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yulyashka [42]
3 years ago
14

1. Classify each statement as true or false for all real numbers a, b, and c.

Mathematics
1 answer:
12345 [234]3 years ago
6 0

naw

g4jtnbjtrnjbnrtibnrijnbngtrjnb jtkgnbrbgbn

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The graph shows the cost of buying beets at a farm stand.. (question continued on image)​
Vinvika [58]

Answer/Step-by-step explanation:

Part A:

The slope of the line showing proportional relationship can be found using any one point, (2, 5), on the line.

Slope = y/x = ⁵/2

Part B:

Abby is wrong. From the graph, we see that the unit rate = 5/2 = 2.5. This implies that beets cost $2.5 per pound.

4 0
3 years ago
Which function is a shrink of the exponential growth function shown on the graph?
MA_775_DIABLO [31]
For exponential functions 
y=ab^x,
where
a is the scale vertical stretch factor,
b is the base, and 
x the exponent (also independent variable)

It is a know fact that if the scale factor (1/2 or 2 in the answer choices) is positive, the graph is increasing if the base (3 or 1/3) is greater than 1.
This means that the base cannot be equal to 1/3.  This eliminates choices 3 and 4.

Next, for a base greater than 1 (3>1), and the scale factor positive, it is a dilation (image gets bigger) if the scale factor is greater than 1.  This eliminates the first choice where a=2.

 This leaves us with the second choice where a=1/2, b=3, which is a shrink of the given exponential base function.

4 0
3 years ago
Read 2 more answers
A line of best fit predicts that when x equals 28, y will equal 27.255, but y actually equals 26. What is the residual in this c
zlopas [31]

Answer:

C) -1.255

Step-by-step explanation:

We are tasked to solve for the residual value given that when x equals 29, y will be equals to 27.255. But, when it is tested, y actual value is 26. The formula in solving residual is shown below:

Residual value = Observed value - predicted value

Residual value =  26 - 27.255

Residual values = -1.255

The answer is -1.255 for residual value.

5 0
3 years ago
Helppppp, how do I do this??
Semenov [28]

Answer:

D. 0.71 miles

Step-by-step explanation:

1250 ÷ 1760 = 0.71

8 0
3 years ago
Find the area of the circle to the nearest hundredth with r=4cm. d=18in.<br>​
Annette [7]

Answer:

  • 1.

r = 4 cm

A(circle) = π·r²

= π·(4cm)²

= 3.14·16cm²

= 50.24 cm²

  • 2.

d = 18 in

d = 2r => r = d/2 = 18in/2 = 9 in

A(circle) = π·r²

= 3.14·(9in)²

= 3.14·81in²

= 254.34 in²

5 0
4 years ago
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