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Sidana [21]
3 years ago
15

I NEED HELP FAST!!!! 15PTS

Mathematics
1 answer:
Vadim26 [7]3 years ago
7 0
3.option a (-8,2)

4.option b (5,4)
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Convert the function into intercept form. Show your work. y=-x^2+5x-36
Montano1993 [528]

{ - x}^{2} + 5x + 36 \\  { - x}^{2}  + 9x - 4x + 36 \\  - x \times (x - 9) - 4(x - 4) \\  \\ answer \:  \:  - ( x - 9) \times (x \times 4)
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3 years ago
-6×f (-3) -5×g(-7) =
polet [3.4K]

Answer:

=18fx+35gx

Step-by-step explanation:

I think.. Ask your teacher if it's right have a good day :)

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3 years ago
Work out b(4½-3⅔)+1⅔​
Zolol [24]

Answer:

2 \frac{1}{2}

Step-by-step explanation:

Change the mixed numbers to improper fractions

(\frac{9}{2} - \frac{11}{3} ) + \frac{5}{3} ← the LCM of 2 and 3 is 6

= \frac{9(3)}{2(3)} - \frac{11(2)}{3(2)} + \frac{5(2)}{3(2)}

= \frac{27}{6} - \frac{22}{6} + \frac{10}{6}

= \frac{5}{6} + \frac{10}{6}

= \frac{15}{6}

= \frac{5}{2}

= 2 \frac{1}{2}

6 0
3 years ago
A king cobra has a mass of 8.845 kilograms. Round the mass to the nearest tenth kilogram.
nevsk [136]

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Step-by-step explanation:

5 0
3 years ago
Write the quadratic function f(x) = x2 - 5x + 3 in vertex form. Complete the square to determine the maximum or minimum value of
enyata [817]

Answer:

a). Vertex form f the function f(x) = (x - 2.5)²+3.25

b). Maximum value of the function is (-3)

Step-by-step explanation:

a). f(x) = x² - 5x + 3

we have to write this function in the vertex form.

f(x) = x² - 2(2.5)x + 3

    = [(1)²x²- 2(2.5)x + (2.5)²-(2.5)²] + 3

    = (x - 2.5)²- 6.25 + 3

    = (x - 2.5)² - 3.25

So the vertex for of the function is

f(x) = (x - 2.5)² - 3.25

b). Given quadratic function f(x) = -x² - 6x + 6 is in the standard form of f(x) = ax² + bx + c.

By comparing the coefficients of both the functions,

a = -1, b = 6 and c = 6

Here the value of a is negative, therefore, the given parabola is opening downwards.

And the maximum will occur at

x=-\frac{b}{2a}

When we plug in the values,

x=-\frac{6}{2(-1)}

x = 3

Now to get the value of maximum of the function we will get the value of f(3).

f(3) = -(3)²- 6(3) + 6

f(3) = 9 - 18 + 6

f(3) = -3

Therefore, maximum value of the quadratic function is (-3).

4 0
3 years ago
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