4 years ago

Help me please 7−s/2>3

Mathematics

2 answers:

Dovator [93]4 years ago

7 0

Answer:

-s/2 > -4

s/2 > 4

s > 2

Step-by-step explanation

Alja [10]4 years ago

3 0

Answer:

s < 8

Step-by-step explanation:

7−s/2>3

Subtract 7 from each side

7-7−s/2>3-7

-s/2 > -4

Multiply each side by -2. Remember to flip the inequality since we are multiplying by a negative.

-s/2 * -2 < -4*-2

s < 8

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3 years ago

What are the values of x and y x=9/4 y=3/4 x=9/4 y=15/4 x=15/4 y=5/4 x=3/4 y=15/4

laiz [17]

The complete question in the attached figure

we know that

in the triangle BDC
cos alfa=3/y----------> equation 1
sin alfa=x/y----------> equation 2

in the triangle ABD
cos alfa=4/5--------> equation 3
sin alfa=3/5---------> equation 4

then

Equal equation 1 and 3
3/y=4/5---------> y/3=5/4----------> y=15/4

Equal equation 2 and 4
x/y=3/5-------> x=3*y/5------------> 3*15/(4*5)-----> x=9/4

the answer is
x=9/4 y=15/4