \frac{1}{10}\,\frac{1}{ft}$

The equation that describes the path of the water balloon is:

$y =-\frac{1}{10}\cdot (x-10)^{2}+15$

6 0

4 years ago

If you want to earn 15% annual simple interest on an investment, how much should you pay for a note that will be worth $27,000 i

photoshop1234 [79]

For some payment P, you want
27000 = P + I
27000 = P + Prt . . . . substituting the formula for I
27000 = P(1 + .15·10/12) = 1.125
Then
27000/1.125 = P = 24000

You should pay $24,000 for the note.

3 0

3 years ago

A certain human red blood cell has a diameter of 0.000007 meters. Which expression represents this diameter, in meters, in scien

vazorg [7]

Answer:

Step-by-step explanation:

3 0

4 years ago

2n + 3 = -3.2 what is the answer to n

Vlad1618 [11]

Answer:n=-3.1

Step-by-step explanation:

2n + 3 = -3.2

Subtract 3 on both sides

2n+3-3=-3.2-3

2n=-6.2

Divide 2 on both sides

2n/2=-6.2/2

n=-3.1

6 0

3 years ago

Read 2 more answers

At a sale this week, a sofa is being sold for $584 . this is a 27% discount from the original price. what is the original price?

Effectus [21]

The original price should be 800$. Tell me if you need the calculations

3 0

4 years ago