Step-by-step explanation:
every position in a number stands for a different power of 10, which is then multiplied by the digit in that position.
and the value of the whole number is the sum of these little individual calculations.
left of the decimal point we start with 10⁰ = 1 as basic value.
then the second position left of the decimal point stands for 10¹ = 10.
the third position left of the decimal point stands for 10² = 100.
and so on.
now, right of the decimal point we go in the other direction. the first position right of the decimal point stands for 10^-1 = 1/10.
the second position stands for 10^-2 = 1/100.
and so on.
so, the 7 in this number has the value of 7/10 or 7 tenths.
the given number would be fully written
3×10⁶ + 6×10⁵ + 8×10⁴ + 4×10³ + 5×10² + 9×10¹ + 1×10⁰ + 7×10^-1 + 4×10^-2
the decimal point tells us for a number where to begin counting with 10⁰ and 10^-1.
Answer:
Step-by-step explanation: The volume of the grain silo can be found by adding the volumes of all the solids of which it is composed (a cylinder and two cones). The silo is made up of a cylinder (with height 10 feet and base radius 5 feet) and two cones (each with height 5 ft and base radius 5 ft). The formulas given at the beginning of the SAT Math section:
Volume of a Cone:
Volume of a Cylinder:
can be used to determine the total volume of the silo. Since the two cones have identical dimensions, the total volume, in cubic feet, of the silo is given by
which is approximately equal to 1,047.2 cubic feet.
<u>The final answer is D.</u>
No more than 33 texts a month
you know the total amount spent, you know the total of the bill without texts
45=39.99+.15t
Answer:
Identify the terms and coefficients of each expression. 1. ... Frank buys p pounds of oranges for $2.29 per pound and the same number of pounds of apples for $1.69 per pound. ... .690 = total cost ... Write an expression to represent each situation. 9. Eliza earns $400 per week plus $15 for each new customer she signs up.
Step-by-step explanation:
4 1/2 + 3 3/4 = 4 2/4 + 3 3/4 = 7 5/4 = 8 1/4...what he needs for A and B
He used 12 inches of cable...
12 - 8 1/4 = 11 4/4 - 8 1/4 = 3 3/4....length left after A and B are made
he doesn't have enough to make the last one...
5 1/8 - 3 3/4 = 41/8 - 15/4 = 41/8 - 30/8 = 11/8 = 1 3/8....he is short by 1 3/8 inches
