I need help with this questions

1st question

63.63

2nd question

28.3

3rd question

25.1

4th question

70.4

5th question

1404.93

Step-by-step explanation:

1.

area= π×r^2

3.142×4.5squared

radius is 4.5

4.5 squared is 20.25

20.25×3.142 is 63.6255

2.d.p is 63.63

2.

circumference is pi times diameter

3.142×9 is 28.278

1.d.p is 28.3

3.

4×2=8 (diameter)

circumference is pi times diameter

3.142×8=25.136

1.d.p=25.1

4.

11.2×2=22.4(diameter)

circumference is pi times diameter

3.142×22.4=70.3808

1.d.p=70.4

5.

area is pi times radius squared

radius=11.2

11.2 squared is 125.44

3.142×125.44=1404.928

2.d.p=1404.93

hope this helps!

use the power rule  

( a b ) n = a n b n

to distribute the exponent.

apply the product rule to  

3 x 2 y 3 . ( 3 x 2 ) 2 ( y 3 ) 2

apply the product rule to  

3 x 2 . 3 2 ( x 2 ) 2 ( y 3 ) 2

raise  

3

to the power of  

2 . 9 ( x 2 ) 2 ( y 3 ) 2 multiply the exponents in   ( x 2 ) 2

.

apply the power rule and multiply exponents,  

( a m ) n = a m n . 9 x 2 ⋅ 2 ( y 3 ) 2

multiply  

2   by   2 . 9 x 4 ( y 3 ) 2

multiply the exponents in  

( y 3 ) 2 .

apply the power rule and multiply exponents,  

( a m ) n = a m n . 9 x 4 y 3

⋅

2

multiply  

3   by   2 . 9 x 4 y 6

step-by-step explanation:

let's solve your equation step-by-step.

24−3x=−27

step 1: simplify both sides of the equation.

24−3x=−27

24+−3x=−27

−3x+24=−27

step 2: subtract 24 from both sides.

−3x+24−24=−27−24

−3x=−51

step 3: divide both sides by -3.

−3x

−3

=

−51

−3

x=17

answer:

x=17

step-by-step explanation:

mark brainliest and have a great day!