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
.
<h3><u>
Answer:</u></h3>
<em>Hence, the probability is:</em>
<h3><u>
Step-by-step explanation:</u></h3>
Each of four friends orders a sweatshirt from a catalog.
There are 15 colors of sweatshirts, 5 of which are all cotton and 10 of which are a blend.
We have to find the probability that the friend order only cotton sweatshirt:
As there are 5 cotton shirts out of which four are to be selected from a total of 15 coloured shirts.
Now we know that a probability is defined as:
Probability=( Number of favourable outcomes)/(Total number of outcomes)/( Total number of outcomes)
So, the probability is:
Hence, the probability is:
Answer:
it is 6
Step-by-step explanation:
Answer:
14 cm
Step-by-step explanation: