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lbvjy [14]
3 years ago
14

Cos77.cos88 - sin77.cos2​

Mathematics
1 answer:
jolli1 [7]3 years ago
6 0

Answer:

0.38499153288

Step-by-step explanation:

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Please help guys
timofeeve [1]

Answer:

u

Step-by-step explanation:

in which class. do uuuu

8 0
3 years ago
Which expression is equivalent to a^3 • b^3 • a^-3 • b?
Dmitry [639]
The answer is B! b^4. If we examine the expression given, we have a^3 * b^3 * a^-3 * b= a^3/a^3 * b^3 * b = 1 * b^4

Hope this helps! Any questions please feel free to ask!!

Thank you!!
3 0
3 years ago
What is the diameter of a hemisphere with a volume of 8514 cm', to the nearest
Mandarinka [93]

Answer:

32.0 cm

Step-by-step explanation:

volume of a hemisphere = (2/3)πr3

r = cube root (Volume * 3/2 * 1/π )

r = cube root ( 8514 * 3/2 * 1/π)

r = 15.96

in the nearest tenth r = 16.0 cm

D= 2r

D= 2(16)

D= 32cm

6 0
2 years ago
Read 2 more answers
In your own words, explain the concept of a variable. Discuss how you can teach a class about the use of variables and how they
vesna_86 [32]

VARIABLE is a symbol which is used for representation in a  math.

According to the statement

we have to explain about the what is a variable.

So, VARIABLE is a symbol which is used for representation in a  math.

It represent the so many things like Algebra, Matrix,Vector etc. and also so many things.

A variable may also be called a data item.

It is used to represent a data like country name, name, age, date of birth etc.

we know that the every thing is changeable. So, like ther things variables are also changeable.

The changing of variable parameters is called as variation. In problems relating to two or more variables, it is seen that the value of a variable changes with the change in the value.

So, VARIABLE is a symbol which is used for representation in a  math.

Learn more about VARIABLE here brainly.com/question/1295072

#SPJ4

8 0
1 year ago
Find the exact value of T Image below
Elanso [62]

Answer:

a) 1/800 or 0.00125

b) i) 0.0013

ii) 0.001

c) 60%

Step-by-step explanation:

T = [tan(2×30)+1][2cos(30)-1] ÷ (y²-x²)

T = (tan60 + 1)(2cos30 - 1) ÷ (41² - 9²)

T = (sqrt(3) + 1)(sqrt(3) - 1) ÷ 1600

T = (3-1)/1600

T = 2/1600

T = 1/800

T = 0.00125

Error: 0.002 - 0.00125

0.00075

%error

0.00075/0.00125 × 100

60%

4 0
3 years ago
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