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4 years ago

Which values of x are solutions of the equation? 5(x – 6) = 10x

Mathematics

2 answers:

kow [346]4 years ago

8 0

X=-6

Isolate the variable by dividing each side by factors that don't contain the variable.

nataly862011 [7]4 years ago

6 0

X=-6 that should be the answer

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Help please ASAP!!!!!!! right answers only

olga2289 [7]

Answer:

what grade are you in that seems hard

Step-by-step explanation:

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4 years ago

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Choose the correct pair of expressions to complete the solution of Sine (x + StartFraction 3 pi Over 2 EndFraction) = negative S

levacccp [35]

Answer:

C, sin(x), -1

Step-by-step explanation:

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split up the equation using the sine sum equation

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3 years ago

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After a baseball is hit, the height h (in feet) of the ball above the ground t seconds after it is hit can be approximated by th

lubasha [3.4K]

Answer:

The ball will take 4.05 seconds to hit the ground.

Step-by-step explanation:

we have

$h=-16t^{2}+64t+3$

This is a quadratic equation (vertical parabola) open down

The vertex is a maximum

we know that

The ball hit the ground when h=0

Solve the quadratic equation

For h=0

$-16t^{2}+64t+3=0$

The formula to solve a quadratic equation of the form

$at^{2} +bt+c=0$ is equal to

$t=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}$

in this problem we have

$-16t^{2}+64t+3=0$

$a=-16\\b=64\\c=3$

substitute in the formula

$t=\frac{-64(+/-)\sqrt{64^{2}-4(-16)(3)}} {2(-16)}$

$t=\frac{-64(+/-)\sqrt{4,288}} {-32}$

$t=\frac{64(-)\sqrt{4,288}} {32}=-0.05\ sec$ ---> the time cannot be a negative number

$t=\frac{64(+)\sqrt{4,288}} {32}=4.05\ sec$

therefore

The ball will take 4.05 seconds to hit the ground.

4 0

3 years ago

Find the cost of papering the four walls of a room 16m long ,12m broad and 8 metres high with paper 2 metres wide at Rs 50 per m

daser333 [38]

If it's $50 a meter, then the answer is:
x is the cost per meter
16x + 12x + 8x + 2x

But that answer is 5,075,020,100 and that is a ridiculously high number. I hope this helps even if it doesn't answer the question.

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3 years ago

Directions: Solve for the variable in the following equations.

Harlamova29_29 [7]

Addition

A. X=12
B. S=10
C. Y=34
D. T=12

Subtraction

A. X=8
B. S=2
C. Y=14
D. T=6

3 0

3 years ago

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