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2 years ago

PLEASE HELP!!!!!

Mathematics

1 answer:

Ratling [72]2 years ago

8 0

Answer:

The system equation:

$\left \{ {{0,25x+0.10y=2.40} \atop {x+y=12}} \right.$

Step-by-step explanation:

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If a data value in a normal distribution has a negative z-score, which of the following must be true?

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The data value must be less than the mean.

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Which expression has a value of 7/12 A. 6/8+1/4 B. 1/3+1/4 C. 7/8+4 D. 2 1/12+5 1/12

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Answer:

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Answer:

James is 37, Rob is 44, and Kate is 35

Step-by-step explanation:

Set up an equation where x is James' age:

Rob's age can be represented by x + 7, since he is 7 years older than James

Kate's age can be represented by x - 2, since she is 2 years younger than James

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The endpoints of a line segment are at the coordinates (–6, 3, 4) and (4, –1, 2). What is the midpoint of the segment?

natulia [17]

Answer:

$( - 1,1,3 )$

Step-by-step explanation:

Use the midpoint formula:

$(\frac{x_1+x_2}{2},\frac{y_1+y_2}{2}, \frac{z_1+z_2}{2} )$

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2 years ago

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