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1 year ago

Approximate the distance between (2,4) and (7,2) to the nearest tenth.

Mathematics

1 answer:

mojhsa [17]1 year ago

4 0

Answer:

5,2

Step-by-step explanation:

this is the distance of these points

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What is the scale factor to go from small triangle to the large triangle?

Elis [28]

Divide both numbers in one of the ratios by their highest common factor. This will give you the scale factor of the bigger triangle to the smaller triangle.

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2 years ago

A leprechaun places a magic penny under a girls pillow. The next night there are 2 magic pennies under her pillow. The following

kiruha [24]

Answer:

After 47 days she will have more than 90 trillion pennies.

Step-by-step explanation:

At the beginning there was 1 penny. At the second day the amount of pennies under the pillow became 2.

The amount of pennies doubled each day. So the series is,

$1,2,4,8,16,32,.....$

This series is in geometric progression.

As the pennies from each of the previous days are not being stored away until more pennies magically appear so the sum of series will be,

$S_n=\dfrac{a(r^n-1)}{r-1}$

where,

a = initial term = 1,

r = common ratio = 2,

As we have find the number of days that would elapse before she has a total of more than 90 trillion, so

$\Rightarrow 90\times 10^{12}\le \dfrac{1(2^n-1)}{2-1}$

$\Rightarrow 90\times 10^{12}\le \dfrac{2^n-1}{1}$

$\Rightarrow 90\times 10^{12}\le 2^n-1$

$\Rightarrow 2^n\ge 90\times 10^{12}+1$

$\Rightarrow \log 2^n\ge \log (90\times 10^{12}+1)$

$\Rightarrow n\times \log 2\ge \log (90\times 10^{12}+1)$

$\Rightarrow n \ge \dfrac{\log (90\times 10^{12}+1)}{\log 2}$

$\Rightarrow n \ge 46.4$

$\Rightarrow n\approx 47$

8 0

2 years ago

- 3/5 + - 3/4 can somebody help plz

Gnesinka [82]

- 3/5 + - 3/4
= (-12/20) = (-15/20)
= - 27/20
= - 1 7/20

8 0

3 years ago

Read 2 more answers

What is a mathematical expression of charles' law? chose one: _____t1/v1=t2/v1 _____v1/t1=v2/t2 _____v1t2=v2/t1 _____v1/t2=v2/t1

GarryVolchara [31]

The correct answer is: [B]: " v₁ / t₁ = v₂ / t₂ " .
______________________________________________

6 0

2 years ago

Estimate the product or quotient 4/7×1/6

vlabodo [156]

Answer:4/5

hope it helps

Step-by-step explanation:

6 0

3 years ago