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4 years ago

If a= (4,-5) and b= (7,-9), what is the length of ab

Mathematics

2 answers:

Neko [114]4 years ago

8 0

The answer is 5 units.

faust18 [17]4 years ago

5 0

A (4,-5)
B (7,-9)

 $AB= \sqrt{(x_A-x_B)^2+(y_A-y_B)^2} \\ x_A=4; \ \ x_B=7; \ \ y_A=-5; \ \ y_B=-9; \\ \\ AB= \sqrt{(4-7)^2+(-5-(-9))^2}= \sqrt{(-3)^2+4^2} = \sqrt{25}=5$

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Answer:

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3 years ago

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algol [13]

Hi there! :)

Answer:

=150

*The answer must have a positive sign.*

Step-by-step explanation:

<h2>Lesson: Order of operations</h2>

Stands for:

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Left to right.

First, you do multiply from left to right.

$10*10=100$

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I hope this helps you!

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3 years ago

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Determine if the graph is symmetric about the x-axis, the y-axis, or the origin.

MAVERICK [17]

Answer:

The graph is symmetric about the x-axis only

Step-by-step explanation:

* Lets study the limacon curve

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# r = a + b sin θ

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- When the value of a is greater than the value of b, the graph is

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* Notice that, in each of the graphs of the liamcons, changing

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∵ r = -2 + 3 cos Ф

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3 years ago

One-half the cube of m subtracted by 4 *

Anettt [7]

Answer:

$\frac{m^3}{2} - 4$

Step-by-step explanation:

Required

Determine an expression for the given statement

The expression can be rewritten as:

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one-half * the cube of m = $\frac{1}{2} * m^3$

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$\frac{1}{2} * m^3 - 4$

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Hence, The corresponding expression is $\frac{m^3}{2} - 4$

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3 years ago