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zhannawk [14.2K]
2 years ago
12

A railroad crossing sign has a diameter of 30 inches. what is the area of the sign?

Mathematics
2 answers:
WITCHER [35]2 years ago
6 0

Answer:

about 706.5 or 706.86

Step-by-step explanation:

to find this answer we need to use the area formula of a circle which is A = πr ^2

we know the diameter is 30, and the radius is half the of diameter, so we take 30 and divide it by 2, which should give us 15 for the radius. ( 30/2 = 15, so r = 15)

depending on how your teacher wants u to answer this you can use π on a calculator or use 3.14

now just plug in your numbers to formula

A = 3.14 * 15^2 or A = π * 15^2

and should equal about 706.5 or 706.86 (depending on if you use 3.14 or π)

Anna007 [38]2 years ago
5 0

Answer:

706.5m^2

Step-by-step explanation:

The sign is a circle

Area of a circle is (pi)r^2

d = 30 in -> r = d/2  = 30/2 = 15

Area = 3.14 x (15)^2 = 706.5m^2

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Gene moved to a new school on the 24th day of the 2nd month of a common year. When his new teacher introduced him to the class,
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Answer:

Genes birthday is February 29th, or March 1st on a Leap Year

February has 29 days in a common year, so 24+7 is the 29th

February has 28 days in a Leap Year, so one less day would lead you to March 1st

7 0
3 years ago
During a sale, 20-cent candy bars were sold at 3 for 50 cents. How much is saved on 9 bars?
Mazyrski [523]

Answer:

Step-by-step explanation:

$0.30

Step-by-step explanation:

1 bar of candy = $0.20

3 bars of candy = $0.50

To solve, multiply for both:

If you pay for each candy bar individually, they each cost $0.20. Multiply 9 with 0.20:

9 x 0.20 = $1.80

If you pay for the candy bars by 3's, they cost $0.50 each pack. Divide 9 with 3, then multiply by 0.50:

9/3 = 3

3 x 0.50 = $1.50

Subtract the total cost of the individual from the pack:

$1.80 - $1.50 = $0.30

. $0.30 is your answer.

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3 years ago
Need answers <br> Chapter 3 test on big ideas math
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Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
2/3 divided by 11/15
NNADVOKAT [17]
You need to implement the process of "flip-flop" and multiply which is where you flip the second fraction and multiply.

\frac{2}{3}÷\frac{11}{15}⇒\frac{2}{3}×\frac{15}{11}

Now you multiply across. 2×15=30 and 3×11=33

So now it is \frac{30}{33}

-----------------------------------------------------------
To reduce to the lowest terms, find the GCF common factor

The GCF is 3

Divide both the numerator and denominator by 3

\frac{30}{33}÷\frac{3}{3}=\frac{10}{11}

Answer: \frac{10}{11}

7 0
3 years ago
Simplify the product 4x(2x^3-7x^2+x)
Andreyy89
8x^4-28x^3+4x^2
That’s the answer
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3 years ago
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