Atriangle has a base of 9 feet and a height of 12 ft. what is the area of a triangle? a. 42ft^2 b. 54 ft^2 c. 84 ft^2 d. 108 ft^2

The correct answer is option B. 54 ft^2

Step-by-step explanation:

Formula:-

Area of triangle

Area A = bh/2

b - Base of triangle

h - Height of triangle

To find the area of triangle

Here base b = 9 ft and height h = 12 ft

Area, A = bh/2 = (9 * 12)/2 = 54 ft^2

Therefore the area of given triangle is 54 ft^2

The correct answer is option B. 54 ft^2

step-by-step explanation:

always plug in x. in this case, x equals 4.

i'm going to first solve 4(2+3x)

1) 4(2+3(4)) use pemdas to solve.

i'm going to multiply whats in the parenthesis first, so 3 times 4=12.

2)4 (2+12) i'm then going to multiply 4 by both numbers in the parenthesis (because multiplying comes before adding)

4 times 2= 8.   4 times 12= 48

4) (8+48)= 56 (answer)

i'm then going to solve 8+12x and plug in 4 for x.

1) 8 +12(4)

multiplying comes before adding, so i'm gonna multiply 12 and 4.

12 times 4= 48.

2) 8+48=56

both equal the same!

1. d.90

2. e. none of these (80)

3. a. 0

4. b. 6

5. e. none of these (10)

6. a. 5