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3 years ago

Which is the shorter path from A to B, round the 2 smaller semi-circles or around the large semi-circle

Mathematics

1 answer:

natulia [17]3 years ago

6 0

Answer:

The path length is the same for the small and large semicircles.

Step-by-step explanation:

The distance around the large semicircle = 1/2 * π * diameter

= 1/2*8*π

= 4π m.

The distance around the 2 smaller semicircles

= 1/2 * 4 * π + 1/2 * 4 * π

= 2π + 2π

= 4π m.

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Lia is cooking.She needs 2 3/4 cups of flour and 4 3/4 cups of cornmeal.Lia wants to bake sure she has a bowl big enough to hold

Sholpan [36]

Answer:

Lia needs $7\frac{2}{4}\ cups$ of flour and corn meal.

Step-by-step explanation:

Given:

Amount of flour needed = $2\frac{3}{4} \ cups$

$2\frac{3}{4} \ cups$ can be Rewritten as $\frac{11}{4}\ cups$

Amount of flour needed = $\frac{11}{4}\ cups$

Amount of Corn meal needed = $4\frac{3}{4}\ cups$

$4\frac{3}{4}\ cups$ can be Rewritten as $\frac{19}{4}\ cups$

Amount of Corn meal needed = $\frac{19}{4}\ cups$

We need to find the total amount of of flour and cornmeal she needs.

Solution:

Now we can say that;

the total amount of of flour and cornmeal she needs is equal to sum of Amount of flour needed and Amount of Corn meal needed.

framing in equation form we get;

the total amount of of flour and cornmeal she needs = $\frac{11}{4}+\frac{19}{4}=\frac{11+19}{4}=\frac{30}{4}\ cups\ \ OR\ \ 7\frac{2}{4}\ cups$

Since Answers are not given:

Kindly chose the answer which contains below data.

Hence Lia needs $7\frac{2}{4}\ cups$ of flour and corn meal.

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