Which expression has the same value as 9+24? 3(3+24)

9(1+24)

3(3+8)

3(9+8)

3 rd answer is correct.

Step-by-step explanation:

First let us find the value of ( 9 + 24 ).

Let us solve

9 + 24 = 33

And now we have to find the expression which is equal to 33.

Let us see.

⇒ 3 ( 3 + 24)

   3 × 27

   81            ( NO)

⇒ 9 ( 1 + 24 )

   9 × 25

    225         ( NO )

⇒ 3 ( 3 + 8 )

   3 × 11

    33         (YES)

⇒ 3 ( 9 + 8 )

   3 × 17

   51                ( NO)

There fore, the 3rd expression ( 3 ( 3 + 8 ) ) is equal to the given expression ( 9 + 24 ).

Hope this helps you :-)

Let me know if you have any other questions :-)

Step-by-step explanation:

Which expression has the same value as 9+24?

3(3+24)

9(1+24)

3(3+8)

3(9+8)

9 + 24 = 33

3(3+24) = 81

9(1+24) = 225

3(3+8) = 33

3(9+8) = 51

x = ±sqrt(10)

step-by-step explanation:

5 - 2x² = -15

subtract 5 from each side

5-5 - 2x² = -15-5

-2x^2   = -20

divide by -2 on each side

-2x^2   /-2= -20/-2

x^2 =10

take the square root on each side

sqrt(x^2 )=±sqrt(10)

x = ±sqrt(10)

check:

5 - 2x² = -15

+sqrt(10)

5 - 2(sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

-sqrt(10)

5 - 2(-sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15