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Savatey [412]
3 years ago
12

PLEASE HELP NEED STEP BY STEP EXPLAINATION!!!then ƒ(2) =

Mathematics
2 answers:
andrezito [222]3 years ago
7 0
Swap x and y, f^-1 is and solve for y to get f^-1 the inverse of f. f(f^-1)=f^-1(f)=x is the identity as a check
f(2)=3*2+1=7 (2,7)
f^-1(7)=2 (7,2)
Effectus [21]3 years ago
3 0
I found out that f(2)=3*2+1=7 (2,7)
f^-1(7)=2 (7,3)f


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Which of the following is a correct interpretation of the expression -4 - (-7)−4−(−7)minus, 4, minus, left parenthesis, minus, 7
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B

Step-by-step explanation:

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Given log5 3=0.6826 and log5 8=1.2920, evaluate the expressions<br><br> Please help!?
gulaghasi [49]

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b) log5 75/8 = log5 75 - log5 8 = log5 3×25 - log5 8=

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2 years ago
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aleksandr82 [10.1K]

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Tresset [83]

Answer:

A=189\ mm^2

Step-by-step explanation:

<u>Surface Areas </u>

Is the sum of all the lateral areas of a given solid. We need to compute the total surface area of the given prism. It has 5 sides, two of them are equal (top and bottom areas) and the rest are rectangles.

Computing the top and bottom areas. They form a right triangle whose legs are 4.5 mm and 6 mm. The area of both triangles is

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The front area is a rectangle of dimensions 7.7 mm and 9 mm, thus

A_f=b.h=(7.5)(9)=67.5 \ mm^2

The back left area is another rectangle of 4.5 mm by 9 mm

A_l=b.h=(4.5)(9)=40.5  \ mm^2

Finally, the back right area is a rectangle of 6 mm by 9 mm

A_r=b.h=(6)(9)=54 \ mm^2

Thus, the total surface area of the prism is

A=A_t+A_f+A_l+A_r=27+67.5+40.5+54=189\ mm^2

\boxed{A=189\ mm^2}

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