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Maru [420]
3 years ago
7

True or false: the value of 3pi/2 is a solution for the equation 2sin^2 x-sin x-1 =0

Mathematics
1 answer:
Ede4ka [16]3 years ago
6 0

The answer would be true, because the 2 on the bottom of the fraction would cancel out the 2 in the equation.

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HURRY!!!!! I NEED HELP!!!!!<br>Find Arc MN <br><br><br>A. 20<br><br>b.60<br><br>c.66<br><br>d.120
Ad libitum [116K]

We have been given a circle. We are asked to find the measure of arc MN.

We know that the measure of all arcs in a circle is equal to 360 degrees. SO we can set an equation as:

\widehat{MN}+\widehat{NO}+\widehat{OL}+\widehat{LM}=360^{\circ}

Upon substituting our given values, we will get:

\widehat{MN}+110^{\circ}+130^{\circ}+54^{\circ}=360^{\circ}

\widehat{MN}+294^{\circ}=360^{\circ}

\widehat{MN}+294^{\circ}-294^{\circ}=360^{\circ}-294^{\circ}

\widehat{MN}=66^{\circ}

Therefore, measure of arc MN is 66 degrees and option 'c' is the correct choice.

7 0
3 years ago
The weight of a person on Venus varies directly with his or her weight on Earth. A person weighing 120 pounds on earth weights 1
PilotLPTM [1.2K]

Answer: HOPE THIS HELPED YOU! :D     ;P

159lbs. (Pounds)

Step-by-step explanation:

V = kE

106 = k*120

k = 53/60

53/60 * 180 = 159lbs.

6 0
3 years ago
Read 2 more answers
5 + (9) (6) - 4 = I want an explanation too not too long.
Korvikt [17]

9 x 6 = 54

54 - 4 = 50

50 + 5 = 55

i think, your question isn't very clear

7 0
3 years ago
What type of number is √5? Choose all answers that apply:
Vlada [557]
<h2>SOLVING</h2>

\Large\maltese\underline{\textsf{A. What is Asked}}

What type of number is \bf{\sqrt 5}? Select all that apply

\Large\maltese\underline{\textsf{B. This problem has been solved!}}

Let's start by taking a look at all the four sets of numbers.

<h2>A: Whole number</h2><h3>{0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22...∞}</h3>

The set is shown above. To be honest, this is an infinitely small part of the number set; the whole number set would take FOREVER to type ;)

<h2>B: Integers</h2><h3>{∞...-2,-1,0,1,2,3,4,5,6,7,8,9...∞}</h3>

Wow, this set starts at negative infinity and ends at positive infinity!

<h2>C: Rational</h2>

This set consists of all integers, decimals, and fractions.

<h2>D: Irrational</h2>

That's where the desired number \bf{\sqrt{5}} belongs!

\cline{1-2}

\bf{Result:}

                 \bf{=The\;fourth\;option}

\LARGE\boxed{\bf{aesthetics \not1\theta l}}

<em>∞</em>

8 0
2 years ago
PLEASE HELP PLEASE FJFJEDDJE
Luba_88 [7]
You would want to multiply 2.93 * 30. That equals 89.7, so it will cost her $89.70 :)
8 0
3 years ago
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