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Genrish500 [490]
3 years ago
12

Find x [Angles and Segment]

Mathematics
1 answer:
Alex_Xolod [135]3 years ago
6 0

Answer:

  8.3 cm

Step-by-step explanation:

The product of lengths to the near and far point of intersection with the circle is the same in all cases:

  (7 cm)(7 cm) = (y)(11 cm +y) = (4 cm)(4 cm +x)

Since we're only interested in x, we can divide by 4 and subtract 4:

  49 cm² = (4 cm)(4 cm +x)

  (49/4) cm = 4 cm +x . . . . . . divide by 4 cm

  8.25 cm = x . . . . . . . . . . . . . subtract 4 cm

To the nearest tenth, x = 8.3 cm.

_____

For a tangent segment, the two points of intersection with the circle are the same point, so the product of lengths is the square of the length.

___

The angles depend on the size of the circle, which is not given.

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For the function f(x)=5x2−5x, evaluate and simplify.
Marianna [84]

9514 1404 393

Answer:

  10x -5 +5h

Step-by-step explanation:

Use the function definition with the given arguments.

  \dfrac{f(x+h)-f(x)}{h}=\dfrac{(5(x+h)^2-5(x+h))-(5x^2-5x)}{h}\\\\=\dfrac{(5(x^2+2hx+h^2)-5(x+h))-(5x^2-5x)}{h}\\\\=\dfrac{5x^2+10hx+5h^2-5x-5h-5x^2+5x}{h}=\dfrac{10hx-5h+5h^2}{h}\\\\=\boxed{10x-5+5h}

7 0
3 years ago
I need help in math :(
IgorLugansk [536]
B. 8 1/5 is the answer
7 0
3 years ago
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A keyboard typically has 46 keys that can be modified and four ways to modify them, SHIFT, CTRL, ALT, and no modification. For i
Oksana_A [137]
I am thinking its 414 not 100%  tho

7 0
3 years ago
H(x) = 17 + x/6 h(-18) = ___<br> x/6 is a fraction <br> please helpp
gayaneshka [121]
Simply plug in the value for x.

If x is equal to -18, then plug in -18 for x.

Example:

f(x) = 15 + x/5. 
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Then solve the equation.

A function is just something that receives some value and then barfs a value out. This is an IO relationship. (Input/Output).
6 0
2 years ago
Rectangle ABCD has vertices A(15, 18), B(−5, 3), C(1, −5), and D(21, 10).
erastova [34]

Answer:

1. 25

2. 10

3. 250

Step-by-step explanation:

Distance formula :√ (x2 - x1)² + (y2 - y1)² √ ()²  + ()²  

1. LENGTH OF AB :

A = 15,18

B = -5,3

√ (-5 - 15)²  + (3 - 18)²  

= √ 400 + 225

= 25

2. LENGTH OF AD :

A = 15,18

D = 21,10

√ (21 - 15)²  + (10 - 18)²  

= √36 + 64

= 10

AREA :

A=w x l

10 x25 = 250

4 0
2 years ago
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