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3 years ago

Factor the trinomial below.9x^2+12x+4

Mathematics

2 answers:

Travka [436]3 years ago

7 0

Answer:

(3x+2)(3x+2)

Step-by-step explanation:

9x²+12x+4 Find two numbers that multiply to 9 and to other numbers that add to 4.

This numbers would be 3 and 2.

Since the 9 has an x², the 3 must be put with the x. Also the 2 must be positive because of all of the numbers being positive.

(3x+2)(3x+2)

If this answer is correct, please make me Brainliest!

stich3 [128]3 years ago

6 0

Answer:

9x^2+12x+4 = (3x+2)(3x+2)

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Answer:

Step-by-step explanation:

27/ 77 (Decimal: 0.350649)

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Read 2 more answers

Over the course of a month, Katniss caught three times as many squirrels as deer. She also caught five less rabbits than squirre

natta225 [31]

Answer:

10 rabbits

Step-by-step explanation:

Let us represent

Number of rabbits = x

Number of squirrels = y

Number of deer = z

Katniss caught three times as many squirrels as deer.

y = 3z

She also caught five less rabbits than squirrels.

y = x - 5

The total number of animals she caught is ten more than four times the number of deer caught.

x + y + z = 4 × z + 10

x + y + z = 4z + 10

How many rabbits did Katniss catch?

Number of rabbits = x

We make x subject of the formula

x + y + z = 4z + 10

x = 4z + 10 - y - z

y = 3z

x = 4z + 10 - 3z - z

x = 4z - z - 3z + 10

x = 4z - 4z + 10

x = 0 + 10

x = 10

Therefore, the number of rabbits Katniss caught is 10 rabbits

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3 years ago

Alex sells cars at Keith Palmer Ford. He earn$400 a week plus $150 per car he sells. if he earn $1450 last week, how many cars d

maxonik [38]

1450-400=1050
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3 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

Genotype No. of Individuals No. of Allele B No. of Allele b

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.

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3 years ago