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Dennis_Churaev [7]
3 years ago
11

Solve the system of equations. 10x + y= − 20 y = 2 x^2 − 4x − 16

Mathematics
1 answer:
Alenkasestr [34]3 years ago
5 0
A graphing calculator shows two solutions:
  (x, y) = (-2, 0) or (-1, -10)

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Consider the Graph Choose True or False for each statement.
lakkis [162]

Answer:

True, False, False, True

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3 years ago
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Let f(x)=3x^2-x+2 and g(x)= 5x^2-1. find f(g(x))
LenKa [72]
F (5x^2 - 1) = 75x^4 - 35x^2 + 6
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3 years ago
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H(x)=2x;find h(7) please help​
bearhunter [10]
2? bc if x=7 then it equals 2(7) which is 14 sooo i believe either 7 or 2
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3 years ago
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5. The scale of a map says that 8 cm represents 5 km.
sleet_krkn [62]

Answer:

a. 12.8 cm    b. 3.125

Step-by-step explanation:

To find any scale drawing use a proportion with one unit of values on the top and the other on the bottom. For example 8cm/5km = x/8km. So you would multiply 8 cm and 8 km and then divide by 5 to get 12.8 cm. For the second question plug in 5m in the numerator and solve for its denominator.

3 0
2 years ago
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18. Brown eyes (B) are dominant to blue eyes (b). The presence of freckles (F) is dominant to the absence of freckles (f). What
MrRissso [65]

Answer:

For bbff we have only 6.3% probability

Step-by-step explanation:

If the parents are heterozygous for both traits, them they are represented by:

BbFf × BbFf

Parent 1: BbFf

Parent 2: BbFf

We have to find the percentage of occurence of bb × ff, which is a child that has blue eyes and no freckles, with no dominant factor.

By distributing the possibilities in a Punnett square, <em>vide</em> picture. We have the following possibilities:

Genotype   Count     Percent  

bBfF  4     25

BBfF  2     12.5

bBFF  2     12.5

bBff          2     12.5

bbfF  2     12.5

BBFF  1     6.3

BBff      1            6.3

bbFF  1     6.3

bbff      1     6.3

For bbff we have only 6.3% probability

6 0
3 years ago
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