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shutvik [7]
3 years ago
14

THESE MEAN PEOPLE REALLY BE TROLLING WITH MY GRADES BRUHLET REALLY REPORT CARDS ARE TODAYI NEED HELP. plzzzzz its my last questi

on
A student solved the problem below as part of her homework. Review her work and check for any mistakes. For each line in her work, explain what she did to get her next step.



QUESTIONS TO ANSWER:
A. Explain Mistakes Made



B. Correct Work and Answer



(FIRST IMAGE IS THE QUESTION)

(SECOND IMAGE IS THE STUDENT WORK)

Mathematics
2 answers:
KengaRu [80]3 years ago
7 0

Answer:

There are no problems??

Step-by-step explanation:

There aren't any problems with the students work. First she used the distributive property to get the first line, then she moved like terms together, then she simplified. There's no problems as far as I can tell

Bess [88]3 years ago
6 0
B correct answer becuase you said it
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OAA', OBB', and OCC' are straight lines. Triangle ABC is mapped onto Triangle A'B'C' by an enlargement with center O. What is th
bazaltina [42]

Answer:

(D) 2

Step-by-step explanation:

The scale factor of the enlargement of ΔABC to ΔA'B'C' is given by the ratio of the length of the corresponding sides of ΔA'B'C' and ΔABC

Therefore, we have;

The \ scale \ factor = \dfrac{Length \ of \overline  {B'C'}}{Length \ of \overline {BC}} =  \dfrac{Length \ of \overline  {A'C'}}{Length \ of \overline {AC}} =  \dfrac{Length \ of \overline  {A'B'}}{Length \ of \overline {AB}}

\dfrac{Length \ of \overline  {B'C'}}{Length \ of \overline {BC}} =  \dfrac{2 \ units}{1 \ unit} = 2

\dfrac{Length \ of \overline  {A'C'}}{Length \ of \overline {AC}} =  \dfrac{4 \ units}{2 \ units} = 2

\dfrac{Length \ of \overline  {A'B'}}{Length \ of \overline {AB}} =  \dfrac{2 \cdot \sqrt{5}  \ units}{\sqrt{5}  \ units} = 2

Therefore, the scale factor = 2

6 0
3 years ago
Mia is 6.96672 × 106 minutes old. Convert her age to more appropriate units using years, months, and days. Assume a year has 365
oksian1 [2.3K]

Answer:

it would be 609.47

Step-by-step explanation:

7 0
3 years ago
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The driving distance for the top 100 golfers on the PGA tour is between 284.7 and 310.6 yards (according to GolfWeek). Assume th
Usimov [2.4K]

Answer:

a) f(x) = \frac{1}{25.9}

b) 0.2046 = 20.46% probability the driving distance for one of these golfers is less than 290 yards

Step-by-step explanation:

Uniform probability distribution:

An uniform distribution has two bounds, a and b.

The probability of finding a value of at lower than x is:

P(X < x) = \frac{x - a}{b - a}

The probability of finding a value between c and d is:

P(c \leq X \leq d) = \frac{d - c}{b - a}

The probability of finding a value above x is:

P(X > x) = \frac{b - x}{b - a}

The probability density function of the uniform distribution is:

f(x) = \frac{1}{b-a}

The driving distance for the top 100 golfers on the PGA tour is between 284.7 and 310.6 yards.

This means that a = 284.7, b = 310.6.

a. Give a mathematical expression for the probability density function of driving distance.

f(x) = \frac{1}{b-a} = \frac{1}{310.6-284.7} = \frac{1}{25.9}

b. What is the probability the driving distance for one of these golfers is less than 290 yards?

P(X < 290) = \frac{290 - 284.7}{310.6-284.7} = 0.2046

0.2046 = 20.46% probability the driving distance for one of these golfers is less than 290 yards

3 0
2 years ago
How many 1/4 pound hamburgers can you make from 3 1/2 pound of ground beef ​
Anna71 [15]

Answer:

14

Step-by-step explanation:

Divide 3 1/2 into 1/4

5 0
3 years ago
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Help me plzzzzzzzzzzzzzzzz
Ksju [112]
B because it’s in the middle
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