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3 years ago

Is 90° an acute angle, right angle, obtuse angle, or straight angle?

Mathematics

2 answers:

sineoko [7]3 years ago

8 0

Answer:

This would be a right angle.

Step-by-step explanation:

An angle less than 90˚ would be an acute angle. An obtuse angle is where the angle is more than 90˚. A right angle is where the angle is exactly 90˚ (there is a tiny square that. represents 90˚). A straight angle is a 180˚ angle.

VashaNatasha [74]3 years ago

6 0

Answer:

90 degrees is a right angle.

Step-by-step explanation:

^ That would be a 90 degrees angle.

|____

|___|____________

Imagine this is a graph, that little square of the right would represent 90 degrees.

Angles less than 90 are acute angles, angles over 90 but under 180 degrees would be obtuse, and angles that are equal to 180 degrees are straight.

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Brian has reduced his cholesterol level by 18% after his last check up. If his original level was 220, what is his approximate

Drupady [299]

Answer:

Step-by-step explanation:

multiply 18% and 220 which is 39.6

subtract 39.6 from 220 which is 180.4

simplify

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3 years ago

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ehidna [41]

E. Each ticket costs $15 and Gina has to buy 5 tickets for her and her friends. $w is the total cost of 5 tickets that cost $15 each.

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3 years ago

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State one form of the Law of Cosines and provide a trick for writing the other two forms and explain when Law of Cosines should

Yuki888 [10]

Solving for Angles

$\displaystyle \frac{a^2 + b^2 - c^2}{2ab} = cos∠C \\ \frac{a^2 - b^2 + c^2}{2ac} = cos∠B \\ \frac{-a^2 + b^2 + c^2}{2bc} = cos∠A$

* Do not forget to use the inverse function towards the end, or elce you will throw your answer off!

Solving for Edges

$\displaystyle b^2 + a^2 - 2ba\:cos∠C = c^2 \\ c^2 + a^2 - 2ca\:cos∠B = b^2 \\ c^2 + b^2 - 2cb\:cos∠A = a^2$

You would use this law under two conditions:

One angle and two edges defined, while trying to solve for the third edge
ALL three edges defined

* Just make sure to use the inverse function towards the end, or elce you will throw your answer off!

_____________________________________________

Now, JUST IN CASE, you would use the Law of Sines under three conditions:

Two angles and one edge defined, while trying to solve for the second edge
One angle and two edges defined, while trying to solve for the second angle
ALL three angles defined [of which does not occur very often, but it all refers back to the first bullet]

* I HIGHLY suggest you keep note of all of this significant information. You will need it going into the future.

I am delighted to assist you at any time.

7 0

3 years ago

What is the range of y=2 to the power of x

melisa1 [442]

The range is 0 to indifinity

6 0

4 years ago

PLEASE HELP ME ASAP!!

marshall27 [118]

Answer:

(0.5, 0.5)

Step-by-step explanation:

Use the midpoint formula: $(\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})$

The points are:

A(-2, 4)
C(3, -3)

$(\frac{-2+3}{2},\frac{4-3}{2})\\\\(\frac{1}{2},\frac{1}{2})$

Therefore, the midpoint between A and C is located at (0.5, 0.5).

6 0

3 years ago