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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Use De Morgan's laws to write an equivalent statement for the sentence. The bus does not have an engine or the people do not hav

DanielleElmas [232]

Answer:

A. It is false that the bus has an engine and the people have money.

Step-by-step explanation:

Given statement is -

The bus does not have an engine or the people do not have money.

The De Morgan's laws states that the complement of the union of two given sets is the intersection of their complements.

Also, the complement of the intersection of these two sets is the union of their complements.

negative (p ∨ q)⇔ p ∧ negative q

So, here option A is correct. It is false that the bus has an engine and the people have money.

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3 years ago

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Over [174]

Answer:

-5√7 + 7√6

Step-by-step explanation:

5√7 + 12√6 - 10√7 - 5√6

Adding like terms:-

= -5√7 + 7√6 Answer.

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3 years ago

In variables estimation sampling, the sample standard deviation is used to calculate the?

Nikitich [7]

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<h3>What is sample standard deviation?</h3>

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The sample standard deviation (s) is a measurement of the variation from the expected values and is equal to the sample variance's square root.

where

s = sample standard deviation

N = the number of observations

$xi$ = the observed values of a sample item