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Tasya [4]
3 years ago
10

What is another number of pennies and total mass of pennies in grams if my number of pennies is 10 and the mass in grams is 25

Mathematics
1 answer:
Angelina_Jolie [31]3 years ago
7 0

Answer:

1 penny is equal to 2.5 grams

Step-by-step explanation:

1 penny = 2.5 grams

2 pennies = 5.0 grams

3 pennies = 7.5 grams

Just add 2.5 grams every penny.

Pick any number of pennies and multiply it by 2.5 (Don't forget to add grams ( g ) at the end.

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What is the range of the following function:<br> y = 2(5^x) - 1
Orlov [11]
<h2>Hello!</h2>

The answer is:

The range of the function is:

Range: y>2

or

Range: (2,∞+)

<h2>Why?</h2>

To calculate the range of the following function (exponential function) we need to perform the following steps:

First: Find the value of "x"

So, finding "x" we have:

y=2(5^{x}-1)\\\frac{y}{2}=5^{x}-1\\\\\frac{y}{2}-1=5^{x}\\\\Log_{5}(\frac{y}{2}-1)=Log_5(5^{x})\\\\x=Log_{5}(\frac{y}{2}-1)

Second: Interpret the restriction of the function:

Since we are working with logarithms, we know that the only restriction that we found is that the logarithmic functions exist only from 0 to the possitive infinite without considering the number 1.

So, we can see that if the variable "x" is a real number, "y" must be greater than 2 because if it's equal to 2 the expression inside the logarithm will tend to 0, and since the logarithm of 0 does not exist in the real numbers, the variable "x" would not be equal to a real number.

Hence, the range of the function is:

Range: y>2

or

Range: (2,∞+)

Note: I have attached a picture (the graph of the function) for better understanding.

Have a nice day!

5 0
3 years ago
a store buys CDs with $1 for each and sells them for 1.5 each how many CDs should they sell to earn $100
abruzzese [7]
67 CDS

100/1.5=^
Hope this helps!
6 0
3 years ago
Read 2 more answers
Multiply. Simplify your answer and write it as a proper fraction or as a whole or mixed number.
faust18 [17]
If you multiply 1/3 x 9 = 3
8 0
3 years ago
Read 2 more answers
Can someone help me pleaseeeeeeeee.
Leya [2.2K]

Answer:

B) 2.25

Step-by-step explanation:

Given:

x = -2

y = 4

z = -5

Work:

\frac{x^2-z}{y} \\\\\frac{(-2)^2-(-5)}{4}\\\\\frac{4+5}{4} \\\\\frac{9}{4} \\\\2.25

7 0
2 years ago
Evan is making a table that will be created in the shape of the figure below. The table top is a triangle attached to a rectangl
Yakvenalex [24]
Given:
Triangle:
height = 6ft
base = 4ft

Rectangle:
length = x
Width = 6 ft

Surface Area = 150ft²

Area of a Triangle = h*b / 2 = (6ft * 4ft) / 2 = 12ft²

Area of a rectangle = Surface Area - Area of a Triangle
A = 150 ft² - 12 ft² = 138 ft²

138 ft² = x * 6ft
138 ft² / 6 ft = x
23 ft = x.
6 0
2 years ago
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