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mixas84 [53]
3 years ago
5

The graph shows the cost of Hannah's piano

Mathematics
2 answers:
Jet001 [13]3 years ago
6 0

Answer:

hJ^e$nabzdBHrna

Step-by-step explanation:

Vsevolod [243]3 years ago
4 0

Answer:

The slope represents here the increase of hours and cost of Hannah's piano lessons over time.

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Of the 114.2 million Americans who owned a TV, 94.2 million also owned a DVD player. What percent of those who owned a TV also o
Luda [366]

Answer:

82.5% Americans owned a TV also owned a DVD player .

Step-by-step explanation:

Formula

Percentage = \frac{Part\ value\times 100}{Total\ value}

As given

Of the 114.2 million Americans who owned a TV, 94.2 million also owned a DVD player.

Here

Part value = 94.2 million

Total value = 114.2 million

Putting all the values in the formula

Percentage = \frac{94.2\times 100}{114.2}

Percentage = \frac{94200\times 10}{1142\times 10}

Percentage = \frac{942000}{11420}

Percentage = 82.5 %

Therefore 82.5% Americans owned a TV also owned a DVD player .

3 0
3 years ago
A mapping statement is a way of describing a _____ of a figure
mash [69]
The answer is D transformation. 
7 0
3 years ago
Write an equation of the perpendicular bisector of the line segment whose endpoints are (−1,1) and (7,−5)
icang [17]

The equation is y = \frac{3}{2} x - \frac{11}{2}

<u>Explanation:</u>

We have to first find the mid-point of the segment, the formula for which is

(\frac{x_1+x_2}{2} , \frac{y_1+y_2}{2} )

So, the midpoint will be (\frac{-1+7}{2} , \frac{1-5}{2} )\\\\

                                  = (3,-2)

It is the point at which the segment will be bisected.

Since we are finding a perpendicular bisector, we must determine what slope is perpendicular to that of the existing segment. To determine the segment's slope, we use the slope formula \frac{y_2-y_1}{x_2-x_1}

The slope is \frac{-5-1}{7+1} = -\frac{2}{3}

Perpendicular lines have opposite and reciprocal slopes. The opposite reciprocal of  -\frac{2}{3} is \frac{3}{2}

To write an equation, substitute the values in y = mx + c

WHere,

y = -1

x = 3

m = 3/2

Solving for c:

-1 = \frac{3}{2} X 3 + c\\\\-1 = \frac{9}{2}+c\\ \\c = \frac{-2-9}{2} \\\\c = \frac{-11}{2}

Thus, the equation becomes:

y = \frac{3}{2} x - \frac{11}{2}

7 0
3 years ago
Use substraction to find the length of segments wx and xy
Maurinko [17]

Answer:

What segments are we SUBTRACTING from ??

6 0
3 years ago
What is the value of the function when x = 3?
ivolga24 [154]
It tells you.

(-2, 4)
(-1, 3)
(1, 6)
(3, 5)
(4, 8)

When x is 3, y is 5. The point (3, 5) tells us that.
3 0
2 years ago
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