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kogti [31]
3 years ago
12

If a = 0.6(the 6 repeating) and b= 0.75, then a·b= (blank) and a/b=(blank)

Mathematics
1 answer:
Phoenix [80]3 years ago
5 0
0.6666 (repeating) x 0.75 = 0.5

0.6666 (repeating) / 0.75 = 0.8888888 (repeating)
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For the funtion f(x)= (x+7)^5, Find f^-1 (x)
quester [9]

Answer:

The inverse of function f(x)= (x+7)^5 is \mathbf{f^{-1} (x)=\sqrt[5]{x}+7}

Option A is correct option.

Step-by-step explanation:

For the function f(x)= (x+7)^5, Find f^{-1} (x)

For finding inverse of x,

First let:

y=(x+7)^5

Now replace x with y and y with x

x=(y+7)^5

Now, solve for y

Taking 5th square root on both sides

\sqrt[5]{x}=\sqrt[5]{(y+7)^5}\\\sqrt[5]{x}=y+7\\=> y+7=\sqrt[5]{x}\\y=\sqrt[5]{x}-7

Now, replace y with f^{-1} (x)

f^{-1} (x)=\sqrt[5]{x}+7

So, the inverse of function f(x)= (x+7)^5 is \mathbf{f^{-1} (x)=\sqrt[5]{x}+7}

Option A is correct option.

6 0
3 years ago
A CD makes 58 1/2 revolutions in 3/4 minutes what's the unit rate?
Elza [17]
The asnwer is 32 :) hope it helps
4 0
3 years ago
What can you say about the y-values of the two functions f(x)=-5^x +2 and g(x)=-5x^2+2?
Kryger [21]

Answer:

B) The maximum y-value of f(x) approaches 2

C) g(x) has the largest possible y-value

Step-by-step explanation:

f(x)=-5^x+2

f(x) is an exponential function.

Lim x→∞ f(x) = Lim x→∞ (-5^x+2) = -5^(∞)+2 = -∞+2→ Lim x→∞ f(x) = -∞

Lim x→ -∞ f(x) = Lim x→ -∞ (-5^x+2) = -5^(-∞)+2 = -1/5^∞+2 = -1/∞+2 = 0+2→

Lim x→ -∞ f(x) = 2

Then the maximun y-value of f(x) approaches 2


g(x)=-5x^2+2

g(x) is a quadratic function. The graph is a parabola

g(x)=ax^2+bx+c

a=-5<0, the parabola opens downward and has a maximum value at

x=-b/(2a)

b=0

c=2

x=-0/2(-5)

x=0/10

x=0

The maximum value is at x=0:

g(0)=-5(0)^2+2=-5(0)+2=0+2→g(0)=2

The maximum value of g(x) is 2

7 0
3 years ago
Write a word problem that would require you to 5621 divided by 23
Aliun [14]
<span>Joseph bought 23 laptop computers for school at a discount for $5,621. How much did he pay for each computer?</span>
7 0
3 years ago
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If triangle ABC defined by the coordinates A(1, 1), B(9, 1), C(1, 9) is dilated by a scale factor of 1 2 , with resulting vertex
AfilCa [17]

Answer: the answer is b (1, 1)

In this case, the center of dilation is a vertex of the original figure.  

The center of dilation is a fixed point in the plane about which all points are expanded or contracted.

Step-by-step explanation:

3 0
3 years ago
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