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Pie
3 years ago
7

Question 7 (4 points) Use a trig ratio to determine x. x= Round to the nearest tenth. 70

Mathematics
1 answer:
nataly862011 [7]3 years ago
5 0
the nearest tenth would be 100
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Write x2 - 2x + 5 = 0 in vertex form. (Be sure to write your response in the form a(x-h)^2+k=0 with no spaces!)
Drupady [299]
To write the given quadratic equation to its vertex form, we first form a perfect square.
 
                x² - 2x + 5 = 0
Transpose the constant to other side of the equation,
                x² - 2x = -5
Complete the square in the left side of the equation,
              x² - 2x + (-2/1(2))² = -5 + (-2/1(2))² 
Performed the operation,
                x² - 2x + 1 = -5 + 1
Factor the left side of the equation,
               (x - 1)² = -4

Thus, the vertex form of the equation is,
          <em>  (x-1)² + 4 = 0</em>
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3 years ago
Can someone please please PLEASEEE. Help me on this one
Furkat [3]

Answer:

256 total

Step-by-step explanation:

112 boys

144 girls

3 0
3 years ago
Find the constant rate of change for each linear function and interpret its meaning
Marina CMI [18]

the slope goes by several names

• average rate of change

• rate of change

• deltaY over deltaX

• Δy over Δx

• rise over run

• gradient

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however, is the same cat wearing different costumes.

and to get it, we simply need two points off of the straight line, hmm let's use the ones in the picture below.

(\stackrel{x_1}{2}~,~\stackrel{y_1}{4})\qquad (\stackrel{x_2}{6}~,~\stackrel{y_2}{6}) ~\hfill \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{6}-\stackrel{y1}{4}}}{\underset{run} {\underset{x_2}{6}-\underset{x_1}{2}}}\implies \cfrac{2}{4}\implies \cfrac{1}{2}

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2 years ago
Determine which tranlations would map Figure J onto Figure K
ella [17]

A translation right 5 units and up 4 units.

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11 months ago
What is 9x+7y=-18 using substitution
wlad13 [49]

7y=-9x-18

that is all I can do

4 0
3 years ago
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