Answer:
2nd degree
Step-by-step explanation:
He answer is Positive 60 or 60+
Answer:
Step-by-step explanation:

<u>Question 7:
Define x :
</u>
Let the digit in the ones place be x.
The digit in the tens place is x+2.
The sum of the digit and its reverse is 66
<u>Find x:</u>
10(x + 2) + x + 10x + (x + 2) = 66
10x + 20 + x + 10x + x + 2 = 66
22x + 22 = 66
22x = 44
x = 2
<u>Find the number:</u>
The number in the ones place = x= 2
The number in the tens place = x = 2 + 2 = 4
Answer : The number is 42.
<u>Question 8:</u>
<u>Define x:</u>
Let the digit in the tens place be x.
The digit in the ones place is x+7.
The number = 10x + x + 7 = 11x + 7
If the digit interchange,
the number = 10(x + 7) + x = 10x + 70 + x = 11x + 70
<u>Find x:
</u>
9(11x + 7) = 2(11x + 70)
99x + 63 = 22x + 140
99x - 22x = 140 - 63
77x = 77
x = 1
<u>Find the number:
</u>
x = 1
x + 7 = 1 + 7 = 8
So the number is 18
Answer: The number is 18.
Answer:
the frequency of allele B is 0.7 and allele b is 0.3 in population’s gene pool.
Step-by-step explanation:
Allele frequency is how often an allele occurs in a gene pool relative to the other alleles for that gene
<u>Genotype</u> <u> No. of Individuals</u><u> </u> <u>No. of Allele </u><u>B</u> <u>No. of Allele</u><u> b </u>
BB 30 30*2 =60 30*0 =0
Bb 10 10*1 =10 10*1=10
bb 10 10 *0 =0 10*2=20
Total 50 70 30
Total no. of alleles = 70+30 =100
The frequency of allele B :
:
:
The frequency of allele b :
:
:
Hence the frequency of allele B is 0.7 and allele b is 0.3 in population’s gene pool.