Answer:
B
Step-by-step explanation:
1.2 x 3.7 nearest tenth
1 x 4 nearest whole number
B
1.) 5+4/7(21+3x)=41
5+ 12+12/7x= 41
12/7x= 41-12-5
12/7x= 24
x= 24/ (12/7)
x=14
2.) x+15.09= -2.57
x = -2.57-15.09
x= -17.66
Answer:
Step-by-step explanation:
19
Answer:

Step-by-step explanation:
The volume of a triangular pyramid can be found using the following formula:

Basically, we have to multiply 1/3, the height, and the base area.
We know that the base area is 8.2 square centimeters and the height is 4 centimeters.

Substitute the values into the formula.

Multiply 8.2 square centimeters and 4 centimeters.

Multiply 1/3 and 32.8 cubic centimeters.

Round to the nearest tenth.
The 3 in the hundredth place tells us to leave the 9 in the tenth place.

The volume of the triangle pyramid is about 10.9 cubic centimeters.