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2 years ago

Someone please help!!

Mathematics

1 answer:

sineoko [7]2 years ago

6 0

Answer:

x^2+9x+8

Step-by-step explanation:

Expand the following:

(x + 1) (x + 8)

(x + 1) (x + 8) = (x) (x) + (x) (8) + (1) (x) + (1) (8):

x x + 8 x + x + 8

x x = x^2:

x^2 + 8 x + x + 8

Grouping like terms, x^2 + 8 x + x + 8 = x^2 + (8 x + x) + 8:

x^2 + (8 x + x) + 8

8 x + x = 9 x:

Answer: |

| x^2 + 9 x + 8

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PLEASE HELP

Dmitry_Shevchenko [17]

Answer:12p+36>480

Step-by-step explanation: I got the answer somewhere else but I’m not 100% sure if it’s right

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2 years ago

Solve the system by substitution. 2x - y = -3, 2x-2y = -2

Sonja [21]

Answer:// Solve equation [1] for the variable y

[1] y = 2x - 3

// Plug this in for variable y in equation [2]

[2] -2•(2x-3) + 2x = 2

[2] - 2x = -4

// Solve equation [2] for the variable x

[2] 2x = 4

[2] x = 2

// By now we know this much :// Solve equation [1] for the variable y

[1] y = 2x - 3

// Plug this in for variable y in equation [2]

[2] -2•(2x-3) + 2x = 2

[2] - 2x = -4

// Solve equation [2] for the variable x

[2] 2x = 4

[2] x = 2

// By now we know this much :

y = 2x-3

x = 2

// Use the x value to solve for y

y = 2(2)-3 = 1

y = 2x-3

x = 2

// Use the x value to solve for y

y = 2(2)-3 = 1

Step-by-step explanation:

5 0

3 years ago

Somebody help me please ASAP!!!!!!!!!!!!!!

mixer [17]

Answer:

V=-15

Step-by-step explanation:

What you do is you take the negative 3 and multiply it by the 5 at the top which makes -15/v

7 0

3 years ago

Read 2 more answers

After graphing 4x-2y=5 and y=x, in how many points do they intersect

Angelina_Jolie [31]

Answer:

1 at (2.5, 2.5)

Step-by-step explanation:

you can try graphing it on desmo

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3 years ago

An employee at a department store is stocking cell phone cases. He has a box of 80 cases. Among the 80 cases, 40 are black, 10 a

Salsk061 [2.6K]

Answer:

$\sf \dfrac{203}{4108}$

As a decimal = 0.05 (nearest hundredth)

Step-by-step explanation:

$\sf Probability \ of \ an \ event \ occurring = \dfrac{Number \ of \ ways \ it \ can \ occur}{Total \ number \ of \ possible \ outcomes}$

First pick:

$\sf \implies P(pink)=\dfrac{30}{80}$

As the case is NOT replaced, second pick:

$\sf \implies P(pink)=\dfrac{30-1}{80-1}=\dfrac{29}{79}$

As the case is NOT replaced, third pick:

$\sf \implies P(pink)=\dfrac{29-1}{79-1}=\dfrac{28}{78}$

Therefore,

$\sf \implies P(pink \ and \ pink \ and \ pink)=\dfrac{30}{80} \times \dfrac{29}{79} \times \dfrac{28}{78}=\dfrac{203}{4108}$

Answer as a decimal = 0.05 (nearest hundredth)

6 0

2 years ago

Someone please help!!​

Someone please help!!