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Vladimir [108]
3 years ago
15

What is 3 1/2 - 2 5/7 and show the work

Mathematics
1 answer:
Hunter-Best [27]3 years ago
6 0
3 \frac{1}{2}  -2 \frac{5}{7} = \frac{(3\cdot2)+1}{2} -  \frac{(2\cdot7)+5}{7} =  \frac{7}{2} -  \frac{19}{7} \\\\= \frac{7\times 7}{2\times 7} -  \frac{19\times 2}{7\times 2} =  \frac{49}{14} - \frac{38}{14} \\\\= \frac{49-38}{14} =\boxed{\bf{\frac{11}{14}}}
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What is the constant rate of change of (5,80) (4,64) and (6,96)
sveticcg [70]

Answer:

16

Step-by-step explanation:

The existence of the constant rate of change is given the ratio of y to x is the same. Then:

k_{1} = \frac{80}{5}

k_{1} = 16

k_{2} = \frac{64}{4}

k_{2} = 16

k_{3} = \frac{96}{6}

k_{3} = 16

In consequence, the constant rate of change is 16.

8 0
3 years ago
NEED The FULL equation. Will give Brainly. Thank you!
Ghella [55]

Answer:

\displaystyle  \sf h( - 1) =   - \frac{    2}{3}

Step-by-step explanation:

we are given a function

\displaystyle \sf h(x) =  \frac{2x - 6}{4 {x}^{2}  + 8}

we would like to simplify it for h(-1)

in order to do so

substitute the value of x

\displaystyle \sf h( - 1) =  \frac{2 \cdot - 1- 6}{4 { (- 1)}^{2}  + 8}

by order of PEMDAS

simplify square:

\displaystyle \sf h( - 1) =  \frac{2 \cdot - 1- 6}{4 { ( 1)}^{}  + 8}

simplify multiplication:

\displaystyle \sf h( - 1) =  \frac{ - 2 - 6}{4 { }^{}  + 8}

simplify addition:

\displaystyle \sf h( - 1) =  \frac{ - 2 - 6}{12}

simplify subtraction:

\displaystyle \sf h( - 1) =  \frac{   - 8}{12}

reduce fraction:

\displaystyle  \sf h( - 1) =   - \frac{    2}{3}

5 0
3 years ago
<img src="https://tex.z-dn.net/?f=%20-%205%282y%20-%208%29%20-%203%281%20%2B%20x%29%20-%207" id="TexFormula1" title=" - 5(2y - 8
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5 0
3 years ago
Read 2 more answers
prove that if f is a continuous and positive function on [0,1], there exists δ &gt; 0 such that f(x) &gt; δ for any x E [0,1] g
ValentinkaMS [17]

Answer:

I dont Know

Step-by-step explanation:

5 0
3 years ago
If the cost of carpeting a floor is $2.50 per square foot how much will it cost
Novosadov [1.4K]

Answer:

How many feet of the floor are you carpeting that is the real question

Step-by-step explanation:

It depends on how many feet you are putting the carpet on.

3 0
2 years ago
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