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Sedbober [7]
3 years ago
7

Work out the area of this circle radius 10cm take pie to be 3.142 and write down all the digest given by your calculator

Mathematics
2 answers:
Crazy boy [7]3 years ago
8 0

Answer:

314.2 cm²

Step-by-step explanation:

A = π·r²

= 3.142·10²

= 3.142·100

= 314.2 cm²

Alika [10]3 years ago
7 0

Answer:

314.2

Step-by-step explanation:

Area of a circle is: πr²

if radius is 10 then A = π*10² = 3.142 *100 =

314.2

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I’m not sure how to do this please help
Nikolay [14]

Answer:

B :step 2   she didnt collect all the like terms and calculate

Step-by-step explanation:

first rewrite  remove all (  )Parentheses

2nd   collect all like terms and calculate

a^4 + 7a -16 -12^a^3 + 5a -3

a^4 + 12a - 19 - 12a^3     ( Like terms are 7a +5a  and -16 +-3)

so she skipped the second step

3 0
2 years ago
Given functions f and g, find f-g.
Eva8 [605]

Answer:

-5x-5

Step-by-step explanation:

original functions:

f(x)=3x-8\\g(x)=8x-3

Subtract the polynomials:

f(x)-g(x) = (3x-8) - (8x-3)

Distribute the negative sign:

3x-8-8x+3

Combine like terms:

(3x-8x)+(-8+3)

Add like terms:

-5x-5

5 0
2 years ago
a taxi service charges an initial fee of $5 plus $1.80 per mile. How many miles can you travel for $12
user100 [1]
First you need to write an equation or an inequality.

5+1.80x<=12 
the x here is how many miles you are paying for, now you just solve for x. 

5+1.80x<=12
-5                 -5

1.80x<=7
/1.80         /1.80
x<=3.8

you can travel only three whole miles, you do not have enough money to go four full miles.
4 0
3 years ago
25 Trent's watch runs at half the speed itshould. In other words, the hands on thewatch move only a half hour when an hourof tim
sergeinik [125]

Given that Trent's watch runs at half the speed it should run, this implies that

for every hour passed, his watch moves by half an hour.

Hence, for every half-hour passed, Trent's watch moves by 15 minutes.

Hence, when the real time is 10:30 am, Trent's watch will show 9:15 am.

6 0
1 year ago
What is the slope of the equation y=7x-10
sweet-ann [11.9K]
The slope is 7. whatever number is next to x is the slope. if there is no x then it is a horizontal or vertical line.
6 0
3 years ago
Read 2 more answers
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