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Contact [7]
3 years ago
13

1/3+a=5/4 a= i need help

Mathematics
2 answers:
Harlamova29_29 [7]3 years ago
8 0

Answer:

a= 11/22 or decimal a= 0.916

Step-by-step explanation:

Subtract 1/3 from both sides of the equation and you get a= 5/4 - 1/3. Then, simplify the right side of the equation and you get a= 11/12. Hope this helped!

Katarina [22]3 years ago
6 0

Answer:

a=5/4-1/3 Then multiply by 12

а=12*5/4-12*1/3

a=3*5-4*1

a=15-4

a=11

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irina1246 [14]

Answer:

See Explanation

Step-by-step explanation:

\frac{ \sin5A}{\sin A}  -  \frac{ \cos5A}{\cos A}  = 4\cos2A \\  \\ LHS = \frac{ \sin5A}{\sin A}  -  \frac{ \cos5A}{\cos A}   \\  \\  =  \frac{ \sin5A \:\cos A -  \cos5A \:  \sin A}{\sin A \:\cos A }  \\  \\  =  \frac{ \sin(5A -A )}{\sin A \:\cos A}  \\  \\ =  \frac{ \sin 4A}{\sin A \:\cos A}  \\  \\ =  \frac{ 2\sin 2A \: \cos 2A}{\sin A \:\cos A}  \\  \\ =  \frac{ 2 \times 2\sin A \: \cos A \: \cos 2A}{\sin A \:\cos A}  \\  \\ =  \frac{ 4\sin A \: \cos A \: \cos 2A}{\sin A \:\cos A}  \\  \\ =4\cos 2A \\  \\  = RHS \\  \\ thus \\  \\  \frac{ \sin5A}{\sin A}  -  \frac{ \cos5A}{\cos A}  = 4\cos2A \\  \\ hence \: proved

5 0
3 years ago
There are 35 birds in a tree. Then 17 flew away. How many birds are tin the tree now. Regroup a ten.
alexira [117]
18 birds are left then regroup a ten 28 I hope it’ helps
4 0
3 years ago
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What is the value of x? Round to the nearest tenth.
kotykmax [81]

Answer:

27.5

Step-by-step explanation:

first you find what 30x30 is as A squared plus B squared is equal to C squared. your A is 12 and your C is 30.

so!

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HELP TUTOR…<br> ss<br> z<br> z<br> z<br> z
kondor19780726 [428]

Answer:

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Step-by-step explanation:

Formula for standard deviation is;

σ = √(Σ(x - μ)²)/(n - 1)

A) For large wild cats;

μ = Σx/n = (70 + 40 + 30 + 40 + 35 + 35 + 35 + 35 + 10)/9 = 36.67

σ = √((70 - 36.67)² + (40 - 36.67)² + (30 - 36.67)² + (40 - 36.67)² + (35 - 36.67)² + (35 - 36.67)² + (35 - 36.67)² + (35 - 36.67)² + (10 - 36.67)²)/(9 - 1)

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B) For various birds;

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Step-by-step explanation:

3 0
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