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Gnoma [55]
3 years ago
7

Gloria talked on her cell phone for 320 minutes the first mouth , and 489 minutes the third mouth . Her payment package does not

allow her to pay per minute ; she can only buy packages . If she has to pay $ 25 for every 200 minutes , how much did she pay for the first 3 months ?
Mathematics
1 answer:
Sliva [168]3 years ago
7 0
Add up minutes

1stmonth+2ndmonth+3rdmonth=320+243+489=1052
how many 200's are there
6 of them (companies want money so they see, ok, you bought like 1 minute, we will charge you for the whole 200 minutes since you got in that zone)

6 times 25=150

cost is $150 (mom is not going to be happy, she spend like 3% of her waking hours takling on the phone)
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Which relation does not represent a function? A) a vertical line B) y = 5 9 x - 3 C) a horizontal line D) {(1, 7), (3,7), (5, 7)
Alisiya [41]

Answer:

A) a vertical line does not represent a function.

Step-by-step explanation:

For a relation to be a function for each value of x there must be only one value of y. In other words a function is one in which each value in the domain set corresponds to only one value in the range set.

Let us check for this condition in the give choices:

A) a vertical line

A vertical line is given as x=a which meas it is parallel to y-axis and has infinite number of y values for a single x value.

So, its Not a function

B) y=\frac{5}{9}x-3

For the given equation, on plugging in some x value will give a single y value.

So, its a Function

C) a horizontal line

A horizontal line is given as y=a which meas it is parallel to x-axis and has infinite number of x values giving a single y value.

So, its a Function

D) {(1, 7), (3,7), (5, 7), (7,7)}

For the given set for different x valuesthere is only one y value.

So, its a Function

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2 to the 8th power = 512
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On a coordinate plane, a line goes through points (negative 3, 0) and (0, 3).
Darina [25.2K]

Answer:

Slope-Intercept form: y=x+3

Step-by-step explanation:

The Slope-Intercept form is y=mx+b

You first have to find the slope. You can use the graph and count or you can use the table and use the slope formula m=\frac{y_2-y_1}{x_2-x_1}. You then have to find (b) which is the y-intercept. You can find this easily using the graph or the table.

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Problem 5.) Andre paid $13 for 3 books. Diego bought 12 books priced at the same rate. How much did Diego pay for the 12 books?
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Answer:

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Step-by-step explanation:

3 books → $13

1 book → $13/3

12 books → $13/3 x 12 = $52

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2 years ago
An engineer on the ground is looking at the top of a building. The angle of elevation to the top of a buliding. The angle of ele
Marysya12 [62]

\tan( \alpha )  \:  =  \:  \frac{h}{b}
\alpha  \:  =  \:  {22}^{0}
h \:  =  \: 450 \: ft
Therefore,
b \:  =  \: h \cot( \alpha )
b \:  =  \: 450  \: ft \:  \times  \:  \cot( {22}^{0} )
b = 450 ft × 2.47508685
b = 1,113.78908 ft
or,
b ≈ 1,114 ft.
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