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gizmo_the_mogwai [7]
3 years ago
10

A cell phone plan charges $15 per month for 300 text messages. The plan charges eight cents for each additional text message. Yo

u use 60 additional text this month. What is your bill for the month
Mathematics
1 answer:
leva [86]3 years ago
8 0
$19.80 hope this helps!
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bezimeni [28]
The answer is 1:3 because 1/4 has nuts and 3/4 don’t
5 0
3 years ago
How do i check an equation for extraneous solutions?
Marina86 [1]
Example:

\sqrt x(x+1)=0

This suggests two solutions, x=0 and x=-1.

However, upon plugging these solutions back into the equation, you get

\sqrt0(0+1)=0(1)=0

which checks out, but

\sqrt{-1}(1-1)=0

does not because \sqrt x is defined only for x\ge0 (assuming you're looking for real solutions only). So, we call x=-1 an extraneous solution, and the complete solution set (over the real numbers) is x=0.
7 0
3 years ago
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Does anybody know how to solve this please with work along with each one? Thank you
Allushta [10]
What grade are u in.
5 0
3 years ago
the point (4,0) lies on a circle with the center at the orgin. what is the area of the circle to the nearsest hundreth?
kvasek [131]

Answer:

50.27 units²

Step-by-step explanation:²

The standard equation of a circle with center at the origin is x² + y² = r², where r is the radius.  Substituting 4 for x and 0 for y yields 4² + 0² = r², so we see immediately that r = 4 units.

The formula for the area of a circle is A = πr².

Here, with r = 4, the area is A = π(4 units)² = 16π units², or

50.27 units² to the nearest hundredth.

3 0
3 years ago
Subtract (2x3 + 9x − 8) − (4x2 − 15x + 7).
STatiana [176]
2x^3 + 9x - 8 - (4x^2 - 15x + 7)....distribute thru the parenthesis
2x^3 + 9x - 8 - 4x^2 + 15x - 7....combine like terms
2x^3 - 4x^2 + 24x - 15 <==
7 0
3 years ago
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