4 years ago

What is the midpoint between (5.2).(-4,-3)

Mathematics

1 answer:

Murrr4er [49]4 years ago

4 0

Answer:

Step-by-step explanation:

(5-4)/2 = 1/2

(2-3)/2 = -1/2

(1/2, -1/2)

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40°

Step-by-step explanation:

∠ACB = ∠DCE ( vertically opposite angle )

Now...

a + 90° + 50° = 180° ( the sum of interior angle of triangle is 180° )

a + 140° = 180°

a = 180° - 140°

a = 40°

hence the value of a is 40°

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4 years ago

On Monday, Maggle ran n miles. On Tuesday, she ran 90% of the number of miles that she ran on Monday. On Wednesday, she ran 50%

Nimfa-mama [501]

Answer:

$Total = 2.35n$

Step-by-step explanation:

Given

Monday = n

Tuesday = 90% of Monday

Wednesday = 50% of Tuesday

Required

Determine the total miles

We have:

Tuesday = 90% of Monday

Substitute n for Monday

Tuesday = 90% of n

$Tuesday = 90\% * n$

Express percentage to decimal

$Tuesday = 0.90 * n$

$Tuesday = 0.90n$

We also have that:

Wednesday = 50% of Tuesday

Wednesday = 50% * Tuesday

Substitute 0.90n for Tuesday

$Wednesday = 50\% * 0.90n$

Express percentage to decimal

$Wednesday = 0.50 * 0.90n$

$Wednesday = 0.45n$

The total number of miles is:

$Total = Monday + Tuesday + Wednesday$

$Total = n + 0.90n + 0.45n$

$Total = 2.35n$

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Yes.

Step-by-step explanation:

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