3 years ago

Need some help! Please

Mathematics

1 answer:

Genrish500 [490]3 years ago

3 0

this is confusing where is angle b , a, and c

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If 1-cosA = 1/2 , Then find the value of sinA.

zimovet [89]

Step-by-step explanation:

Given :

1- cosA = 1/2

or, CosA = 1 -1/2

Therefore ; CosA = 1/2 = b/h

According to the Pythagoras theorem,

P = root under h^2 - b^2

= root under (2)^2 - (1)^2

= root under 4 -1

= root 3

Again,

SinA = P/h

= root 3 / 2

8 0

2 years ago

ות

Ulleksa [173]

Answer:

dont use this

Step-by-step explanation:

oinf+euiv=4

7 0

3 years ago

Entering the expressway is a hazardous vehicle maneuver. true or false

ollegr [7]

<span>Entering the expressway is a hazardous vehicle maneuver.
</span>The answer is True

6 0

3 years ago

HELP!!!

marusya05 [52]

The equation of an ellipse is x²/a² + y²/b² =1

a being the distance between the center & x intercept =7
b being the distance between the center & y intercept =5

Hence the equation of this ellipse is:

x²/49 + y²/25 =1

3 0

3 years ago

Which choice is the solution to the inequality below?

Georgia [21]

<h3>hello!</h3>

In order to solve this inequality, we should divide both sides by 9:-

$\sf{9x < 72}$

Why 9? Because x is multiplied by 9, and we need to isolate x in order to find its value.

$\sf{x < 8}$

Hence, that's the solution to the inequality.

<em>It also means that the numbers less than 8 will satisfy the given inequality (make the inequality true)</em>

(Option C is correct :) )

Hope everything is clear; if you need any explanation/clarification, kindly let me know, and I will comment and/or edit my answer :)

8 0

2 years ago

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