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jarptica [38.1K]
2 years ago
8

Joyce is comparing two different internet providers to see which is a better deal. The cost of service from Provider S can be re

presented by the equation y=35x+45, where x is the number of months of service and y is the total cost. The cost of service from Provider T is represented by the following table.
Mathematics
1 answer:
maxonik [38]2 years ago
5 0

This means an initial fee of $45 have to be paid to the provider and a charge of $35 per month.

<h3>Linear equation</h3>

A linear equation is in the form:

y = mx + b

Where y, x are variables, m is the rate of change and b is the initial value of y.

Let S represent the total cost of service for x months. Given:

y = 35x + 45

This means an initial fee of $45 have to be paid to the provider and a charge of $35 per month.

Find out more on Linear equation at: brainly.com/question/13763238

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If f(x)=square root of 1/2x -10+3 which inequality can be used to find the domain of f(x)?
zlopas [31]
Hello :
f(x) = <span>√(0.5x-10) +3

</span>inequality can be used to find the domain of f(x) is :  0.5x-10 <span>≥ 0  
</span>0.5x ≥10
x ≥10/0.5
x ≥ 20

the domain of f(x) is :  D = <span>[</span><span>20 ; + ∞[ </span>
7 0
3 years ago
Read 2 more answers
What is the vertex of the parabola given by the equation y x^2+ 4?
max2010maxim [7]

Format of Quadratic Equation:  y = ax2 + bx + c

Given Quadratic Equation:  y = 2x2 - 3x + 3

Coefficient Variable Values:  a = 2 and b = -3 and c = 3

Axis of Symmetry:  x = -b/2a = -(-3)/2(2) so answer is x = 3/4

Vertex:  x value is axis of symmetry (3/4) and y value is calculated substituting 3/4 for x in original equation:  y = 2(3/4)2 - 3(3/4) + 3 = 2(9/16) - 9/4 + 3 = 9/8 - 9/4 + 3 = 9/8 - 18/8 + 24/8 = 15/8,
so answer is (3/4,15/8)

x intercepts (solve using quadratic formula):  x = (-b plus or minus sqrt(b2 - 4ac)/2a, so plugging in coefficient values for a and b and c, we get x = [-(-3) plus or minus sqrt((-3)2 - 4(2)(-3)]/2(2), which results in x = (3 + sqrt(33))/4 or (3 - sqrt(33))/4 and answers to nearest tenth are x = (3 + 5.7) / 4 = 2.2
or x = (3 - 5.7) / 4 = -0.7

y intercept is calculated by substituting zero for x into original equation:  y = 2x2 - 3x + 3, so y-intercept is 3.

Domain is range is from calculated negative x intercept (-0.7) to calculated positive x intercept (2.2) and is written as (-0.7,2.2)

Range is from calculated y-intercept to positive infinity, since parabola opens up due to positive x2 coefficient value, so range is written as (3,positive infinity).  Note:  infinity symbol is sideways 8.         

4 0
3 years ago
Read 2 more answers
Please help I only need help with 16, 15, and 13. Thank you. (Number 14 is optional if you'd like to help me with that to)​
telo118 [61]

Answer:

14 is 24

13 is 1.4

Step-by-step explanation:

answer 14:

First you need to add 10.1 and 1.9.

Second you need to multiply the answer you got by 4.

Last you need to divide the answer you got from the first two steps by 2.

Answer 13:

First you need to add 0.6 plus 7.4 and then multiply it by 2 because it is squared by 2.

Next you minus 14 from the answer you got from the first steps.

6 0
3 years ago
How many hours will it take a culture of bacteria to increase from 20 to 2000 if the growth rate per hour is 85%
galben [10]

Answer:

Approximately

7.5

hours

Step-by-step explanation:

Explanation:

We are trying to determine the value of

h

in the compound growth formula

XXX

20

×

(

1

+

0.85

)

h

=

2000

or, simplified:

XXX

1.85

h

=

100

Taking the

log

1.85

of both sides:

XXX

log

1.85

100

With the aid of my trusty spreadsheet:

XXX

h

≈

7.48582192

3 0
3 years ago
3. Scout is conducting a research project on traffic patterns
ddd [48]

Answer:

7:45

Step-by-step explanation:

Since they both turn red at differnt times, you have to find a multiple to find the time they will be both on

Main St: 7, 14, 21, 28, 35, 42, 49, 56, 63, 70, 77, 84, 91, 98, 105

Elm St. 15, 30, 45, 60, 75, 90, 105

They will both turn on 105 minutes or 1 hour and 45 minutes from 6

6 + 1 hr 45 min = 7:45

8 0
3 years ago
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