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3 years ago

7

A cell phone company charges $55 per month for unlimited minutes plus $0.25 per text sent. If the charges to Dayne's cell phone

for the last month came to $100, how many texts did Aly sent?

2 answers:

NikAS [45]3 years ago

8 0

400 because 100/0.25 = 400

Svetach [21]3 years ago

7 0

A: 180
Subtract 100 - 55 which gets you 45 then divide that with .25 = 180

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From the definition of absolute value, 3|x| = when x≥0 and 3|x| = when x<0.

lara31 [8.8K]

Answer:

1) 3|x|=[0; infinity). there is no infinity sign lol

2) 3|x|= (0; infinity)

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3 years ago

Solve each inequality. Then compare the solutions.<br><br> 3x +4> 16<br> - 2x + 19< 11

Makovka662 [10]

Answer:

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3 years ago

Carbon-14 has a half-life of 5,730 years. If a sample contained 70 mg originally, how much is left after 17,190 years?

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17,190 / 5,730 = 3. This means we must divide 70mg in half 3 times

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3 years ago

0.06(35+25h) where h is the number of hours

KATRIN_1 [288]

Answer:

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Step-by-step explanation:

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3 years ago

Read 2 more answers

What is the equation of this circle in standard form?

creativ13 [48]

Answer:

Option C.

Step-by-step explanation:

Note : In the given points one point is (8,-2) instead of (-6,-2).

The standard form of a circle is

$(x-h)^2+(y-k)^2=r^2$

where, (h,k) is center of circle and r is radius.

It is given that center of the circle is (-1,-2). So,

$h=-1,k=-2$

$(x-(-1))^2+(y-(-2))^2=r^2$

$(x+1)^2+(y+2)^2=r^2$ ...(1)

It is given that the circle passing through the point (8,-2),(-1,5),(6,-2),(-1,-9).

Substitute x=6 and y=-2 in equation (1).

$(6+1)^2+(-2+2)^2=r^2$

$(7)^2+(0)^2=r^2$

$49=r^2$

Substitute $r^2=49$ in equation (1).

$(x+1)^2+(y+2)^2=49$

Therefore, the correct option is C.

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3 years ago