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2 years ago

Please answer this, i will give brainliest. lol

Mathematics

1 answer:

Mila [183]2 years ago

4 0

Answer:

Step-by-step explanation:

10-43:

A. To get the area of a circle, multiply the diameter (20cm), by pi. (3.14)

B. Area=314.16cm²

10-45:

A. 30%.

B. The waterpark and the amusement park.

C. I would recommend doing another survey between the waterpark and the amusement park.

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A florist needs several pieces of ribbon that are 5 and 1/2 inches long if she begins with a piece of ribbon that is 264 inches

dimaraw [331]

Answer:

Step-by-step explanation:

(264 in)/(5.5 in/piece) = (264/5.5) pieces = 48 pieces

_____

Division is the usual shortcut for repeated subtraction. You could subtract 5.5 from 264 until you get to zero. You would have to do 48 subtractions. It is easier to divide 264 by 5.5 to see how many times it goes.

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2 years ago

Does anyone know the answers to I-ready ( Math Lvl F: Understanding Algerbretic Expressions)

sergij07 [2.7K]

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B 10x+5

Step-by-step explanation:

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3 years ago

Anthony has run 20 miles this month. For the rest of the month, he plans to run the same amount of miles each day. There are 5 d

vfiekz [6]

Answer:

Step-by-step explanation:

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2 years ago

Mathematical induction of 3k-1 ≥ 4k ( 3k = k power of 3 )

tresset_1 [31]

For making mathematical induction, we need:

a base case

An $n_0$ for which the relation holds true

the induction step

if its true for $n_i$ , then, is true for $n_{i+1}$

the relationship is not true for 1 or 2

$1^3-1 = 0 < 4*1$

$2^3-1 = 8 -1 = 7 < 4*2 = 8$

but, is true for 3

$3^3-1 = 27 -1 = 26 > 4*3 = 12$

<h3>induction step</h3>

lets say that the relationship is true for n, this is

$n^3 -1 \ge 4 n$

lets add 4 on each side, this is

$n^3 -1 + 4 \ge 4 n + 4$

$n^3 + 3 \ge 4 (n + 1)$

now

$(n+1)^3 = n^3 +3 n^2 + 3 n + 1$

$(n+1)^3 \ge n^3 + 3 n$

if $n \ge 1$ then $3 n \ge 3$ , so

$(n+1)^3 \ge n^3 + 3 n \ge n^3 + 3$

$(n+1)^3 \ge n^3 + 3 \ge 4 (n + 1)$

$(n+1)^3 \ge 4 (n + 1)$

and this is what we were looking for!

So, for any natural equal or greater than 3, the relationship is true.

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3 years ago

What is the volume of a square pyramid with base side length of 22 cm and height of 8cm?

Inessa05 [86]

Answer is 1290.67. I rounded to the nearest tenth but it goes on.

5 0

3 years ago

Read 2 more answers