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inessss [21]
3 years ago
7

What is the value of the expression? 9^8 over 9^-4 x 9^10 (Fraction)? Please help me :)

Mathematics
1 answer:
Alchen [17]3 years ago
5 0
The answer is 3^12. i'd explain it but i took me seven minutes to do the the problem myself. :)
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A chord of a circle is 66cm long, it is 56 cm from the center of the circle. What is the radius of the circle?
ser-zykov [4K]

Answer:

radius = 65 cm

Step-by-step explanation:

(See image attached for better comprehension)

To find the value of the radius, we just need to draw a triangle, where one side is half of the chord (the distance from the chord to the center creates a point that divides the chord in two equal segments), other side is the distance from the chord to the center, and the hypotenusa will be the radius.

So, using Pythagoras' theorem, we have that:

r^2 = 56^2 + 33^2

r^2 = 4225

r = 65 cm

4 0
3 years ago
Factorise x(6x - 5y) - 4(6x - 5y)^2
Fed [463]

Answer:

(6x-5y)(20y-23x)

Step-by-step explanation:

x(6x - 5y) - 4(6x - 5y)^2

= (6x-5y)(x-4(6x-5y))

= (6x-5y)(x-24x+20y)

= (6x-5y)(20y-23x)

5 0
3 years ago
What is the value of H
never [62]

Answer:

h = 55

Step-by-step explanation:

the sum of the 3 angles in a triangle = 180°

the 2 unknown interior angles = 180 - 2h ( straight angle ), hence

the sum of the 3 angles

180- 2h + 180 - 2h + 40 = 180

400 - 4h = 180 ( subtract 400 from both sides )

- 4h = - 220 ( divide both sides by - 4 )

h = 55


6 0
3 years ago
At the market, 8 apples cost $4, 4. How much do 9 apples cost?
ella [17]

Answer: i need more information 8 apples cost $4, 4???????


Step-by-step explanation:


7 0
3 years ago
FREE free freeeeeeeeeeeeeeeeeeee
Margarita [4]

Answer:ayayaa

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
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