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larisa [96]
3 years ago
14

Evaluate the expression 2b ^3+5 when b=3

Mathematics
1 answer:
pochemuha3 years ago
3 0

Answer:

59

Step-by-step explanation:

b^3 is 27

2(27) is 54

54+5 is 59

if u mean (2b)^3 then 2b is 6

6^3 is 216

plus 5 is 221

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What is the exponent of 50
german
2×5^{2} if you don't understand its 2 times 5 to the second power.
6 0
3 years ago
Linda's penny bank is 2/3 full. After she removes 80 pennies, it is 1/2 full. How many pennies can Linda's bank hold?
Ksju [112]
Let x = the total number of pennies her piggy bank can hold.
Then 2/3x = the number of pennies she started with
Then 2/3x - 80 = the number of pennies she has left after taking out 80 pennies.
Then 1/2x = the number of pennies she has left after taking out 80 pennies.
Build the equation.

2/3x - 80 = 1/2x

Subtract 1/2x from each side of the equation.

(2/3x - 80) - 1/2x = 1/2x - 1/2x

1/6x - 80 = 0

Add 80 to both sides of the equation.

(1/6x - 80) + 80 = 0 + 80

1/6x = 80

Divide both sides by 1/6.

(1/6x) / 1/6 = 80 / 1/6

x = 480

So, Linda's piggy bank can hold 480 pennies!

8 0
3 years ago
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Akimi4 [234]

Answer:

From smallest to greatest: -6, -3, 0, 1, 5

Step-by-step explanation:

The negative numbers will be on the left side of 0, and the positive numbers will be on the right side of 0.

3 0
3 years ago
What is the least common multiple of 31, 28, and 14?
WINSTONCH [101]

<u>⇨ By prime factorization method:</u>

\begin{array}{r | l}{\sf{2 & {\sf14,28,31} \\\cline{2-2} {\sf2 & {\sf7,14,31 \\\cline{2-2} {\sf7 & {\sf7,7,31 \\\cline{2-2} {\sf31 & {\sf1,1,31 \\\cline{2-2} & {\sf1,1,1\end{array}

{\sf{LCM\: = \:2 \:x\: 2 \:x\: 7 \:x\: 31}}\\\\{\sf{LCM \:= \:868}}\\}\\{\sf{Therefore,}}\\\\{\sf{LCM\:(14,\: 28,\: 31)\: = \:868

{\boxed{\sf{LCM\:=\:868}}

5 0
2 years ago
What is the area of a rectangle if one side has a length of 12x^3 and
mojhsa [17]

Answer:

The area of this rectangle is 72x^5

Step-by-step explanation:

A = l ∙ w

Let, l = length

Let, w = width

Step 1: Substitute the length and width for the two given values

    1. A = (12x³)(6x²)

Step 2: Multiply

    1. A = 72x^5

   

3 0
2 years ago
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