The zeroes (or 'roots') of a function occur when it crosses the x-axis, the line
y
=
0
. Let
x
2
−
25
=
0
. Rearranging
x
2
=
25
→
x
=
±
√
25
=
±
5
. The roots are
+
5
and
−
5
.
Answer:
- Total number = 30
- Number of females = 12
- Number of males = 18
a) <u>Combination of 5 out of 30:</u>
- 30C5 = 30!/[5!*(30 - 5)!] = 142506
b) <u>Combination of 2 males:</u>
- 18C2 = 18!/[2!*(18 - 2)!] = 153
<u>Combination of 3 females:</u>
- 12C3 = 12!/[3!*(12 - 3)!] = 220
<u>The number of ways with 2 males and 3 females:</u>
c) <u>Required probability is:</u>
- P(2 males and 3 females) = 33660 / 142506 = 0.236
Answer:
x = 3
Step-by-step explanation:
The midsegment is half the sum of the parallel bases, that is
= 13 ( multiply both sides by 2 to clear the fraction )
7x + 5 = 26 ( subtract 5 from both sides )
7x = 21 ( divide both sides by 7 )
x = 3
Answer:
Your number written in expanded form is:
0.8
+ 0.01
+ 0.007
Answer:
The measure of the length is
Step-by-step explanation:
Let
x-----> the length of rectangle
y-----> the width of rectangle
we know that
The perimeter of rectangle is equal to
so
Simplify
-----> equation A
----> equation B
Substitute equation B in equation A and solve for y
Find the value of x