All categories

4 years ago

If the radius of the circle is 9 cm, what is the area of sector AOB

Mathematics

1 answer:

cupoosta [38]4 years ago

3 0

254.47 you can google this kid just search formula for the area of a circle. Or A=pie*r^2

You might be interested in

8x-3y=5 I need this awnser

frutty [35]

Go too math websites!

8 0

3 years ago

Read 2 more answers

A yogurt costs 55p. How many yogurts can be bought for three pounds?

Arturiano [62]

300 divided by 55 = 5.45
It’s 5 since it’s the whole number

7 0

4 years ago

At right angles.) 4 m 4 m 2 m 2 m 7 m 2 3 m 7 m 11 m

Arisa [49]

Answer:

Step-by-step explanation:

Area of fig 1 = 1 x b = 7 x 4 = 28

Area of fig 2 = l x b = (7-2) x 3 = 5 x 3 = 15

Area of fig 1 = 1 x b = 7 x 4 = 28 (same as ig 1)

Area of whole fig = fig 1 + fig 2 + fig 3 = 28+15+28 = 71

I hope im right !!

6 0

3 years ago

Read 2 more answers

PLSSSSSSS HELPPPPPPPPPP MEEEEEEEEEEEEEE

lozanna [386]

Answer:

x= 16

Step-by-step explanation:

8x + 50 = 178

8x = 178- 50

8x = 128

x = 128/8

x = 16

8 0

3 years ago

Read 2 more answers

Solve for y 16y^2-25=0

Pepsi [2]

Answer:

$\large\boxed{x=-\dfrac{5}{4}\ \vee\ x=\dfrac{5}{4}}$

Step-by-step explanation:

$16y^2-25=0\\\\METHOD\ 1:\\\text{use}\ a^2-b^2=(a-b)(a+b)\\\\16=4^2\ \text{and}\ 25=5^2\ \text{therefore we have}\\\\4^2y^2-5^2=0\\\\(4y)^2-5^2=0\\\\(4y-5)(4y+5)+0\iff4y-5=0\ \vee\ 4y+5=0\\\\4y-5=0\qquad\text{add 5 to both sides}\\4y=5\qquad\text{divide both sides by 4}\\\boxed{y=\dfrac{5}{4}}\\\\4y+5=0\qquad\text{subtract 5 from both sides}\\4y=-5\qquad\text{divide both sides by 4}\\\boxed{x=-\dfrac{5}{4}}$

$METHOD\ 2:\\\\16y^2-25=0\qquad\text{add 25 to both sides}\\\\16y^2=25\qquad\text{divide both sides by 16}\\\\y^2=\dfrac{25}{16}\to y=\pm\sqrt{\dfrac{25}{26}}\\\\y=-\dfrac{\sqrt{25}}{\sqrt{16}}\ \vee\ x=\dfrac{\sqrt{25}}{\sqrt{16}}\\\\\boxed{y=-\dfrac{5}{4}\ \vee\ x=\dfrac{5}{4}}$

7 0

3 years ago

Read 2 more answers