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3 years ago

What is 7 3/4 minus 2 3/16

Mathematics

2 answers:

Elena L [17]3 years ago

8 0

Answer: $5\frac{19}{16}$

Turn 7 3/4 into an Improper Fraction

Multiply 7*4 and get 28. Now add 3 and get 31.

7 3/4 = 31/4

Turn 2 3/16 into an Improper Fraction

Multiply 2*16 and get 32. Now add 3 and get 35.

2 3/16 = 35/16

Your new problem should be: 31/4-35/16

Subtract

$\frac{31}{4} -\frac{35}{16}=\frac{89}{16}$

Turn 89/16 into a Mixed Number

$\frac{89}{16} =5\frac{19}{16}$

DanielleElmas [232]3 years ago

8 0

the answer is 5.5625 and then you simplify it

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3 years ago

Find the diameter of a circle with and area of 90.25 pi m square

EleoNora [17]

Answer:

The diameter of the circle is 19 m

Step-by-step explanation:

The formula of the area of a circle is A = π r², where r is its radius

To find the diameter from the area of the circle equate the formula of the area by the value of the area to find r, then multiply r by 2 because the diameter of a circle is equal twice its radius

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∵ A = π r²

- Equate A by 90.25 π

∴ π r² = 90.25 π

- Divide both sides by π

∴ r² = 90.25

- Take √ for both sides

∴ r = 9.5

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∴ d = 2 r

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4 years ago

Which equation can be used to solve for c? Triangle A B C is shown. Angle A C B is 90 degrees and angle A B C is 35 degrees. The

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Answer:

The correct option is B) $c=\frac{5}{\cos35^0}$ .

Step-by-step explanation:

Consider the provided information.

Angle A C B is 90 degrees and angle A B C is 35 degrees.

The required figure is shown below:

We need to find the value of c.

Use the trigonometric function: $\cos\theta=\frac{Adjacent}{Hypotenuse}$

$\cos35^0=\frac{5}{c}$

$c=\frac{5}{\cos35^0}$

Hence, the correct option is B) $c=\frac{5}{\cos35^0}$ .

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