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Vinvika [58]
2 years ago
13

Represent the following sentence as an algebraic expression, where "a number" is the

Mathematics
2 answers:
r-ruslan [8.4K]2 years ago
6 0

Answer:

2x where 2 is a number and x is a variable

Firlakuza [10]2 years ago
4 0

Answer:

2x where 2 is a number and x is a variable

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Expanding brackets (x + 3)(x + 10)
Katarina [22]

Answer:

x² + 13x + 30

Step-by-step explanation:

(x + 3) (x + 10)

Expand the brackets.

x(x + 10) + 3(x + 10)

x² + 10x + 3x + 30

Add like terms.

x² + 13x + 30

6 0
3 years ago
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The graph of the function is symmetric with respect to the origin. f(x)=(1/5x)-x^19. T or F
ArbitrLikvidat [17]

Answer: True

Step-by-step explanation:

I already took this part of the quiz and this was the right answer

3 0
3 years ago
Evaluate the given expression 9P6
iogann1982 [59]

Answer:

60480

Step-by-step explanation:

nPr=\frac{n!}{\left(n-r\right)!}\\\\nPr=\frac{9!}{\left(9-6\right)!}=nPr=\frac{9!}{\left3\right!}=\frac{9*8*7*6*5*4*3*2*1}{3*2*1}=60480

8 0
3 years ago
Will a 9m long planks fit into a square room of side 7m? please I really needed help with this one
Darya [45]
No because if it is a square all the sides are 7m long so a 9m plank will not fit. Hope this helps.
5 0
3 years ago
If f(x) = –x2 + 3x + 5 and g(x) = x2 + 2x, which graph shows the graph of (f + g)(x)? On a coordinate plane, a straight line wit
Mamont248 [21]

The graph of (f+g)(x) is on the coordinate plane, a straight line with a positive slope crosses the x-axis at (negative 1, 0) and crosses the y-axis at (0, 5).

<h3>What is the graph of a parabolic equation?</h3>

The graph of a parabolic equation is a curved U-shape graph from where the domain, the range, x-intercept(s), and the y-intercept(s) can be determined.

Given that:

f(x) = -x² + 3x + 5

g(x) = x² + 2x

To find (f + g)(x), we have:

(f + g)(x) = (-x² + 3x + 5)+(x² + 2x)

(f + g)(x) = -x² + 3x + 5 +x² + 2x

(f + g)(x) = 3x + 2x + 5

(f + g)(x) = 5x + 5

Use the Slope-intercept form: We are to find the graph of y = 5x + 5

y = 5x + 5

Here:

  • Slope = 5
  • x-intercept = (-1, 0)
  • y-intercept = (0,5)

Therefore, we can conclude that on the coordinate plane, a straight line with a positive slope crosses the x-axis at (negative 1, 0) and crosses the y-axis at (0, 5)

Learn more about parabolic equation here:

brainly.com/question/4061870

#SPJ1

4 0
2 years ago
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