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2 years ago

12

The mean age of five children is 8 years

2 answers:

zimovet [89]2 years ago

5 0

Answer:

its 8

Step-by-step explanation:

alina1380 [7]2 years ago

3 0

Answer:

9

Step-by-step explanation:

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Lines a and bare perpendicular. If the slope of line a is - 2/3 is the slope of line b?

Elena-2011 [213]

Answer:

B. 3/2

Step-by-step explanation:

The slopes of perpendicular lines are negative reciprocals

The negative reciprocals of -2/3

is 3/2

5 0

2 years ago

Please helppppppppppppppp

tatyana61 [14]

Answer:

looks pretty hard

Step-by-step explanation:

4 0

2 years ago

Evaluate these please [-4+9]<br> [-4]+9

Andrews [41]

Answer:

-11

Step-by-step explanation:

Simplify

5×−4+9

Simplify

−20+9

Answer

−11

6 0

2 years ago

What is the equation of the line in point-slope form?

evablogger [386]

Answer:

$y +500 = -\frac{1}{5}(x - 100)$

Step-by-step explanation:

Given

The attached graph

Required

Determine the equation in point slope form

From the graph, we have the following points;

$(x_1,y_1) = (-400,-400)$

$(x_2,y_2) = (100,-500)$

First, we calculate the slope (m):

$m = \frac{y_2 - y_1}{x_2 - x_1}$

$m = \frac{-500 - (-400)}{100- (-400)}$

$m = \frac{-500 +400}{100+400}$

$m = \frac{-100}{500}$

$m = -\frac{1}{5}$

The equation is then calculated using:

$y - y_2 = m(x - x_2)$

Substitute x and y values

$y - (-500) = -\frac{1}{5}(x - (100))$

$y +500 = -\frac{1}{5}(x - 100)$

8 0

2 years ago

<img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B%28%20%7B%20-%20x%7D%5E%7B%20-%201%7D%29%20%5E%7B0%7D%20%20%7D%7B4%20%7By%7D%5E%7

Kipish [7]

Answer:

1/4y

Step-by-step explanation:

(-x^-1)^0/(4y^-1*y^2)

anything to the power of 0 gives you 1,

1/(4y^-1*y^2)

-1+2=1

1/4y^1=1/4y

8 0

2 years ago