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3 years ago

Factor the quadratic trinomial x^2-7x+12

Mathematics

1 answer:

tatuchka [14]3 years ago

6 0

Answer:

(x-4)(x-3) hope this helps

Step-by-step explanation:

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Which of the I-values are solutions to both of the following inequalities?

lidiya [134]

Answer:

Option (C)

Step-by-step explanation:

Given inequalities are,

81 > x and x > 68

Therefore, 81 > x > 68 is the inequality representing the solution area for x.

Out of x = 88, 85 and 80,

x = 80 will lie between the range of x = 68 and x = 81.

Therefore, Option (C) will be the correct option.

5 0

2 years ago

CLOUDISTHERO/cloudisthero here are your extra points so you'll answer my latest Question and if your not them do not answer or i

Finger [1]

Answer:

uh ok just give me the link to the question and I will see if I can help you :)

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers

In 2013, the Centers for Disease Control and Prevention surveyed 450,000 adults ages 18 and older and found that 79% of them do

belka [17]

Answer:

$Percent = 79\%$

Step-by-step explanation:

Given

$Adults = 450000$

$Rate = 79\%$ --- Those that do not get recommended amount of exercise

Required

The percentage that do not get the recommended amount of exercise

From the question, we have 79% to be the percentage of adults that do not get the recommended amount of exercise. This 79% represents the required percentage

Hence:

$Percent = 79\%$

6 0

3 years ago

Please help if you can pic attatched

MA_775_DIABLO [31]

Answer:

Step-by-step explanation:

$CI=\left[\begin{array}{ccc}1&6&0\\0&1&2\\1&-1&3\end{array}\right] \left[\begin{array}{ccc}1&0&0\\0&1&0\\0&0&1\end{array}\right]$

Subtract row 3 from row 1:

$\left[\begin{array}{ccc}1&6&0\\0&1&2\\0&7&-3\end{array}\right] \left[\begin{array}{ccc}1&0&0\\0&1&0\\1&0&-1\end{array}\right]$

Subtract row 3 from 7 times row 2:

$\left[\begin{array}{ccc}1&6&0\\0&1&2\\0&0&17\end{array}\right] \left[\begin{array}{ccc}1&0&0\\0&1&0\\-1&7&1\end{array}\right]$

Divide row 3 by 17:

$\left[\begin{array}{ccc}1&6&0\\0&1&2\\0&0&1\end{array}\right] \left[\begin{array}{ccc}1&0&0\\0&1&0\\\frac{-1}{17} &\frac{7}{17} &\frac{1}{17} \end{array}\right]$

Subtract 2 of row 3 from row 2:

$\left[\begin{array}{ccc}1&6&0\\0&1&0\\0&0&1\end{array}\right] \left[\begin{array}{ccc}1&0&0\\\frac{2}{17} &\frac{3}{17} &\frac{-2}{17} \\\frac{-1}{17} &\frac{7}{17} &\frac{1}{17} \end{array}\right]$

Subtract 6 of row 2 from row 1:

$\left[\begin{array}{ccc}1&0&0\\0&1&0\\0&0&1\end{array}\right] \left[\begin{array}{ccc}\frac{5}{17}&\frac{-18}{17}&\frac{12}{17}\\\frac{2}{17} &\frac{3}{17} &\frac{-2}{17} \\\frac{-1}{17} &\frac{7}{17} &\frac{1}{17} \end{array}\right]$

$C^{-1}=\frac{1}{17} \left[\begin{array}{ccc}5&-18&12\\2&3&-2\\-1&7&1\end{array}\right]$

$C^{-1}b=\frac{1}{17} \left[\begin{array}{ccc}5&-18&12\\2&3&-2\\-1&7&1\end{array}\right]\left[\begin{array}{c}10&1&3\end{array}\right]=\left[\begin{array}{c}4&1&0\end{array}\right]$

3 0

3 years ago

A car travels 30.75 miles in 2/3 of an hour. What is the average speed, in miles per hour, of the car?

Molodets [167]

The answer is 46 miles per hour

8 0

2 years ago