Find f(x) if f(x-2) =2x-4

Answers

x = 21

Step-by-step explanation:

We know: The sum of the triangle angle measures is 180°.

Therefore we have the equation:

$100+3x+x-4=180\qquad\text{combine like terms}\n\n(3x+x)+(100-4)=180\n\n4x+96=180\qquad\text{subtract 96 from both sides}\n\n4x=84\qquad\text{divide both sides by 4}\n\nx=21$

Sinxtanx=secx-cosx Please help me solve it

Answers

$sinx.tanx=secx-cosx\n \n sinx.(sinx)/(cosx)=(1)/(cosx)-cosx\n \n (sin^2x)/(cosx)=(1-cos^2x)/(cosx)\n \n (sin^2x)/(cosx)=(sin^2x)/(cosx)$

What percent of 84 is 9?

Answers

If you would like to know what percent of 84 is 9, you can calculate this using the following steps:

x% of 84 is 9
x% * 84 = 9
x/100 * 84 = 9
x/100 = 9 / 84
x = 9/84 * 100
x = 10.71

The correct result would be 10.71%.

The percentage of the number 84 which equals 9 is 75/7 percent.

How to determine a percentage?

Given the parameter:

"9 is what percent of 84"

To find what percent of 84 is 9, you can use the following formula:

Percent = (Part / Whole) × 100

Where:

Part = 9 (the smaller value you want to find the percentage of)

Whole = 84 (the larger value)

Now, plug in the values:

Percent = (9 / 84) × 100%

Simplifying we get:

Percent = (9 / 21) × 25%

Percent = (75/7)%

Therefore, 9 is 75/7 percent of 84.

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Determine whether the two lines are parallel, perpendicular, coinciding, or only intersecting.y = - 3x + 8
6x + 2y =1
Choose the correct answer below.
parallel
only intersecting
perpendicular
coinciding

Answers

Answer:

The lines are parallel

Final answer:

The two lines, y = -3x + 8 and 6x + 2y = 1, are parallel because they both have the same slope of -3.

Explanation:

To determine whether the two lines are parallel, perpendicular, coinciding, or only intersecting, one must look at their slopes. The slope of a line in the form y = mx + b is given by 'm'.

If two lines have the same slope, they are parallel. If the product of their slopes is -1, they are perpendicular. If the lines have the same slope and same y-intercept, they coincide.

{p}The first line given is y = -3x + 8, so its slope is -3.

The second line, 6x + 2y = 1, needs to be rearranged into the form y = mx + b. If you subtract 6x from both sides and divide by 2, you get y = -3x + 0.5. Thus, the slope of the second line is -3 as well.

Since both lines have the same slope of -3, they are parallel.

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Find the value of 42 + 6 ÷ 2.

Answers

If you do order of operations, you divide 6 and 2 getting 3. Add 42 and 3. 45 is the answer.

Answer: the answer is 7

Not sure what to do here? Naomi has 50 red beads and white beads. The number of red beads is 1 more than 6 times the number of white beads. How many red beads does Naomi have?

Answers

Naomi has 43 red beads. 7 white beads times 6 equals 42. 42 plus 1 equals 43. Sometimes you just need to guess and check using common sense. Otherwise an equation would be x+(6x+1)=50, which would be 7x+1+50. Then you simplify to 7x=49 and get x=7. Then multiply by 6 and add 1 to get 43

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