3 years ago

ILL GIVE BRAINLIESSTTT

Mathematics

1 answer:

Roman55 [17]3 years ago

5 0

Answer:

its "D"

Step-by-step explanation:

i used a graphing calculator

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2 tacos cost $6. What is the cost for 6 tacos?

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Answer:

2 tacos = $6

1 tacos = $3

6 tacos = 6 X 3

= $18

18$ is the cost for 6 tacos

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3 years ago

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An elevator started at the first floor and went up 18 floors. It then came down 11 floors and went back up 16.

tatyana61 [14]

It stopped on the 24th floor

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2 years ago

A segment in the complex plane has a midpoint at –1 + i. If the segment has an endpoint at –5 – 7i, what is the other endpoint?

saul85 [17]

Answer:

Option D. 3 + 9i

Step-by-step explanation:

We know that the formula to find the middle point is:

$(\frac{x_1 + x_2}{2},\frac{z_1 + z_2}{2})$

We know that the middle point is:

$-1 + i$

And the end point $(x_2, z_2)$ is: $-5 -7i$

We wish to find the point $x_1,z_1$

So we can write the following equation

$\frac{x_1 + (-5)}{2} = -1$ (i)

and

$\frac{z_1 + (-7i)}{2} = i$ (ii)

Now we clear $x_1$ from equation (i) and clear $z_1$ from equation (ii)

For equation (i) we have:

$-2 = x_1 -5 \\\\x_1 = 3$

For equation (ii) we have:

$2i = z_1 -7i\\\\z_1 = 9i$

Then the initial point $x_1, z_1$ is: $3 + 9i$

The correct answer is the last option 3 +9i

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3 years ago

A ratio is... A) the difference between two numbers B) a comparison of two numbers by division C) a comparison of two numbers by

nlexa [21]

C
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3 years ago

Let X, Y, and Z be jointly continuous random variables. Assume that all conditional PDFS and expectations are well defined. E.g.

BabaBlast [244]

Answer:

True

Step-by-step explanation:

Given that X,Y and Z are jointly continuous random variables

For : E [g(Y) | Y= x] = ∫g(y) fY| X ( y|x ) dy

For all choices of g the function is true given that g(y) = a random variable

A random variable is a variable with an unknown value it can be said to assign values to an experimental outcome.

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3 years ago