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2 years ago

Find the area of a circle with the diameter of 3 centimeters. Use 3.14 for pi ().

Mathematics

1 answer:

wlad13 [49]2 years ago

3 0

Answer:

7.065 sq. cm

Step-by-step explanation:

Diameter= 3 cm

Since 2r=d, the radius is 1.5 cm

Circle area formula:

πr^2 --> 3.14(r^2)

Plug in r:

A=3.14(1.5^2)

A=3.14(2.25)

A=7.065

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Which of the following equations is equivalent to 4[x + 2(3x – 7)] = 22x – 65?

pickupchik [31]

Answer:

X= -3/2

Step-by-step explanation:

6x/6=-9/6

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3 years ago

Add. (3b + 5) + (2b + 4)

zaharov [31]

Answer:

$\huge{ \fbox{ \sf{5b + 9}}}$

Step-by-step explanation:

$\star{ \text{( \: 3b + 5) + (2b + 4)}}$

$\text{Step \: 1 \: : \sf{Remove \: the \: unnecessary \: parentheses}}$

$\text{When \: there \: is \: a \: ( + ) \: in \: front \: of \: an \: expression \: in \: parentheses \:, there \: is \: no \: need \: to \: change \: the \: sign \: of \: each \: term \: in \: the \: expression.}$

$\text{That \: means, \: the \: expression \: remains \: the \: same. \: Just \: you \: have \: to \: remove \: the \: parentheses.}$

$\mapsto{ \sf{3b + 5 + 2b + 4}}$

$\text{Step \: 2 \: : Collect \: like \: terms.}$

$\text{Like \: terms \: are \: those \: which \: have \: the \: same \: base.}$

$\mapsto{ \sf{3b + 2b + 5 + 4}}$

$\mapsto{ \sf{5b + 5 + 4}}$

$\text{ Step \: 3 \: : \sf{Add \: the \: numbers : 5 \: and \: 4}}$

$\mapsto{ \boxed {\sf{ {5b + 9}}}}$

Hope I helped!

Best regards! :D

~ $\sf{TheAnimeGirl}$

4 0

2 years ago

Find missing side<br> help quick pls

Zigmanuir [339]

Answer:

Step-by-step explanation:

18/6 = 3

24/8 = 3

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21/3 = 7

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3 years ago

Twenty-five students reported how many email accounts they have. The dot plot below shows the data collected:

Salsk061 [2.6K]

Answer:

The dots above the number 3 represent that 5 students have 3 email accounts

Step-by-step explanation:

each dot represents 1 out of the 25 students

The 3 on the horizontal line is Number of Email Accounts

Visual representation:

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2 years ago

Read 2 more answers

How much do subtract from 37/6 to make 6

choli [55]

37÷6
=6.1666666667
- 0.1666666667
=6

4 0

2 years ago