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1 year ago

What is 49.6 divided by 7.8?

Mathematics

1 answer:

fomenos1 year ago

8 0

Answer: 6.4

Step-by-step explanation: If rounding to one decimal place, your answer would be 6.4.

49.6 divided by 7.8 = 6.35897435...

Now, we see that after the 3 (The first decimal place) there is a five. Because we are rounding to the first decimal place the second decimal place will tell us to round up or down. In this case because it's a five, we would round up.

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A number that can be written as a fraction of two interfere is called a _____ number.it has a decimal representation that termin

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3 years ago

(7.1A; 7.1D; 7.1F)

ale4655 [162]

Answer:

Most Likely English because there are more english than the other lanaguages.

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3 years ago

4) Amir cycled 50 km in 2 hours whereas Samir cycled 100 km in 4 hours. Who cycled

ipn [44]

Answer:

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amir:

50/2=25km/h

Samir:

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Step-by-step explanation:

4 0

3 years ago

Find all values of c such that 3^2c+1=28*3^c-9. If you find more than one value of c, then list your values in increasing order

avanturin [10]

$3^{2c} + 1 = 28\times3^c - 9 \implies 3^{2c} - 28\times3^c = -10$

Complete the square on the left side:

$3^{2c} - 28\times3^c = \left(3^{2c}-28\times3^c+14^2\right)-14^2 = \left(3^c-14\right)^2 - 196$

Then the equation becomes

$\left(3^c-14\right)^2 - 196 = -10 \\\\ \left(3^c-14\right)^2 = 186 \\\\ 3^c - 14 = \pm\sqrt{186} \\\\ 3^c = 14\pm\sqrt{186}$

Both 14 + √186 and 14 - √186 are positive numbers, so we can take the logarithm (base 3) of both sides without issue:

$\log_3\left(3^c) = c = \log_3\left(14\pm\sqrt{186}\right)$

Then in increasing order, the solutions are

<em>c</em> = log₃(14 - √186), <em>c</em> = log₃(14 + √186)

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3 years ago

Will bought 4 slices of pizza for $6.00.

laiz [17]

Using Desmos, I have the graph below:

Also, the slope is 1.5 because 6/4=1.5.

6 0

3 years ago