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Marizza181 [45]
3 years ago
10

Human skin color varies widely around the world, and children do not always exhibit the exact same coloring as their parents. Ba

sed on this information, what is true about human skin color? is it A.
Skin color is not a genetic trait. or B.
A single pair of alleles controls this trait.C.
It’s an example of incomplete dominance.D.
It’s an example of polygenic inheritance.
SAT
1 answer:
Phantasy [73]3 years ago
7 0

Answer:

Probably C, as recessive traits will not appear in phenotype, but two recessives show that phenotype.

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3 years ago
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Complete the square:36x=-4x^2-50
bija089 [108]

Answer:

The Answer is the following :

Explanation:

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3 years ago
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*SAT QUESTION*
denis23 [38]

Answer and Explanation:

Greetings!

Let's~answer~your~question!

Triangle~ ABC ~is ~a ~right~ triangle~ with ~its~ right~ angle ~at ~B. ~Therefore,~AC\\is~ the~ hypotenuse~ of~ right~ triangle~ ABC,~ and~ AB ~and ~BC ~are~ the~ legs~ of~ right~\\ triangle ~ABC.

According~ to~ the~ Pythagorean ~theorem,

AB=\sqrt{20^2-16^2}=\sqrt{400-256}=\sqrt{144}=12

Since ~triangle~DEF~is ~similar~ to~ triangle~ ABC,~ with~ vertex ~F ~corresponding~to~ vertex~ C,~ the~ measure\\ of~angle~ \angle F~equals~ the~ measure~ of~ angle~\angle C.

Therefore,~ sinF=sinC. ~From ~the~ side~ lengths~ of ~triangle~ ABC,

sinF=\frac{opposite ~side}{hypotenuse} =\frac{AB}{AC} =\frac{12}{20}=\frac{3}{5}

Therfore, ~sinF=\frac{3}{5}~or~0.6

3 0
3 years ago
Read 2 more answers
Lydia graphed δlmn at the coordinates l (0, 0), m (2, 2), and n (2, −1). She thinks δlmn is a right triangle. Is lydia's asserti
nadya68 [22]

No product results in -1, hence δlmn is NOT a right triangle showing that  lydia's assertion is incorrect

<h3>Perpendicular lines</h3>

In order to determine whether triangle lmn  is right-angled, we need to determine the slope of lm, ln, and mn first as shown:

For the slope of lm:

m_{lm} = \frac{2-0}{2-0}\\ m_{lm} =2/2\\m_{lm} =1

For the slope of ln:

m_{ln} = \frac{-1-0}{2-0}\\m_{ln} =-1/2\\

For the slope of mn:

m_{mn} = \frac{-1-2}{2-2}\\m_{ln} =-3/0 = \infty\\

  • If any of the two lines is perpendicular, hence the triangle lmn is right-angled.

  • To check, we will take the product of the slopes and see if it is equivalent to -1.

Product of slope lm and ln

m_{lm}\times m_{ln} = 1 \times -1/2\\m_{lm}\times m_{ln} = -1/2

Since no product results in -1, hence δlmn is NOT a right triangle showing that  Lydia's assertion is incorrect

Learn more on slopes here: brainly.com/question/3493733

8 0
2 years ago
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In ΔBCD, the measure of ∠D=90°, CB = 73, BD = 55, and DC = 48. What ratio represents the cosine of ∠C?
PIT_PIT [208]

Answer: 48 over 73

Explanation: I had this exact question and didint know the asnwer and after I got it wrong the test gave me the answer

4 0
3 years ago
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