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VikaD [51]
3 years ago
14

Using the properties of equality, find the value of x in the equation below

Mathematics
1 answer:
Vesnalui [34]3 years ago
3 0

Answer:

2(2x+12)=13

2(2x+12)-(13)=0

4x+24-13=0

4x+11=0

4x=-11

x=-11/4

x=-2+3/4

Hope it helps and stay safe!

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Carl earned grades of 62 78 59 and 89 what is the mean of his grades
stira [4]

Answer:

72

Step-by-step explanation:

Let

Carl grades = x = 62, 78, 59, 89

Number of grades, N = 4

Mean of Carl's grade = sum of x / number of grades,N

= (62 + 78 + 59 + 89) / 4

= 288/4

= 72

Therefore, mean of Carl's grade = 72

5 0
3 years ago
True or false <br><br> (Picture provided)
aksik [14]
<h2>Answer:</h2><h3>False</h3><h2>Step-by-step explanation:</h2>

Let's find the inverse function of f(x)=(x-3)^3+4 to know whether this function has an inverse function f^{-1}(x)=-3+\sqrt[3]{x+4}. So let's apply this steps:

a) Use the Horizontal Line Test to decide whether f has an inverse function.

Given that f(x) is a cubic function there is no any horizontal line that intersects the graph of f at more than one point. Thus, the function is one-to-one and has an inverse function.

b) Replace f(x) by y in the equation for f(x).

y=(x-3)^3+4

c) Interchange the roles of x and y and solve for y

x=(y-3)^3+4 \\ \\ \therefore x-4=(y-3)^3 \\ \\ \therefore (y-3)^3=x-4 \\ \\ \therefore y-3=\sqrt[3]{x-4} \\ \\ \therefore y=\sqrt[3]{x-4}+3

d) Replace y by f^{-1}(x) in the new equation.

f^{-1}(x)=\sqrt[3]{x-4}+3

So this is in fact the inverse function and it isn't the same given function. Therefore, the statement is false

3 0
3 years ago
Read 2 more answers
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IrinaVladis [17]

Answer:

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Step-by-step explanation:

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Find the slope of the line that passes through (66, 77) and (-3, -10).
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M=y2-y1/x2-x1
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Hope this helps!
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How many small boxes will fit inside the large crate?? Plz explain
USPshnik [31]
Just multiple the three numbers then divide it by 6.5
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