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Sindrei [870]
3 years ago
10

Write the equation of the line that passes through the points (7,9) and (9, -3). Put your answer in fully reduced point-slope fo

rm, unless it is a vertical or horizontal line.
Mathematics
1 answer:
vagabundo [1.1K]3 years ago
6 0

Answer:

y - 9 = -6(x - 7)

Step-by-step explanation:

y2 - y1 / x2 - x1

-3 - 9 / /9 - 7

-12 / 2

= -6

y - 9 = -6(x - 7)

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NEED HELP RN PLZ!!!!!!!!!!!!!!!!!!!!!Complete the square to find the zeros of y=x^2+12x-5?
solmaris [256]

Answer: -6 +/- \sqrt{41} = x

<u>Step-by-step explanation:</u>

   y = x² + 12x - 5

<u>  +5 </u>   <u>              +5 </u>

y + 5 = x² + 12x              

<u> + 36  </u>  <u>            +36 </u>           <em>added (12 ÷ 2)² to both sides</em>

y + 41 = (x + 6)²

To find the zeros, let y = 0:

0 + 41 = (x + 6)²

\sqrt{41} = (\sqrt{x+6} )^{2}

+/-\sqrt{41} = x + 6

<u>-6            </u>     <u>   -6   </u>

-6 +/- \sqrt{41} = x



3 0
3 years ago
Joan gets $1,000 paycheck each month. She saves $50 from each paycheck. What percent of her paycheck does Joan save?
kirill [66]

Answer:

The percentage of paycheck Joan saves is 5%  .

Step-by-step explanation:

Given as :

The paycheck that Joan gets each months = x = $1,000

The money that Joan saves from each paycheck = y = $50

Let The percentage of paycheck Joan saves = z%

<u />

<u>Now, According to question</u>

The percentage of paycheck Joan saves = \dfrac{\textrm  money that Joan saves from each paycheck}{\textrm total paycheck money} × 100

Or, z = \dfrac{y}{x} × 100

Or, z = \dfrac{50}{1000} × 100

Or, z = 5%

So, The percentage of paycheck Joan saves = z = 5%

Hence,The percentage of paycheck Joan saves is 5%  . Answer

3 0
3 years ago
A packing box in the shape of a cube measures 8 inches on each side. How many cubic zirconia inches does the box hold?
AVprozaik [17]
The packing box has 32inche
3 0
3 years ago
________ is a fundamental difference between the t statistic and a z-score
chubhunter [2.5K]

Answer:

Step-by-step explanation:

- The Z-score allows you to decide if your sample is different from the population mean. In order to use z, you must know four things:

  • The population mean.
  • The population standard deviation.
  • The sample mean.
  • The sample size.

- Usually in stats, you don’t know anything about a population, so instead of a Z score you use a T-Test with a T Statistic.

- The major difference between using a Z score and a T statistic is that you have to estimate the population standard deviation. The T test is also used if you have a small sample size (less than 30).

6 0
3 years ago
Someone help me please ​
nirvana33 [79]

Answer:

426.9km^{2}

Step-by-step explanation:

Area of the shaded region→

A=\frac{1}{2}*40*27-\pi *6^{2}

→ 540-113.04

→426.9

---------

hope it helps..

have a great day!!!

8 0
2 years ago
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