CAN SOMEONE PLEASE HELP ME WITH THIS PLEASE!!

Explanation:

The formula for the area of a triangle is

A = 0.5*base*height

We plug in the base of 7 and height of 4 to get

A = 0.5*7*4

A = 3.5*4

A = 14

You can replace the 0.5 with 1/2 to get the same formula.

A = 14 cm^2

Step-by-step explanation:

The area of a triangle is

A = 1/2 bh

A = 1/2 (7) * 4

A = 1/2 (28)

A = 14 cm^2

none of the option is correct.

step-by-step explanation:

it says to find which expression equals 9^3 sqrt 10 = ?

9^3 sqrt 10 = 729 sqrt 10.

checking option a. 5 sqrt 10 + 4 sqrt 10

5 sqrt 10 + 4 sqrt 10

= 9 sqrt 10.

checking option b. 5^3 sqrt 10 + 4^3 sqrt 10

5^3 sqrt 10 + 4^3 sqrt 10

= 125 sqrt 10 + 64 sqrt 10

= 189 sqrt 10.

checking option c. 5 sqrt 10 + 4^3 sqrt 10

5 sqrt 10 + 4^3 sqrt 10

= 5 sqrt 10 + 64 sqrt 10

= 69 sqrt 10.

checking option d. 5^3 sqrt 10 + 4 sqrt 10

5^3 sqrt 10 + 4 sqrt 10

= 125 sqrt 10 + 4 sqrt 10

= 129 sqrt 10.

hence, none of the option is correct.

why can't you?

step-by-step explanation: