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3 years ago

12 less than a number is the same as 6, deceased by 8 times the number. Find the number

Mathematics

1 answer:

EastWind [94]3 years ago

4 0

12-x•8 if this helps

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Mr. Wonderful ran one lap around the park. He made 10 turns to the left and no turns to the right. What was the average number o

anygoal [31]

Answer:

Step-by-step explanation:

360/10=36

7 0

3 years ago

Read 2 more answers

6 = -5 -x solve for x

makkiz [27]

Answer:

Step-by-step explanation:

In algebra, the goal is always to isolate the variable, so that its value can be determined.

6 + x = -5

<h3>Step 2: Subtract 6</h3>

x = -11

<h3>Step 3: Check</h3>

6 = -5 - -11

6 = -5 + 11

6 = 6 ✔

<h3>Step 4: Answer</h3>

x = -11

I'm always happy to help :)

7 0

3 years ago

Evaluate the function f(x) at the given numbers (correct to six decimal places).

statuscvo [17]

Answer:

The values of given function are shown in the below table.

Step-by-step explanation:

The given function is

$f(x)=\frac{x^2-5x}{x^2-x-20}$

Simplify the given function.

$f(x)=\frac{x(x-5)}{x^2-5x+4x-20}$

$f(x)=\frac{x(x-5)}{x(x-5)+4(x-5)}$

$f(x)=\frac{x(x-5)}{(x+4)(x-5)}$

Cancel out the common factor.

$f(x)=\frac{x}{x+4}$

Substitute x=5.5 in the above equation.

$f(5.5)=\frac{5.5}{5.5+4}$

$f(5.5)=\frac{5.5}{9.5}$

$f(5.5)=0.57894736842$

$f(5.5)\approx 0.578947$

Similarly find the value for all values of x.

The values of given function are shown in the below table.

8 0

3 years ago

QUICK can anyone help me. Big points for right answers.

klemol [59]

No13.
Answer:
Cos(x+x)=cosx*cosx-sinx*sinx
=cos2(x)-sin2(x)
=(cosx+sinx)(cosx-sinx)

7 0

3 years ago

HELPPPPPPPPPPPPPP PLSSSSSS

pshichka [43]

Answer:

$x=5\sqrt{3}$

Step-by-step explanation:

Evaluate the Pythagorean Theorem for the triangle.

a² + b² = c²

5² + x² = 10²

25 + x² = 100

Subtract 25 from both sides.

x² = 75

Square root.

x = sqrt(75)

Expand the radical.

x = 5*sqrt(3)

8 0

3 years ago