Which interval would not be used for the stems of a stem-and-leaf plot? 10 100 1 5

Divide (-3x^2 - 9x) ÷ (x + 3) please explain/show work! <33

Stolb23 [73]

Step-by-step explanation:

 $( - 3 {x}^{2} - 9x) \div (x + 3)$ 

This is the original equation so you will open the brackets.

 $- 3 {x}^{2} - 9x \div x + 3$ 

The x will cross the division sign making it times x.

 $3 {x}^{2} - 9x \times x = 3$ 

So you will proceed to multiply the 9x by x making it;

 $3 {x}^{2} - 9 {x}^{2} = 3$ 

So you will subtract 9x² from 3x² which won't be possible so it will be negative.

 $- 6 {x}^{2} = 3$ 

Then you will square root both sides making it;

 $- \sqrt{6 {x}^{2} } = \sqrt{3}$ 

So the ² will cancel the √ leaving 

-6x=√3

-6x=1.73(Divide both sides by -6)

x=0.288

That's the final answer.

8 0

3 years ago

A Subaru Outback and a Freightliner Cascadia truck leave an intersection at the same time. The Outback heads west at an average

Nadusha1986 [10]

Answer:

d = 83.22t

Step-by-step explanation:

The lines form legs of a right triangle, so the distance between the cars is the hypotenuse

The lines at t hours are:

70t and 45t

So the distance d is:

d = √(70t)²+(45t)² = √4900t²+2025t² = √6925t² = 83.22t
d = 83.22t

3 0

3 years ago

What is the difference, in hours and minutes, between these times?

Aleks [24]

Answer:

a) 3 hrs 35 mins

b) 2 hrs 45 mins

c) 4 hrs 30 mins

d) 4 hrs 5 mins

Step-by-step explanation:

8 0

3 years ago

The ratio of martas hourly pay to khalids hourly pay is 6:5

Talja [164]

The hourly pay before the increase for marta and khalid is 21 and 17.5.

Given:

the ratio of martas hourly pay to khalids hourly pay is 6:5 both marta and Khalid get an increase of 1.50 in their hourly pay The ratio of Martas hourly pay to Khalid hourly pay after this increase is 13:11

Let x and y be the hourly pay before increase

x/y = 6/5

x = 6/5*y

x + 1.50 / y + 1.50 = 13/11

11(x+1.50) = 13(y+1.50)

11x + 16.5 = 13y + 19.5

11(6/5*y) = 13y + 19.5 - 16.5

66y/5 = 13y + 3.5

66y - 13*5y / 5 = 3.5

66y - 65y = 17.5

y = 17.5

x = 6/5*17.5

= 105/5

x = 21

Learn more about the ratio here:

brainly.com/question/13419413

#SPJ1

8 0

2 years ago

I have 2 triangle faces. i have 3 rectanglar faces. i have 6 vertices. i have 9 edges. what am i?

MissTica

Answer:

You are a rectangular prism.

Step-by-step explanation:

Rectangular prisms fill the criteria you described: two triangular faces, three rectangular faces, 6 vertices, and 9 edges. Thus, the answer is correct.

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Hoped that helped! If so, mark me Brainliest!

8 0

3 years ago