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Lemur [1.5K]
3 years ago
13

Find the measure of AB

Mathematics
1 answer:
Sidana [21]3 years ago
8 0

Answer:

AB = 7

Step-by-step explanation:

When 2 secants intersect a circle from an external point, then

CB × CA = CD × CE, that is

5(5 - 4 + x) = 6(6 + 4) ← simplify left side

5(1 + x) = 6 × 10 ← distribute left side

5 + 5x = 60 ( subtract 5 from both sides )

5x = 55 ( divide both sides by 5 )

x = 11

Hence

AB = - 4 + x = - 4 + 11 = 7

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The dimensions of a rectangular dining room are 18 feet by 16 feet. If a scale factor of 1/4 is used to make a scale model of th
vivado [14]
Since the dimension of the scale model is fourth of dimensions of the room, divide by 4 the given dimensions.

                  new dimensions:
                              = 18 ft / 4 = 9/2 ft
                               = 16 ft / 4 = 4 ft

The area is calculated by multiplying the dimensions,
                       Area = (9/2 ft)(4 ft) = 18 ft²

Therefore, the area of the scale model is equal to 18 ft². 
5 0
4 years ago
What’s the midpoint of (10, -3) and (-2, -1)
Bogdan [553]

X point:

10+-2/2=

8/2=

4


Y point:

-3+-1/2=

-4/-2=

2


Your answer: (4,2)

5 0
4 years ago
Read 2 more answers
Please help!
Liono4ka [1.6K]
The equation
a/4 = 2/3
do cross multiplication
8 = 3a
a = 8/3

Performing the expression.
= (a - 4) / 4
= (8/3 - 4) / 4
= (8-12 / 3)/4
= -4/3 / 4
= -1 / 3

So the answer is letter b.
6 0
4 years ago
Help asap!!! its for a quiz lol
igor_vitrenko [27]

Answer:

65

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Exercise 1.7.1.
Korvikt [17]

thiz language is french

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3 years ago
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