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boyakko [2]
2 years ago
14

Help please! math assignment

Mathematics
2 answers:
insens350 [35]2 years ago
5 0

Answer:

5, 10, 11

Step-by-step explanation:

You could actually solve this problem 2 ways. You could use the pythagorean theorem, if you could confirm it was a right triangle.

But since they give you the perimeter, that will be the easy way.

Perimeter means all the sides added together will be 26

(x) + (x+5) + (2x+1) = 26

Now combine like terms

4x + 6 = 26

Subtract 6 from both sides

4x = 20

Divide both sides by 4

x = 5

Now we can plug the x back in the find the length of each side

(5) = 5

(5) + 5 = 10

2(5) + 1 = 11

MArishka [77]2 years ago
4 0

Answer:

The left side   5

The bottom  10

The slanted side  11

Step-by-step explanation:

To find the perimeter of the triangle, add up the side lengths

x+ 2x+1 + x+5 = 26

Combine like terms

4x+6 = 26

Subtract 6

4x+6-6 =26-6

4x=20

Divide by 4

4x/4 = 20/4

x=4

The left side  x = 5

The bottom  x+5    = 5+5 = 10

The slanted side  = 2x+1 = 2*1 +1 = 10+1 =11

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Which graph represents the function of f(x) 9x^2 + 9x - 18 / 3x + 6
Irina-Kira [14]

Answer:

The graph in the attached figure

Step-by-step explanation:

we have

f(x)=\frac{9x^{2}+9x-18}{3x+6}

Remember that in a quotient, the denominator cannot be equal to zero

so

The value of x cannot be equal to x=-2

Simplify the expression

Using a graphing tool

The roots of the quadratic equation in the numerator are

x=-2 and x=1

so

9x^{2}+9x-18=9(x+2)(x-1)

Simplify the denominator

3x+6=3(x+2)

substitute in the original expression

f(x)=\frac{9(x+2)(x-1)}{3(x+2)}

Simplify

f(x)=3(x-1)

f(x)=3x-3

Is the equation of a line

The y-intercept is the point (0,-3) (value of the function when x is equal to zero)

The x-intercept is the point (1,0) (value of x when the value of the function is equal to zero)

Graph the line, but remember that the value of  x cannot be equal to -2

The graph in the attached figure

7 0
3 years ago
NEED HELP ASAP PLEASE
Ilya [14]

Answer:

see explanation

Step-by-step explanation:

Given

A = \frac{1}{2} bh

a. substitute b = 6 and h = 5 into the formula

A = \frac{1}{2} × 6 × 5 = \frac{1}{2} × 30 = 15 units²

b.

Multiply both sides of the formula by 2

2A = bh, that is

bh = 2A ← divide both sides by b

h = \frac{2A}{b} = \frac{2(16)}{4} = \frac{32}{4} = 8

c

Using

bh = 2A ← divide both sides by h

b = \frac{2A}{h} = \frac{2(12)}{4} = \frac{24}{4} = 6

3 0
3 years ago
dentify the vertical asymptotes of f(x) = quantity x plus 6 over quantity x squared minus 9x plus 18.
ser-zykov [4K]
So the function we're dealing with is

f(x) = \frac{x+6}{x^{2}-9x+18 }

Factorising we get, x^{2} -9x+18=0
(x-3)(x-6)=0

Therefore, the vertical asymptotes are at x = 3 and x = 6 
8 0
3 years ago
Which equation represents a nonproptional relationship
Luba_88 [7]
I need to see a picture
7 0
3 years ago
The battery standby duration (in hours) of a new model of cell phone is known to be normally distributed. Ten pieces of such new
Stells [14]

x = number of hours

want to find probability (P) x >= 13

x is N(14,1) transform to N(0,1) using z = (x - mean) / standard deviation so can look up probability using standard normal probability table.

P(x >= 13) = P( z > (13 - 14)/1) = P(z > -1) = 1 - P(z < -1) = 1 - 0.1587 = 0.8413

To convert that to percentage, multiply 100, to get 84.13%

3 0
3 years ago
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