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4 years ago

Chance has $2 in quarters. Blake has $5 in dollar coins. Whose coins have the greatest mass? Explain.

2 answers:

5 0

Chance coins have a greater mass because the coin mass of a quarter is 5.67 you multiply by 8, which is the number of quaters you have and you get 45.36 grams. if you do the same with the dollar coins, meaning you multiply the the mass by the number of coins, you should get 40.5 grams.

Mariana [72]4 years ago

3 0

The mass of Chance's coins if greater then Blake's

$2 in quarters is 8 quarters because every dollar is 4 quarters
so 8×5.67 is 45.36
$5 In dollar coins is 5 coins
so 5×8.1 which is 40.5

45.36 (Chance's coins) is greater than 40.5 (Blake's coins)

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Y_Kistochka [10]

The correct answer is option B which is $SinA = \dfrac{4}{5}$ , $tanA = \dfrac{4}{3}$ , $SecA=\dfrac{5}{3}$ ,

$CosA=\dfrac{3}{5}$ , $CotA=\dfrac{3}{4}$ and $CscA=\dfrac{5}{4}$ .

<h3>What is trigonometry?</h3>

Trigonometry is the branch of mathematics which set up a relationship between the sides and angle of the right-angle triangles.

From the figure we can see that two sides are Ab = 15 cm and BC = 12 cm third side will be calculated by pythagorean theorem.

AC² = AB² - BC²

AC² = 15² - 12²

AC² = 81

AC = √81

AC = 9 cm

Now all the trigonometry identities are:-

$SinA =\dfrac{BC}{AB}=\dfrac{12}{15}= \dfrac{4}{5}$ ,

$tanA =\dfrac{BC}{AC}=\dfrac{12}{9}= \dfrac{4}{3}$ ,

$SecA=\dfrac{AB}{AC}=\dfrac{15}{9}= \dfrac{5}{3}$ ,

$CosA=\dfrac{AC}{AB}=\dfrac{9}{15}= \dfrac{3}{5}$ ,

$CotA=\dfrac{AC}{BC}=\dfrac{9}{12}=}\dfrac{3}{4}$

$CscA=\dfrac{AB}{BC}=\dfrac{15}{12}= \dfrac{5}{4}$ .

Therefore correct answer is option B which is $SinA = \dfrac{4}{5}$ , $tanA = \dfrac{4}{3}$ , $SecA=\dfrac{5}{3}$ , $CosA=\dfrac{3}{5}$ , $CotA=\dfrac{3}{4}$ and $CscA=\dfrac{5}{4}$ .

To know more about Trigonometry follow

brainly.com/question/24349828

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6 0

2 years ago

a store has a contest to guess the mass of 10,000 penuts. if a penut has a mas of about 0.45 gram, what would be a reasonable gu

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4 years ago

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lara31 [8.8K]

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Step-by-step explanation:

The equation for a triangle is base times height times 1/2 so if 8 times 6 gives you 48 once you divide it by two it gives you 24

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3 years ago

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Ksju [112]

Answer:

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3 years ago

Schach [20]

Answer:

step 1:

2,-5

step 2:

7,1

step 3:

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