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andrezito [222]
3 years ago
9

Subtracting fractions Finding the value of each expression in lowest terms.7/4-8/5=

Mathematics
1 answer:
Gekata [30.6K]3 years ago
6 0
What you want to do is found a common denominator which is 20, so you would multiply 7/4 times 5 and 8/5 times 4. So it would be 35/20-32/20 and the answer is 3/20.
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SSSSS [86.1K]

Answer:

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→Argon gas

Which gas creates the shortest wavelength?

→ Fluorine gas

Explaination:

1.0×10^-6 > 1.0×10^-7 > 1.0×10^-10 (a^-n =1/a^n)

8 0
2 years ago
If f(x) = 4x + 8 and g(x) = (x+4,<br> what is (fºg)(12)?
svetlana [45]

Answer:

72

Step-by-step explanation:

f(x) = 4x+8\\g(x) = x + 4\\\\1. f(g(x)) = 4(x+4) + 8\\2. f(g(x)) = 4x + 16 + 8\\3. f(g(x))=4x + 24\\\\4. f(g(12)) = 4(12) + 24\\5. f(g(12)) = 48 + 24 = 72\\

To do these, you have to place the entire function inside the parent function's variables.

You are inputting the value of the function g(x) into f(x)

4 0
3 years ago
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anygoal [31]
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4 0
3 years ago
-2/5x+6=8 can you help me
ale4655 [162]
If you would like to solve the equation - 2/5 * x + 6 = 8, you can do this using the following steps:

- 2/5 * x + 6 = 8
- 2/5 * x = 8 - 6
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x = 2 * (- 5/2)
x = - 5

The correct result would be -5.
7 0
3 years ago
Read 2 more answers
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Nataliya [291]

Answer: 85.7

Step-by-step explanation:

3 0
3 years ago
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