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il63 [147K]
4 years ago
7

(x+9)(x+2) expand and simplify

Mathematics
2 answers:
klio [65]4 years ago
6 0

We are given the following expression and want to expand it and simplify it.

(x+9)(x+2)

Use the FOIL method for expanding

=x^2+9x+2x+(9\times2)

Simplify

=x^2+11x+18

Let me know if you have any questions or need clarifications, thanks!

~ Padoru

sineoko [7]4 years ago
6 0

Answer:

x^2+11x+18

Step-by-step explanation:

You should expand and simplify the question,

(x.x)+(x.2)+(9.x)+(9.2) =

= x^2+2x+9x+18

= x^2 + 11x+18

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iVinArrow [24]

The statement that are true about the function and its graph is "The graph of the function is a parabola " , the correct option is (b) .

In the question ,

it is given that ,

the quadratic function is f(x) = x² – 5x + 12 .

for x = -10 ,

f(-10) = (-10)² – 5(-10) + 12

= 100 + 50 + 12

= 162

option(a) is false .

the graph of the quadratic function is shown below .

form the graph we can see that the graph is a parabola ,

and the function opens upwards ,

the graph does not contain the points (20,-8) and (0,0)

Therefore , The statement that are true about the function and its graph is "The graph of the function is a parabola " , the correct option is (b) .

The given question is incomplete , the complete question is

Consider the quadratic function f(x) = x² – 5x + 12. Which statement is true about the function and its graph?

(a) The value of f(–10) = 82

(b) The graph of the function is a parabola.

(c) The graph of the function opens down.

(d) The graph contains the point (20, –8).

(e) The graph contains the point (0, 0).

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8 0
1 year ago
If h = 13 units and r = 6 units, then what is the volume of the cone shown above?
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V=(1/3)(13)(3.14)(6^2)
V=(1/3)(13)(3.14)(36)
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3 years ago
Expand
Artyom0805 [142]

The distance between the ships is 26.65.

<h3>How to illustrate the distance?</h3>

Based on the information given, after 3 hours, the distance of ship B will be:

= 20 + (17 × 3)

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A = 21 × 3 = 63

Well calculate the square root which will be:

A² + B² = 71² + 63²

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Therefore, ✓9010 = 94.92

Finally, the distance will be:

= (63 × 21) + (71 × 17) / 94.92

= (1323 + 1207)/94.92

= 26.65

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