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Rom4ik [11]
3 years ago
13

A farmer hears a weather report saying that temperatures will be decreasing approximately 5 ∘ 5∘ every hour for the next 3 hours

. What signed number represents the total change in temperature expected over the next 3 hours?
Mathematics
1 answer:
timama [110]3 years ago
4 0
The total change in temperature expected over the next 3 hours is 3 x 5° = 15°
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A farmer plans to build the small silo shown to store chicken feed. What is the circumference of the base of the silo if it can
mars1129 [50]
Work seriously and you will be eable to answer
5 0
2 years ago
An exponential function f(x) = ab^xpasses through the points (0, 2) and (3, 54). What are the values of a and
Vsevolod [243]

Answers:

a = 2

b = 3

=======================================================

Explanation:

Plug in x = 0 and y = 2 to find that

y = a*b^x

2 = a*b^0

2 = a*1

2 = a

a = 2

Then plug in x = 3 and y = 54 to determine the value of b

y = a*b^x

y = 2*b^x

54 = 2*b^3

2b^3 = 54

b^3 = 54/2

b^3 = 27

b = (27)^(1/3)

b = 3

So we have y = a*b^x update to y = 2*3^x

7 0
2 years ago
If f(x) = 4x - 3 and g(x) = x + 4, find (f - g)(x).
aleksandrvk [35]

Answer:

(f - g)(x) = 3x - 7

Step-by-step explanation:

(f - g)(x) = f(x) - g(x)

             = 4x - 3 - ( x + 4 )

             = 4x - 3 - x - 4

             = 3x -7

8 0
3 years ago
Solve for x: |2x + 12| = 18
julsineya [31]
It can be x = 3 and x = -15
8 0
3 years ago
A taxi fare has a fixed charge of $1.75 and an additional charge $0.45 per mile. A fare for m miles is $13.90. Which equation co
Anestetic [448]

Answer:

B) 1.75 + 0.45m = 13.90

Step-by-step explanation:

To calculate the Taxi fare, we need to sum the fixed charge and the additional charge. Fixed charge ever is $1.75. The additional charge changes with the miles traveled (one mile costs $0.45, two miles $0.90, and so on), so we need multiply the charge ($0.45) by the miles m traveled.  

1.75 + 0.45 m

The problem says that the fare was equals to $13.90 so the final equation is

1.75 + 0.45m = 13.90

6 0
3 years ago
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