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sergij07 [2.7K]
3 years ago
8

Solve for x : 4/5 x − 2 = 7

Mathematics
2 answers:
Sunny_sXe [5.5K]3 years ago
8 0

Answer: x = 45/4

Step-by-step explanation:

PtichkaEL [24]3 years ago
8 0

Answer:

11 1/4 simplified form

45/4 exact form

11.25 decimal form

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CAN someone help
Lorico [155]

Answer:

Sara

Step-by-step explanation:

6 0
2 years ago
Explain how 7.69 * 15.3 = 117.657
Anni [7]

Answer:

117.657



Step-by-step explanation:

Line up your decimals take out your decimals and put them in after you solve


   

769

*153

----------

         



So if you know long multiplecation then you will find your answer



Good luck hope this helps :)


~Animaljamissofab ♥

5 0
4 years ago
The glee club has a set of 48 classical cds and a set of 42 show tune cds. each set can be divided equally among the club member
Hoochie [10]
We have to find the GCF (Greatest Common Factor) of 48 and 42 here... 

Factors of 48:
1,2,3,4,6,8,12,16,24,48

Factors of 42: 
1,2,3,6,7,14,21,42

The largest common factor of these two numbers is 6. 


So, there can be a maximum of 6 members in the club.. 

Hope this helped!
6 0
3 years ago
Read 2 more answers
Given: cos θ=-4/5, sin x = -12/13, θ is in the third quadrant, 
USPshnik [31]

By definition of tangent,

tan(2<em>θ</em>) = sin(2<em>θ</em>) / cos(2<em>θ</em>)

Recall the double angle identities:

sin(2<em>θ</em>) = 2 sin(<em>θ</em>) cos(<em>θ</em>)

cos(2<em>θ</em>) = cos²(<em>θ</em>) - sin²(<em>θ</em>) = 2 cos²(<em>θ</em>) - 1

where the latter equality follows from the Pythagorean identity, cos²(<em>θ</em>) + sin²(<em>θ</em>) = 1. From this identity we can solve for the unknown value of sin(<em>θ</em>):

sin(<em>θ</em>) = ± √(1 - cos²(<em>θ</em>))

and the sign of sin(<em>θ</em>) is determined by the quadrant in which the angle terminates.

<em />

We're given that <em>θ</em> belongs to the third quadrant, for which both sin(<em>θ</em>) and cos(<em>θ</em>) are negative. So if cos(<em>θ</em>) = -4/5, we get

sin(<em>θ</em>) = - √(1 - (-4/5)²) = -3/5

Then

tan(2<em>θ</em>) = sin(2<em>θ</em>) / cos(2<em>θ</em>)

tan(2<em>θ</em>) = (2 sin(<em>θ</em>) cos(<em>θ</em>)) / (2 cos²(<em>θ</em>) - 1)

tan(2<em>θ</em>) = (2 (-3/5) (-4/5)) / (2 (-4/5)² - 1)

tan(2<em>θ</em>) = 24/7

4 0
3 years ago
Find the sum: -6 + 3
Andrei [34K]

Negative 6 plus positive 3 equals negative three.

3 0
3 years ago
Read 2 more answers
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