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bearhunter [10]
3 years ago
6

Please helppp!! Round to the nearest hundredths

Mathematics
2 answers:
meriva3 years ago
7 0

Answer:

Step-by-step explanation:

diameter = 42 mm

radius (r) = 42/2 = 21mm

SA of semicircle = 3πr²

=3*\frac{22}{7}*21*21\\\\=3*22*3*21\\\\=4158mm^{2}

densk [106]3 years ago
3 0

Answer:1385.44mm sq

Step-by-step explanation: surface area of a circle = pi x radius squared

3.142 x 21 squared

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A map has a scale of 2 inches : 25 miles. Chandra uses the map to find the distance from the zoo to her house. The distance on t
geniusboy [140]

Step-by-step explanation:

Turn the ratio into a fraction

2in /25 mi

You want to have miles so you can flip the fraction and mutiply to cancel out the inches

(25mi / 2in) x 5in = (25 mi x 5in) / 2in

5 0
3 years ago
Jessica is playing a board game and uses a number cube to determine how many spaces she can move for each turn.
yulyashka [42]

Answer: 1 out of 6

Step-by-step explanation:  A number cube has 6 numbers on it. Only one of them is a two. If she were using two number cubes then she would have 2 out of 12 chances of landing on a number 2.

4 0
3 years ago
Simplify.
sergey [27]
2y+7z hope this helped dude
6 0
3 years ago
Read 2 more answers
Divide 260 in the ratio 1:3
den301095 [7]
The divided will 65 and 195.

1:3 =260
1x+3x =260
Add 1x and 3x
4x=260
Divide the four on both sides
4x/4=260/4
x=65
Now find the one for 3 by multiplying
1x=65
3x=195


5 0
3 years ago
You purchased a new car for 17,999 in the year 2015. It is now 2020 and you want to sell your car for a fair price. If your car
salantis [7]

Answer:

$7,986.25

Step-by-step explanation:

We can use the following formula to solve:

A=P(1-r)^t

<em>P = principal value</em>

<em>r = rate (decimal)</em>

<em>t = time (years)</em>

<em />

First, change 15% into a decimal:

15% -> \frac{15}{100} -> 0.15

Since 2015 and 2020 are 5 years apart, we will use 5 for t. Now, plug the values into the equation:

A=17,999(1-0.15)^5

A=7,986.25

Your car would be worth $7,986.25

8 0
3 years ago
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