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Aliun [14]
2 years ago
15

What is a prime number

Mathematics
2 answers:
kolezko [41]2 years ago
6 0

A prime number is a number that can only be divided by 1 by itself

UkoKoshka [18]2 years ago
5 0

Answer:

A prime number is any number that cant be divide by any number but 1 (Ex. 1 2 3 5; Non-Ex. 4 6 8)

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Challenger Elementary School has 8 0 0 800800 students. Every Wednesday, 1 2 % 12%12, percent of the students stay after school
Juliette [100K]
You need to calculate 12% of 800.

To find a percent of a number, multiply the percent by the number.
Change the percent into a decimal by dividing the percent by 100 (move the decimal point of the percent two places to the left.)

12% of 800 =

= 12% * 800

= 0.12 * 800

= 96

Answer: 96 students
6 0
3 years ago
Brenda throws a dart at this square-shaped target: Part A: Is the probability of hitting the black circle inside the target clos
Masteriza [31]
Either way.  The probability of hitting the circle is:

P(C)=Area of circle divided by area of square

P(W)=(area of square minus area of circle divided by area of square

P(C)=(πr^2)/s^2

P(W)=(s^2-πr^2)/s^2

...

Okay with know dimensions, r=1 (because r=d/2 and d=2 so r=1), s=11 we have:

P(inside circle)=π/121  (≈0.0259  or 2.6%)

P(outside circel)=(121-π)/121  (≈0.9744 or 97.4%)
6 0
3 years ago
1. x=1/(root3-root2). find rootx-(1/rootx) 2. if x=[root(a+2b)+root(a-2b)]/[root(a+2b)-root(a-2b]. show that bx^2-ax+b=0
timofeeve [1]
1. x = 1/ ( \sqrt{3} -  \sqrt{2)} = \sqrt{3}+  \sqrt{2};
 ( \sqrt{x} -1/ \sqrt{x} )^{2} = x + 1/x - 2 = = 
6 0
3 years ago
Read 2 more answers
-2log5 7x=2<br><br> the 5 is small please help me
RSB [31]
-2log_5 7x = log_5 2

log_5[1/(7x)^2] = log_5 2

log_5(1/49x^2) = log_5 2

log_5(1 - 49x^2) = log_5 2

1 - 49x^2 = 2

You finish.

3 0
2 years ago
Help ASAP ! Taking A Test Right Now
Tems11 [23]

Answer:

There is a group anxiously waiting to start their triathlon. They are in the sand getting ready for the first leg of the race…the swim!  They have roped off a rectangle of the beach that is 200 yards long and 10 yards wide.  The athletes are packed in trying fighting for the front. If we assume that 10 athletes can occupy 25 square feet, how many triathletes are?

10 yds x 200 yds = 2000 sq yds.

2000 x 9 = 18000 sq ft

18000/25 = 720 sections that are 25 sq ft

720 sections x 10 people/section = 7200 triathletes

Step-by-step explanation:

5 0
2 years ago
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