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sladkih [1.3K]
3 years ago
11

Find the value of x, rounded to the nearest tenth. Answer options: 3.8, 4, 2.7, 2.9

Mathematics
2 answers:
Masteriza [31]3 years ago
4 0

Answer:

4

Step-by-step explanation:

If two chords intersect externally, then the product of the length of the chord and the length of the part outside the circle is a constant.

Thus from the figure,

we can deduce that:

8×3=6×x

collecting the like terms together we get:

24=6x

x=4

Zinaida [17]3 years ago
4 0

Answer:

x =4

Step-by-step explanation:

Refer the attached figure:

We will use Intersecting secants theorem

Theorem : When two secant lines intersect each other outside a circle, the products of their segments are equal. i.e. a\times b = c \times d(refer the attached figure)

So, using this theorem

x \times 6 = 3 \times 8

x = \frac{24}{6}

x = 4

Hence the value of x is 4.

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Help please! I got the answer wrong the first timee and im having trouble understanding!!!
andreyandreev [35.5K]

Answer:

the answer is 30 because if x = 3 they you would do 8x3 and get 24 then add the 6 to get 30

Step-by-step explanation:

Plz give brainly

5 0
3 years ago
Read 2 more answers
Please Help<br> Find the circumferences of of both circles to the nearest hundredth.
torisob [31]

Step-by-step explanation:

small circle

C= pi D

C = 3.1415(9)

C= 28.3 ft

large circle

C= 2(3.1415)(7)

C = 44 ft

Add 28.3 + 44 = 72.3 ft

7 0
2 years ago
I’ve been stumped on this question for a while (picture included)
julsineya [31]

Answer:

Since the question is indicating to use a graphing calculator, we can assume that we would be required to graph both of the equations.

Red = \sqrt{x+2}

Blue = 3x^2-4x-1

By graphing those equations, we can determine the solution(s)

The points where the graphs intersect would be your coordinates to derive your solution

Red = (1.864, 1.966)

Blue = (-0.427, 1.254)

The solutions would be the x-value of the ordered pair, in this case,

x = 1.864 AND x = -0.427

4 0
3 years ago
12c : 48c simplest form
Yuliya22 [10]

Answer:

1 : 4

Step-by-step explanation:

12c : 48c ( divide both parts by 12c )

= 1 : 4

5 0
2 years ago
16 OT 26
hram777 [196]

Answer:

Total = 166cm^2

Step-by-step explanation:

Given

See attachment

Required

Determine the surface area

The figure is made up of two cuboids and the surface area of a cuboid is:

Area = 2LB + 2LH + 2BH

Because the bottom part of the upper piece is not visible, the area is calculated as:

Area = 2LB + 2LH + BH

This gives:

Area = 2 * 5*4 + 2 * 4 * 2 + 5 * 2

Area = 66

For the bottom piece:

We calculate its area as Area = 2LB + 2LH + 2BH. However, the area of the invisible part will be subtracted.

So, we have:

Area = 2*3*5 + 2*3*5 + 2*5*5 - 2*5

Area = 100

The total surface area is:

Total = 66 + 100

Total = 166cm^2

5 0
3 years ago
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