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2 years ago

How this is hard and im hating this right now :/

Mathematics

1 answer:

vivado [14]2 years ago

6 0

Answer:

$\boxed{\dfrac{y}{x}}$

Step-by-step explanation:

$\dfrac{\dfrac{1}{x} }{\dfrac{1}{y} } \ \text{can also be written as} \ \dfrac{1}{x} \div \dfrac{1}{y}$

-------------------------------------------

$\rightarrow \dfrac{1}{x} \div \dfrac{1}{y}$

Simplifying the expression using "a ÷ b = a x 1/b"

$\rightarrow \dfrac{1}{x} \times y$

$\rightarrow \boxed{\dfrac{y}{x}}$

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The diameter of a circleis 170inches. The circle has two chords of length 26 inches. What is the distance from each chord to the

vivado [14]

Answer:

Hence the Distance from each other chord to center is 84 inches.

Step-by-step explanation:

Given:

Diameter =170 inches

2 chords with each length =26 inches.

To Find:

Distance of each chord from the circle.

Solution:

Consider a circle with center as O ,

And OA as Radius

(Refer the attachment)

So as chord be BC and DE respectively with each of 26 length

They have both same length so they should located at same distance from center but as mirror images of each other opposite side of the diameter as shown in fig.

Hence we can calculate for one chord as follows:

Radius =diameter/2=170/2=85

r=85 inches.

Let distance from center t o chord be 'x'

Now draw perpendicular to chord BC with F as midpoint for chord and join endpoints of chord to the center which forms triangle OFC as right angled triangle,

By using pythagorus Theorem

$OC^2=FC^2+OF^2$

Here OC=85 inches , FC=26/2=13 inches.

$85^2=13^2+OF^2$

$OF^2=85^2 -13^2$

$OF^2=7225-169$

$OF^2=$ 7056

$OF=84$ inches

Hence the Distance from each other chord to center is 84 inches.

7 0

4 years ago

Expand and simplify completely (2x+3y)^4

Solnce55 [7]

Answer:

16x^4+96x^3y+216x^2 y^2+216xy^3+81y^4

3 0

3 years ago

Solve the following quadratic equation: (3x – 5)2 = 4

Katarina [22]

Answer:

Step-by-step explanation:

It is mandatory (required) to use " ^ " for exponentiation:

(3x – 5)^2 = 4

Taking the square root of both sides, we get

3x - 5 = ±2, or

3x = 5 ±2, or

(a) 3x = 7 => x = 7/3, and

(b) 3x = 3, or x = 1

7 0

3 years ago

HELP PLEASE 10 POINTS!!!

7nadin3 [17]

Answer:

First, write 80% as 80100. Then write an equivalent ratio that has the answer in the numerator and 200 in the denominator. 100 x 2 is 200, so 80 x 2 will be the answer. 80 x 2 = 160. The answer is $160.

3 0

3 years ago

The ratio of the side length of Square AA to the side length of Square BB is 4:94:9. The side length of Square AA is 1212 yards.

ivanzaharov [21]

The side length of square AA is 1212 yards. The ratios of side length between AA and BB is 4:9. To determine the side length of BB, we need to compare the ratios: (4/9)=(1212/x) where x is the side length of BB. If you solve for x, then you have: x= (1212)*(9/4) = 2727 yards A square has 4 equal sides so once you have the side length, you can solve for the perimeter, which is the total length of all the sides. Perimeter = 4 * 2727 = 10,908 yards.

7 0

3 years ago