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Kazeer [188]
3 years ago
13

Please Help  Me With These QUESTIONS!!!!!!! I Give Thanks!!!!!!!

Mathematics
1 answer:
Bezzdna [24]3 years ago
8 0

1).  Total cost for a rental = $12 just to talk to them +  $8 per hour .

                     $44              =  12        + 8 (number of hours)

                       32              =                  8 (number of hours.
____________________

2).  333 = 6 x (number of students on each bus) + 9 mores students

       324 = 6 x (number of students on each bus) .
______________________________

3).  If all 3 numbers were the same number,
then each one would be  1/3 of 138.  That's 46 .

Take 1 away from one of the 46s and add it on to another 46 .
Their sum is still 138, but now you have 3 consecutive numbers.
________________________________

4).   $150 = cost of 6 books  +  $12 left over.

        $138 = cost of 6 books.
_________________________________

5).  If all three numbers were the same number,
then each of them would be  1/3 of 84.  That's  28.

Take 2 away from one of the 28s, and add it onto another one.  
Their sum is still 84, but now you have 3 consecutive even numbers.
_________________________________

6).  Keith has 45 cards today.
      This morning, before his dog ate any of them, he had 90.
       That was after he bought 6 new ones.
___________________________________

7).  Sandy has 14 comic books.
      Before she bought 6 new ones, she had 8 .
      That's the half she had left after she sold half of them.        
___________________________________

8).  Sally has $11 now.
       Before she earned $9 washing the car, she had $20 .
       That's the half she had left after she spent half at the movies.           
____________________________________

9).  Fred spent $31 for a soft drink and 7 candy bars.
      $3 of that was for the drink, so the 7 candy bars cost $28 .
_____________________________________

10). If all three numbers were the same number, then
each one would be  1/3 of 105.   That's  35 .
                  
Take 2 away from one of the 35s and
add it onto another one.

They still all add up to 105, but now you have
three consecutive odd numbers.

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In the flowering plant, white flowers (B) are dominant over red flowers (b), and short plants (E) are dominant over tall flower
lutik1710 [3]

<u>Question Completion</u>

(a)What is your null hypothesis?

(b)What is your expected phenotypic ratio based on Mendelian inheritance?

(c)Calculate the expected number of flowers you should have gotten based on the Mendelian inheritance. Then calculate a chi-square value, degrees of freedom, and a p-value.

  • Chi-square statistic: _____
  • Degrees of freedom (# phenotypes -1):
  • P-value:

(d)Interpret your results. Do you reject it or fail to reject your null hypothesis (please restate the null)?

Answer:

(a)H_0:$The given data fit the predicted phenotype

(b)9:3:3:1

(c)

  • Chi-square statistic: 3.8914
  • Degrees of freedom (# phenotypes -1) =3
  • P-value:  0.2734

(d)We fail to reject the null hypothesis.

Step-by-step explanation:

In the flowering plant, white flowers (B) are dominant over red flowers (b), and short plants (E) are dominant over tall flowers (e). An F2 generation was created by crossing two F1 individuals (each BbEe).

(a)The null hypothesis is:

H_0:$The given data fit the predicted phenotype

(b)The gametes are BE, Be, bE and be.

The offsprings are presented in the table below:

\left|\begin{array}{c|cccc}&BE&Be&bE&be\\--&--&--&--&--\\BE&BE&BE&BE&BE\\Be&BE&Be&BE&Be\\bE&BE&BE&bE&bE\\be&BE&Be&bE&be\end{array}\right|

The expected phenotypic ratio based on Mendelian inheritance

BE:Be:bE:be=9:3:3:1

(c)

\left|\begin{array}{c|c|c|c|c|c}$Phenotype&Observed&$Expected&O-E&(O-E)^2&\dfrac{(O-E)^2}{E} \\-----&--&--&--&--&--\\$White short(BE)&206&\frac{9}{16}*404 \approx 227 &-21&441&1.9427\\$Red, short(bE)&83&\frac{3}{16}*404 \approx 78 &5&25&0.3205\\$White, tall(Be)&85&\frac{3}{16}*404 \approx 78 &7&49&0.6282\\$Red, tall(be)&30&\frac{1}{16}*404 \approx 25 &5&25&1\\-----&--&--&--&--&--\\$Total&404&--&--&--&3.8914\end{array}\right|

Therefore:

  • Chi-square statistic: 3.8914
  • Degrees of freedom (# phenotypes -1):  4-1 =3
  • P-value:  0.2734

(d) Our null hypothesis is:

H_0:$The given data fit the predicted phenotype

Since p>0.05, the given data fit the predicted phenotypic ratio.

We, therefore, fail to reject the null hypothesis.

The difference in the observed and expected are sosmall that they can be attributed to random chance.

8 0
3 years ago
Help help help help help
o-na [289]

Answer:

50 degrees

Step-by-step explanation:

A whole line is 180 degrees.Subtract the known angle from 180 to find the missing angle,which is 50 degrees.

6 0
3 years ago
A father and his son decide to sum their age. The sum is equal to sixty years. Six years ago, the age of the father was five tim
arlik [135]

Answer:

20

Step-by-step explanation:

To solve this you have to make a system of equations.

Since the father and son's age sum up to 60, the first equation will be:

f + s = 60

Secondly, since the father's age is 5 times the age of the son 6 years ago the equation will be:

6 - (5s) = f

Now, you have to solve the first equation to let it equal to s

f + s = 60

f = 60 - s

Plug in

6 - 5s = 60 - s

     +s          +s

6 - 4s = 60

-6         -6

---------------------

-4s = 54

-----   -----

 -4     -4

   s ≅ 14

14 + 6 = 20

5 0
1 year ago
Read 2 more answers
What is -13m+46&gt;-45 i really need help on it
marshall27 [118]

Answer:

Inequality form: m<7

Interval notation: (-infinity sign, 7)

Step-by-step explanation:

8 0
3 years ago
Whats 87 + 72 tenths
Alchen [17]

Answer:

94.2

Step-by-step explanation:

google and simple addition

8 0
3 years ago
Read 2 more answers
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