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Irina-Kira [14]
3 years ago
7

Find the number that should be added to the expression to make it a perfect square. k^2-5k

Mathematics
1 answer:
yuradex [85]3 years ago
6 0
(K-5/2)^2-25/4 is your answer
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What is 100% of £70?
Margarita [4]

Answer:70

Step-by-step explanation:

5 0
3 years ago
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Four of a sample of 150 computers will be selected and tested. How many ways are there to make this selection? Type a
OleMash [197]

Answer:

20260275

Step-by-step explanation:

the question is same as selecting 4 things from 150 things

= C(150,4). (nCr formula)

=[150×149×148×147]÷[4×3×2×1]

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= 20260275

6 0
4 years ago
Assume that a population of 50 individuals has the following numbers of genotypes for a gene with two alleles, B and b: BB = 30,
Andreas93 [3]

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 :\frac{\text{number of B alleles}}{\text{total number of alleles}}

:\frac{70}{100}

:0.7

The frequency of allele b :\frac{\text{number of b alleles}}{\text{total number of alleles}}

:\frac{30}{100}

:0.3

Hence the frequency of allele B is 0.7 and allele b is 0.3 in population’s gene pool.

6 0
3 years ago
Compute the number of vinyl tiles, measuring 8 in. each side, needed to tile a kitchen measuring 24 ft. by 18 ft.
zepelin [54]
972. Keep in mind the ratio of square feet to square inches is 144:1 as opposed to 12:1
4 0
3 years ago
Read 2 more answers
I need Help with this TRIG question
strojnjashka [21]
                                x 
  (15) sin 30.5   = ------  (15)
                               15

(15) sin 30.5 = x 
Plug this part into a calculator.

7.61 = x 


Area of a triangle: 1/2bh 

1/2 (7.61)(13)
3.805(13)
49.469

49.47 un² is your final answer since you are supposed to round to the tenths place. I hope this helps.






                       

3 0
3 years ago
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