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Finger [1]
2 years ago
13

A tabletop in the shape of a trapezoid has an area of 7,701 square centimeters. Its longer base measures 119 centimeters, and th

e shorter base is 85 centimeters. What is the height?
Second attempt, please just give me the answer :p
Mathematics
1 answer:
svet-max [94.6K]2 years ago
7 0

Answer:

75.5 cm

Step-by-step explanation:

S = (a+b)*h/2

h = 2 * S / (a+b) = 2 * 7701 / 204 = 75.5 cm

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4 0
2 years ago
1. What is (f⋅g)(x)?
nekit [7.7K]

Answer:

(f⋅g)(x)= x^7 + 9x^4 - 9x^3 -81

(f - g)(x) = x^3 - 6x^2 + 18x + 6x - 10

Step-by-step explanation:

For the first part of the question we have two functions

f(x) = x^4 -9

g(x) = x^3 + 9

If the expression refers to the multiplication of f and g, then:

(f⋅g)(x)= f (x)g(x)

So we multiply the function f(x) with the function g(x)

(f⋅g)(x)= (x^4 - 9)(x^3 + 9)

(f⋅g)(x)= x^7 + 9x^4 - 9x^3 -81

For the second part we have the functions:

f(x) = x^3 -2x^2 + 12x - 6\\\\g(x) = 4x^2 - 6x + 4

We wish to find (f - g) (x). We know that

(f - g)(x) = f(x) - g(x)\\\\(f - g)(x) = x^3 - 2x^2 + 12x - 6 - [4x^2 - 6x + 4]\\\\(f - g)(x) = x^3 - 2x^2 + 12x - 6 -4x^2 + 6x - 4

(f - g)(x) = x^3 - 6x^2 + 18x + 6x - 10

5 0
3 years ago
I dont get this at all
Anarel [89]

Answer: Not sure what you are asking; please edit your question so that I have the ability to assist you.

Step-by-step explanation: If the teacher did not  include much information, go ahead and email her and let her know. I am not sure what the work you are doing in class is but try to ask her if she could help and if you need anything else, let me know!

Stay safe. Stay warm.

<3

-Carrie

4 0
3 years ago
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