Nadine bought the ingredients for 24 cupcakes for $5.60. She sold each cupcake for $1.30. She saved 25% of the profits and used
1 answer:
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Answer :
Step-by-step explanation :
To find the product of
First we expand the bracket ,
it implies that, we use the expression outside the bracket to multiply individual expressions inside the bracket.
Hence
we now apply the law of indices
meaning, when you are multiplying two expressions with the same bases , repeat one of the bases and add the exponents.
Then, simplify to obtain
Step-by-step explanation :
To find the product of
First we expand the bracket ,
it implies that, we use the expression outside the bracket to multiply individual expressions inside the bracket.
Hence
we now apply the law of indices
meaning, when you are multiplying two expressions with the same bases , repeat one of the bases and add the exponents.
Then, simplify to obtain
Answer:
29.58 mi²
Step-by-step explanation:
The figure is a trapezium and area can be calculated using the formula
A = h(a + b)
where h is the height and a, b the parallel bases
here h = 3.4, a = 5.4 and b = 12
A = 0.5 × 3.4(5.4 + 12) = 1.7 × 17.4 = 29.58 mi²