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aleksklad [387]
3 years ago
10

You want to change your cell phone service. The new company charges $40 per

Mathematics
1 answer:
padilas [110]3 years ago
6 0

Answer:

y=40x+25

plz mark brainliest

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I report if you answer randomly. Don't steal my points, go steal someone elses.
Sav [38]

Answer:

D

Step-by-step explanation:

p +/- [z + sqrt(pq/n)]

0.65 + [1.645 × sqrt[0.65 × (1-0.65) ÷ 50]

0.65 +/- 0 1109613165

[0.5390386835 , 0.7609613165]

6 0
3 years ago
Solve the solution. How many solutions does it have? 4(2x-3)=2(4x-6)
sdas [7]

Answer:

No solutions

Step-by-step explanation:

4(2x-3)=2(4x-6)

4(2x-3)=2 \times 2(2x-3) \\  \\ 4(2x-3)=4(2x-3)

Same components are present on both sides of equal sign, therefore NO SOLUTIONS are possible.

7 0
3 years ago
What is the y-intercept:<br> 7x + y = 10
scoray [572]

Answer:

10

Step-by-step explanation:

7(0)+y=10

y=10

8 0
3 years ago
Read 2 more answers
A scientist is studying the population growth rates of two different species of rats in the same laboratory conditions. The popu
Korolek [52]

Since, population of species A is represented by : P=2^{x} +19

Let us find the population of species A, at the end of week 1:

i.e., x = 1

i.e., P(1)=2^{1} +19

i.e., P(1)=2 +19

i.e., P(1)=21


Also, since population of species B is represented by : P=3^{x} +18

Let us find the population of species B, at the end of week 1:

i.e., x = 1

i.e., P(1)=3^{1} +18

i.e., P(1)=3 +18

i.e., P(1)=21


Thus, at the end of 1 week, species A and species B will have the same population.

Hence, option D is correct.

4 0
3 years ago
Find an equation of the circle that has center (-1,2) and passes through (5,-4).
kherson [118]
General equation for a circle
(x - a)² + (y - b)² = r²
with (a,b) represents the center, (x,y) represents one of the points lie on the circle, and r represents the radius

Determine r² by substituting the points into the general equation
(x - a)² + (y - b)² = r²
(5 - (-1))² + (-4 - 2)² = r²
(5 + 1)² + (-6)² = r²
6² + 36 = r²
36 + 36 = r²
72 = r²

Determine the equation of the circle
(x - a)² + (y - b)² = r²
(x - (-1))² + (y - 2)² = 72
(x + 1)² + (y - 2)² = 72 (This is the equation of the circle)
8 0
3 years ago
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