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gladu [14]
3 years ago
12

Solve 2 cos ø + 2=3 in the interval from 0 to 2 π.Round to the nearest hundredth.

Mathematics
1 answer:
fomenos3 years ago
3 0

Answer:

The value of ∅ for the given trigonometrical equation is 60° .

Step-by-step explanation:

Given as :

The Trigonometrical equation

2 cos∅ + 2 = 3

<u>Now, Solving this equation to get the value of ∅</u>

∴ The equation can be written as

2 cos∅ = 3 - 2

or , 2 cos∅ = 1

or , cos∅ = \dfrac{1}{2}

∴ ∅ = cos^{-1}(\frac{1}{2})

I.e ∅ = 60°

So,The value of ∅ for the given trigonometrical equation = ∅ = 60°

Hence, The value of ∅ for the given trigonometrical equation is 60° . Answer

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What does AD equal? PICTURE INCLUDED* Triangle congruence and similarity.
mafiozo [28]

Answer:

AD = 7

Step-by-step explanation:

Given that the two triangles are similar by the SSS (side side side) postulate, the triangles share the same ratios when it comes to their sides.

We know the values for lines DB, EB and CB, therefore we can solve for AB, and subtract DB to find AD

We can solve the problem by solving for x:

\frac{x}{32} =\frac{21}{24}

Cross multiply.

24x = 672

Simplify.

x=28

Subtract the value of DB to find AD.

28-21=7

AD=7

8 0
3 years ago
Help with math homework
Anestetic [448]
1) 65+57= 122
180-122= 58

2) 40+90=130
180-130=50

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4) 85+50= 135
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8 0
3 years ago
6th grade math help me pleaseeee
Anastasy [175]

Answer:

10 z

Step-by-step explanation:

Hope this helped :)

8 0
3 years ago
I need to know, the area of sector AOB is what fractional part of the area of circle O
sertanlavr [38]

We are given that triangle AOB

6 0
1 year ago
A cheetah can run up to 75 miles per hour how many yards per minute is this
Nataly [62]
75 miles per hour means,
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6 0
3 years ago
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