Find perimeter of a regular Pentagon sides 3.3cm long

Answers

Answer 1

Answer: 6.6 + 12.12 =18.18.

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Estimate each sum or difference 19.7-6.9=

What is the simplified form of the expression 3[14/(4^2 - 3^2) - 5]

a. -9
b. 27
c. 21
d. 6

Answers

ANSWER

A.
$- 9$

EXPLANATION

The given expression is

$3( \frac{14}{ {4}^(2) - {3}^(2) } - 5)$

Recall that,

${a}^(2) - {b}^(2) = (a - b)(a + b)$

We apply the difference of two squares formula to factor the numerator to obtain,

$= 3( (14)/( (4 - 3)(4 + 3) ) - 5)$
We simplify the factors in the denominator to get,

$= 3( (14)/( (1)(7) ) - 5)$
Let us cancel out the common factors now to get,

$= 3( 2 - 5)$

This will give us,

$= 3( - 3) = - 9$

The correct answer is A.

I`m not sure of the answer but if you look up Math Way it might be able to help.

Evaluate each expression. When the answer is not a whole number, write your answer as a fraction.
A.) (-4)
·
(-6)
B.)
(-24)
·
(- 7/6)
C.)
4 ÷ (-6)
D.) 4/3 ÷ -24

Answers

Answer:

Step-by-step explanation:

2/3

Does this help? I am not 100% sure

Help with 15? plz thx for your help

Answers

a) .34, 3/5, .7
because i know that 3/5 =.6 and 7 is bigger than 6 and 6 and 7 is bigger than 3
b)77/100 ,4/5, .817
i know because 77/100=.77 and this is the smallest and 4/5=.8 and this is the second smallest
c).425, 1/2, 3/5i know because 1/2=.5 and 3=5=.6

ellie and sara see 8 birds in the tree. ellie sees 2 fewer birds than sara. sara sees 5 birds. how many birds does ellie see?

Answers

She sees 3 birds in the tree

How many times can 6 go into 62?

Answers

6 can go into 62 10 times because 62/6 = 10 2/6, but you can have 2/6 of a 6, so you say you can put 6 in 10 times.

6 TIME 10 equals 60. It can go in 62 ten times. If you want to get specific, its 10 1/3

Find two square numbers which a
Have the sum of 130

Answers

1 + 129 equals 130 that equals 130

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