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Kruka [31]
3 years ago
9

Which techniques can be used to evaluate the expression 12.75/ 1.5

Mathematics
1 answer:
sergeinik [125]3 years ago
6 0

Answer:

8.5

Step-by-step explanation:

Given the expression 12.75/1.5. The technique in solving the division expression is as shown

First we can write the decimals as fraction as shown;

12.75 = 1275/100

1.5 = 15/10

12.75/1.5 = (1275/100)÷(15/10)

12.75/1.5 = 1275/100×10/15

12.75/1.5 = 1275/10 × 1/15

12.75/1.5 = 1275/150

12.75/1.5 = 8.5

Hence the result of the division is 8.5

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Which expression below gives the average rate of change of the function h(x)=4^(x+2)+7 on the interval –3 ≤ x ≤ 5?
viktelen [127]

Answer:

\frac{4^8-1}{32}

Step-by-step explanation:

h(x)=4^{(x+2)} +7

We know that formula for average rate of change of a function from a to b is

\frac{f(b)-f(a)}{b-a}

Here f equals h and a =-3 b=5

h(a) = 4^{5+2} +7 = 4^7+7

and

h(b) = 4^{-3+2} +7 = \frac{1}{4} +7

h(b)-h(a) =4^7-\frac{1}{4} =\frac{4^8-1}{4}

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Hence average rate of change is

\frac{4^8-1}{4}(\frac{1}{8} )=\frac{4^8-1}{32}

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<span>weeks C. $20 down with equal payments of $10 for 12 </span>
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 8x-6y=-96  add to this -4 times the second equation...
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