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3 years ago

Kim's cookie recipe calls for 1/3 of a cup of sugar. How much sugar would Kim use to make 1/4 of a batch of cookies?

Mathematics

1 answer:

bearhunter [10]3 years ago

3 0

For a quarter of the batch of cookies it requires a quarter of a third
$\frac{1}{3} \times \frac{1}{4} = \frac{1}{12}$

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There are 12 participants running in a 110m hurdles race. How many ways are there to award a gold, silver, and bronze medal?

prohojiy [21]

Answer:

220 ways

Step-by-step explanation:

The order matters because there's going to be a first, second, and third place.

So, 12P3=12!/(12-3)!*3!=12!/9!*3!=12*11*10*9!/9!*3!=12*11*10/6=220

Therefore, 220 ways

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3 years ago

Some isosceles triangles are not equilateral. a true or b false

Bas_tet [7]

That's true. The definition of an isosceles triangle is that it has at least 2 sides equal in length. Therefore, isosceles can be equilateral, but equilateral cannot be isosceles.

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3 years ago

Simplify expresion 5x³y(2x+3y-4) =

Debora [2.8K]

Answer:

5x3 y(5xy-4)

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3 years ago

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Evaluate the expression 9x , when x= 4, 7, and 2.5

satela [25.4K]

Step-by-step explanation:

When x = 4,

9x=9×4=36

When x = 7,

9x = 9×7 =63

When x = 2.5

9x = 9×2.5 = 23.5

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2 years ago

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If sin(x) = cos(y) for acute angles x and y, how are the angles related?

Vesnalui [34]

Answer:

b. complementary

Step-by-step explanation:

-Complementary angles are angles that add up to 90°.

-These are usually the two acute angles in the right triangle.

#To verify, lets take the two angles 30° and 60°:

$Cos \ 60\textdegree=0.5\\\\Sin \ 30\textdegree=0.5\\\\\therefore Sin \ 30\textdegree=Cos \ 60 \textdegree=0.5$

#We can reverse as:

$Sin \ 60\textdegree=0.86603\\\\Cos \ 30\textdegree=0.86603\\\\\therefore Sin \ 60\textdegree=Cos \ 30\textdegree=0.86603$

Hence, two angles are said to be complimentary if they sum up to 90°.

6 0

3 years ago