Answer is 9.
-3x^2 + 243 = 0
Bring 243 to the right.
-3x^2 = -243
Divide by -3.
x^2 = 243/3 = 81
Tak the square root of both sides.
x = 81^1/2 = 9.
Answer: 7 1/2
Step-by-step explanation:
5 divided by 2/3 cups equals 7 1/2
Answer:
The answer to your question is:
12) C
13) AT = 29
Step-by-step explanation:
12)
Data
A (6, -3)
B (-6, 19)
midx = (x1 + x2) / 2 midy = (y1 ´y2) / 2
midx = ( 6 - 6) / 2 midy = (-3 + 19) / 2
midx = 0 / 2 midy = 16 / 2
midx = 0 midy = 8
mid point = (0, 8)
13)
As A is the midpoint of CT then CA = AT
2x - 19 = x + 5
2x - x = 19 + 5
x = 24
AT = 24 + 5
AT = 29
Answer:
The phenotypic ratio of the offspring will be 100% of purple flowers.
Step-by-step explanation:
Mendel's first law states that if two pure lines are crossed for a given character, the descendants of the first generation will all be equal to each other, phenotypically and genotypically, and phenotypically equal to one of the parents (of dominant genotype).
The Punnett square is a square diagram that is used to predict the genotypes of a particular cross or breeding experiment.
We represent the possibilities of hybridization using a Punnett square in the attached picture.
Uppercase letters represent dominant alleles and lowercase letters represent recessive alleles.
Homozygous individuals have the same pair of alleles. (AA, aa)
We can verify that all offspring have a dominant allele, therefore all offspring will have purple flowers.
we can use formula

where
fL is listener frequency
fs is siren frequency
va is the speed of sound in air
vs is police car speed
so, we have



now, we can change it into m/s


now, we can plug it

..............Answer