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s2008m [1.1K]
2 years ago
13

For his phone service, Bob pays a monthly fee of $30, and he pays an additional $0.05 per minute of use. The least he has been c

harged in a month is $91.45.
What are the possible numbers of minutes he has used his phone in a month?
Usem for the number of minutes, and solve your inequality for m.

Mathematics
1 answer:
Vesnalui [34]2 years ago
5 0

Answer:

m ≥ 1229

Step-by-step explanation:

Use m for the number of minutes

30 + 0.05×m ≥ 91.45

0.05*m ≥ 91.45-30

0.05*m ≥ 61.45

m ≥ 1229

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Joseph write the number pattern below 100; 101, 96; 97; 92; 93, 88; 89; what is the next pattern?
sergij07 [2.7K]

Answer:

multiples of 8

Step-by-step explanation:

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3 years ago
Solve the derivative of f(x)= x^4e^tanx
bulgar [2K]

Answer:

Step-by-step explanation:

5 0
3 years ago
Which equation represents the line that passes through the point (4, -5) and is perpendicular to the line x + 2y = 5?
Lerok [7]

Answer:

y = 2x - 13

Step-by-step explanation:

Equation of a line is y = mx + c, m is the gradient and c is the intercept

The line passes through points 4 and -5, x is 4 and y is -5

-5 = 4m + c

When two lines are perpendicular, the products of their gradients are equal to -1, m1 * m2 = -1

x + 2y = 5

2y = -x + 5

y = (-1/2 * x) + 5

therefore m = -1/2

m1 * m2 = -1

m * -1/2 = -1

-m = -2 , therefore m = 2

-5 = 4 * 2 + c

c = -5 - 8, which is -13

Therefore the equation for the line is

y = 2x - 13

7 0
3 years ago
What is (-14-x) squared in polynomial form?
Masteriza [31]
(-x-14)^2 = x^2 +14x+14x+196
which turns into x^2+28x+196.
hope this helps 
and give thanks 
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3 years ago
Parallelly lines/angle problem
rodikova [14]

Answer:

142 degrees

Step-by-step explanation:

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