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2 years ago

14

Find the length of chord AD

1 answer:

Ket [755]2 years ago

7 0

9514 1404 393

Answer:

AD = 15

Step-by-step explanation:

The products of the segment lengths are the same.

(x -2)(x +7) = 4(2x -1)

x^2 +5x -14 = 8x -4

x^2 -3x -10 = 0

(x -5)(x +2) = 0

The positive solution is x=5.

Chord AD is ...

(x -2) +(x +7) = 2x +5 = 2(5) +5 = 15

Chord AD is 15 units long.

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Helppppppp pleasssseeeeee

Svet_ta [14]

$14mi-5\frac{7}{10}mi=[(14-5)-\frac{7}{10}]mi=(9-\frac{7}{10})mi=(8+1-\frac{7}{10})mi\\\\=(8+\frac{10}{10}-\frac{7}{10})mi=(8+\frac{10-7}{10})mi=(8+\frac{3}{10})mi=\boxed{8\frac{3}{10}mi}\\\\other\ method\\\\14mi-5\frac{7}{10}mi=14mi-5.7mi=(14-5-0.7)mi\\\\=(9-0.7)mi=\boxed{8.3mi}$

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3 years ago

plz help whats the answer to this question !!! calculate the mass of a gold bar that is 18.00cm long, 9.21cm wide, and 4.45cm hi

erik [133]

We have to find the mass of the gold bar.

We have gold bar in the shape of a rectangular prism.

The length, width, and the height of the gold bar is 18.00 centimeters, 9.21 centimeters, and 4.45 centimeters respectively.

First of all we will find the volume of the gold bar which is given by the volume of rectangular prism:

Volume of the gold bar $= length \times width\times height$

Plugging the values in the equation we get,

Volume of the gold bar $=18.00 \times 9.21 \times 4.45= 737.721cm^3$

Now that we have the volume we can find the mass by using the formula,

$Mass= density \times volume$

The density of the gold is 19.32 grams per cubic centimeter. Plugging in the values of density and volume we get:

$Mass = 19.32\times 737.721=14252.769$ grams

So, the mass of the gold bar is 14252.769 grams

7 0

3 years ago

NEED HELP ASAP !!!!<br><br> Which graphs represents the compound inequality x≤ 5 orx≥ 5?

Step2247 [10]

Answer:

b

Step-by-step explanation:

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2 years ago

Read 2 more answers

Can anyone help me asap plzz.Solve the inequality. (a + 5.7 > –2.3) (A)a > 3.4 (B)a > 8 (C)a > –3.4 (D)a > –8

Eduardwww [97]

Answer:

Solve the inequality. a + 5.7 > –2.3

(A)a > 3.4

(B)a > 8

(C)a > –3.4

<u>(D)a > –8</u>

Step-by-step explanation:

$a+5.7>-2.3\\-5.7 \\a>-8$

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3 years ago

What are the two plot lines for this

Lyrx [107]

Answer:

You can plot the lines by putting the values of x and y.

For y=x-2, if we put x= 2, then we got y=0

So, the point for this equation will be (2,0). Similarly, you can get many points for the equations and join them to plot lines in the graph.

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3 years ago