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2 years ago

1/2(a+b)-(a-b)exponent2 when a=18 and b=14

Mathematics

1 answer:

lora16 [44]2 years ago

8 0

Answer:

Step-by-step explanation:

Substitute the given values for a and b into the expression

$\frac{1}{2}$ (18 + 14) - (18 - 14)²

= $\frac{1}{2}$ × 32 - 4²

= 16 - 16

= 0

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Bryan and Jadyn had barbeque potato chips and soda at a football party. Bryan ate 5 oz of chips and drank 1 cup of soda for a

MaRussiya [10]

Answer:

1 oz of chips has 120mg of sodium, while in 1 cup of soda there are 50mg of sodium.

Step-by-step explanation:

This question can be solved by a system of equations.

I am going to say that:

x is the number of mg of sodium in 1 oz of chips.

y is the number of mg of sodium in a cup of soda.

Bryan ate 5 oz of chips and drank 1 cup of soda for a total of 650 mg of sodium.

This means that:

$5x + y = 650$

Jadyn ate 1 oz of chips and drank 5 cups of soda for a total of 250 mg of sodium.

This means that:

$x + 5y = 250$

From the first equation:

$y = 650 - 5x$

Replacing in the second

$x + 5(650 - 5x) = 250$

$x + 3250 - 25x = 250$

$25x = 3000$

$x = \frac{3000}{25}$

$x = 120$

$y = 650 - 5x = 650 - 5*120 = 650 - 600 = 50$

1 oz of chips has 120mg of sodium, while in 1 cup of soda there are 50mg of sodium.

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2 years ago

One of the legs of a right triangle measures 9 cm and the other leg measures 16 cm.

aalyn [17]

Answer:

18.4 cm

Step-by-step explanation:

Using Pythagoras rule:

Hypotenuse =

$\sqrt{9 ^{2} + 16 ^{2} }$

= 18.4 cm

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2 years ago

The length of a rectangle is 4 more than twice the width. If the length is 62, find the width.

lukranit [14]

62 - 4 = 58
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The width is 29.

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Vlad1618 [11]

Answer:

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Step-by-step explanation:

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1 year ago