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abruzzese [7]
3 years ago
8

What is 4/5 | 3 1/2 | and 3 1/8 as a fraction in feet

Mathematics
1 answer:
Orlov [11]3 years ago
5 0
A foot is broken up into twelve equal parts called inches. On a tape measure, each inch is divided into sixteenths. To add or subtract, arrange the feet over feet, inches over inches, and any fractions above another. When carrying inches remember there are 12 inches in a foot, and to bor- row a foot gives you 12 inches (not 10!). .. btw it's not the answer to your problem just help solve ..
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If f(x) = -x +6 and the domain of f is { 3, 7 , 11}, what is the range of f(x)?
Dennis_Churaev [7]

Answer:

The domain of a function f(x) is the set of all values for which the function is defined, and the range of the function is the set of all values that f takes. (In grammar school, you probably called the domain the replacement set and the range the solution set.

Step-by-step explanation:

hope it helps

8 0
3 years ago
Read 2 more answers
I need more help please
lesantik [10]

Answer:

3, 6, 7, 9

Step-by-step explanation:

1/3 = 0.33...

1/6 = 0.1666...

1/7 = 0.1428571428...

and 1/9 = 0.11...

7 0
3 years ago
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Show that √(1-cos A/1+cos A) =cosec A - cot A​
Gennadij [26K]

Hi there!

\sqrt{\frac{1-cosA}{1+cosA}} =

We can begin by multiplying by its conjugate:

\sqrt{\frac{1-cosA}{1+cosA}} * \sqrt{\frac{1+cosA}{1+cosA}}  = \\\\\sqrt{\frac{(1-cosA)(1 + cosA)}{(1+cosA)(1 + cosA)}} =

Simplify using the identity:

1 - cos^2A = sin^2A

\sqrt{\frac{(1-cos^2A)}{(1+cosA)^2}} =\\\\\sqrt{\frac{(sin^2A)}{(1+cosA)^2}} =

Take the square root of the expression:

{\frac{sinA}{1+cosA} =

Multiply again by the conjugate to get a SINGLE term in the denominator:

{\frac{sinA}{1+cosA} * {\frac{1-cosA}{1-cosA} =\\

Simplify:

{\frac{sinA(1-cosA)}{1-cos^2A} =

Use the above trig identity one more:

{\frac{sinA(1-cosA)}{sin^2A} =

Cancel out sinA:

{\frac{(1-cosA)}{sinA}  =

Split the fraction into two:

{\frac{1}{sinA}   - \frac{cosA}{sinA} =

Recall:

1/sinA = cscA\\\\cosA/sinA = cotA

Simplify:

\frac{1}{sinA} + \frac{cosA}{sinA} = \boxed{cscA - cotA}

5 0
2 years ago
What is the least common denominator of 8/9 + 4/7?
SVEN [57.7K]
Do you mean LCM (Least common multiple)
7 0
3 years ago
Read 2 more answers
((PLEASEEE HELPP MEE))
andrezito [222]

Answer:

D.

Step-by-step explanation:

In order to eliminate, the numbers must eliminate. If the second equation is multiplied by 3, then the 3 and the -3 can be eliminated. Since it is multiple choice, we can plug in x = 12 and y = 10 to see if they are correct. 12 + 30 = 42 and 24 - 10 = 14, so D is correct.

3 0
2 years ago
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