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3 years ago

Simplify the Expression

Mathematics

2 answers:

ivann1987 [24]3 years ago

8 0

Answer:

11x+7

Step-by-step explanation:

This is because, in order to simplify, first you need to distribute the 2 into the x+5. So, you get 2x+10. Then you get 9x-3+2x+10. The 9x and 2x combine to get 11x. The -3+10 combine to get 7. So you have 11x+7.

Finger [1]3 years ago

4 0

Answer:

x=-5

Step-by-step explanation:

0 + 3x = 0 + -15

3x = 0 + -15

3x=-15

Then, x=-5.

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Rewrite x^2+12x+42 in the form (x+b)^2 +c

Rzqust [24]

This is completing the square:

(x^2+12x+36)+42-36

Answer: (x+6)^2 +6

6 0

3 years ago

Solve for z<br> -p(d+z) = -2z+59−p(d+z)=−2z+59

alexira [117]

$-p(d+z)=-2z+59\qquad\text{use distributive property}\\\\-pd-pz=-2z+59\qquad\text{add pd to both sides}\\\\-pz=-2z+pd+59\qquad\text{add 2z to both sides}\\\\2z-pz=pd+59\\\\z(2-p)=pd+59\qquad\text{divide both sides by}\ (2-p)\neq0\\\\\boxed{z=\dfrac{pd+59}{2-p}}$

6 0

3 years ago

What is the sum of the first 20 terms of the series 3 + 14 + 25 + 25 + 36 +

Fynjy0 [20]

Answer:

$S _{20} = 2150$

Step-by-step explanation:

$a _{1} = 3 \\ a _{2} = 14 \\ d = a _{2} - a_{1} = 14 - 3 = 11 \\ n = 20$

$S _{n} = \frac{n}{2} (2a + (n - 1)d) \\ \\ S _{20} = \frac{20}{2} (2(3) + (20 - 1) \times 11) \\ \\ S _{20} = 10 \times (6 + 19 \times 11) \\ S _{20} = 10 \times (6 + 209) \\ S _{20} = 10 \times 215 \\ S _{20} = 2150$

6 0

4 years ago

Read 2 more answers

!; What would the ordered pair be?

Evgen [1.6K]

Answer:

(3, 2)

Step-by-step explanation:

y = 3x - 7

2x + 5y = 16

Solve for x:

2x + 5(3x - 7) = 16

2x + 15x - 35 = 16

17x = 51

x = 3

Solve for y:

y = 3(3) - 7

y = 9 - 7

y = 2

Answer:

(3, 2)

7 0

2 years ago

Read 2 more answers

The product of x and 2 is less than or equal to 4

maw [93]

I think it's equal to 4, It sounds the most likely

4 0

3 years ago