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dezoksy [38]
3 years ago
14

How do I do 9 and 10? If you can, write the steps too please and thanks

Mathematics
1 answer:
Alona [7]3 years ago
7 0
Y = 3x^2 + 6x -2
y = 3(x^2 + 2x ) - 2    complete the square on the x^2 + 2x.
y = 3(x^2 + 2x + 1) -2-3
y = 3(x+1)^2 -5        vertex is (-1, -5); AOS is x = -1; opens upward

y = x^2 + 9x + (81/4) this will factor
y = (x + 9/2)^2          vertex is (-9/2, 0); AOS is x = -9/2; opens upward
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Help meeeeeeeeeeeeeee pls
WITCHER [35]

Answer:

Area = 15.36 ft

Step-by-step explanation:

First find the area of the dotted line triangle using the formula: base x height x 1/2, which would be 1.2ft x 12.8 x 1/2 = 7.68ft.

Next, add another triangle at the top, mirroring the shown triangle, of the parallelogram.

Then, find the area of the shape as though it were a rectangle. (base x height) - 2.4 x 12.8 = 30.72.

Next, multiply the area of the invisible triangle by 2, 7.68 x 2 = 15.36ft

and Finally, subtract the area of the rectangle shape of the the sum of the two invisible triangles, 30.72 - 15.36 = 15.36ft

The area of the parallelogram is 15.36 ft.

5 0
3 years ago
Can you help me please??
dusya [7]

Answer:

y = \frac{4}{5}x+\frac{54}{5}

Step-by-step explanation:

Equation of a line has been given as,

y=\frac{4}{5}x+\frac{3}{5}

Here, slope of the line = \frac{4}{5}

y-intercept = \frac{3}{5}

"If the two lines are parallel, there slopes will be equal"

By this property slope of the parallel line to the given line will be equal.

Therefore, slope 'm' = \frac{4}{5}

Since, slope intercept form of a line is,

y = mx + b

Therefore, equation of the parallel line will be,

y = \frac{4}{5}x+b

Since, this line passes through a point (-6, 6),

6 = \frac{4}{5}(-6)+b

6 = -\frac{24}{5}+b

b = 6+\frac{24}{5}

b = \frac{30+24}{5}

b = \frac{54}{5}

Equation of the parallel line will be,

y = \frac{4}{5}x+\frac{54}{5}

4 0
3 years ago
Write 4.63 x 10^-3 in standard notation
Ierofanga [76]

Hello!

4.63 x 10^-3 = 0,00463

8 0
2 years ago
Need Heelppp on this question..
konstantin123 [22]

A. Put parenthesis around 12-3. This will reduce the amount you are dividing 6*5 by and give you the highest possible answer.

B. Put parenthesis around 3+4. This will simplify into 7*7, giving you the correct answer, 49.

Hope this helps!

4 0
3 years ago
|(-10)+25)|=<br> PLZZ HELP AND THANK YOU!!!&lt;3
NNADVOKAT [17]
-15 because there is ten before 25
6 0
2 years ago
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