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3 years ago

PLEASE HELP!!!!!!!!!

Mathematics

1 answer:

stiv31 [10]3 years ago

5 0

Answer:

The Best answer choice is D

Step-by-step explanation:

This one is the best choice because it fits the shape the best. The other ones don't complete the shape but D does.

Hope that helps!

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Anyone knows what’s the answer to this

Andreas93 [3]

I have no clue how to answer this question

5 0

3 years ago

What is the midpoint of AB?

Citrus2011 [14]

Answer:

$(-4, -\frac{1}{2})$

Step-by-step explanation:

Hi there!

We are given the line segment, with the end points AB

The coordinates of A are (-5, -4), and the coordinates of B are (-3, 3).

We want to find the midpoint of the line segment AB

The midpoint formula is given as $(\frac{x_1+ x_2}{2}, \frac{y_1 + y_2}{2})$ , where $(x_1, y_1)$ and $(x_2, y_2)$ are coordinates

We have two coordinates, which is what we need, but let's label their values to avoid any confusion:

$x_1=-5\\y_1=-4\\x_2=-3\\y_2=3$

Now substitute those values into the formula:

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

$(\frac{-5+ -3}{2}, \frac{-4+ 3}{2})$

Now simplify the numerator and denominator

$(\frac{-8}{2}, \frac{-1}{2})$

Simplify again:

The midpoint is (-4, $-\frac{1}{2}$ )

Hope this helps!

7 0

3 years ago

Which of these nonterminating decimals can be converted into a rational number? Plz help

Archy [21]

Answer:

0.02020202... = 2/99.

Step-by-step explanation:

This is a repetitive decimal number . It can be converted to a rational number:

.020202, * 100 = 2.0202...

.020202 * 1 = 0 0202....

Subtract

0.020202 * 99 = 2

So 0.020202.. = 2/99.

6 0

3 years ago

A robot has a straight arm 20 inches long that can rotate about the origin of a coordinate system. If the robot’s hand is locate

scoundrel [369]

Answer:

The location of the robots hand after rotating 45° counterclockwise from (-20, 0) in inches is (-14.14, 14.14)

The location of the robots hand after rotating 45° clockwise from (-20, 0)) in inches is (-14.14, -14.14)

Step-by-step explanation:

The initial location of the robots hand = (-20, 0)

The angle through which the robot rotates his hand = 45°

∴ We have the length of the robots hand = 20 inches

We note that (-20, 0) is in the 2nd Quadrant

The location of the robots hand after rotating 45° counterclockwise = 135°

Therefore, the location of the robots hand after the rotation = (20×cos(135°), 20×sin(135°)) = (-10·√2, 10·√2) = (-14.14, 14.14)

The location of the robots hand after rotating 45° clockwise from (-20, 0) = 225°

Therefore, the location of the robots hand after the rotation = (20×cos(225°), 20×sin(225°)) = (-10·√2, -10·√2) = (-14.14, -14.14)

8 0

3 years ago

P(z=1.85) what is the area to the left of z= 1.85

Kisachek [45]

0.84(because 20% of the observations are about 0.84)
You've found the 80th percentile! The 80th percentile of the standard normal distribution is 0.84. That's because 80% of the observations fall below 0.84. (Note: The 80th percentile of every normal distribution is 0.84 times the standard deviation above the mean.)

7 0

3 years ago