MATHEMATICS HIGH SCHOOL

Find x pleaseeeee help

Answers

Answer 1

Answer:

Answer:

x=4

Step-by-step explanation:

Answer 2

Answer:

Answer:

x = 4

Step-by-step explanation:

Its been awhile since I have done geometry but I believe its correct:

1) 4(4) + 8 = 24

2) Since it is an equilateral triangle all sides are equal.

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The perimeter of a rectangular is P = 2L + 2W. Solve for L if the perimeter is 220 ft and the length is 10 ft more than the width.

Answers

220= 2(10+x) + 2x
220= 20+2x+2x
220= 20+4x
200= 4x
50= x

if L is 10 more than W and the width= 50, than the length (L) would be 60 ft.

Solve the inequalitiesg + 2 - 2 (g - 16) > 0

A. g > -30

B. g < -30

C. g > 34

D. g < 34

Answers

g + 2 - 2 (g - 16) > 0
g + 2 - 2g + 32 > 0
-g + 34 > 0
g < 34

Answer:

Your answer should be D. g < 34

Step-by-step explanation:

Simply use the order of operations.

$g + 2 - 2 (g - 16) > 0\ng + 2 -2g + 32 > 0\ng-2g+2+32>0\n-g+34-34>0-34\n-g-1>-34/-1$

Remember, when dealing with a negative in an inequality, your sign will flip/change the opposite direction.

$g<34$

Solve each problem by using the quadratic formula. Write solutions in simplest radical form. 2x2 – 2x – 1 = 0

Answers

When you have a quadratic in the form ax² + bx + c = 0, you can solve for x using the quadratic formula, which is as follows:
$x=(-b\pm√(b^2-4ac))/(2a)$
In this case, a = 2, b = -2, and c = -1. Let's plug these in.
$x=\frac{-(-2)\pm√((-2)^2-4(2)(-1)){2(2)}$
Simplify...
$x=\frac{2\pmsqrt{4+8}}4$

$x=\frac{2\pmsqrt{12}}4$

$√(12)=√(2*2*3)=2√(3)$

$x=\frac{2\pm2√(3)}4$

$x=\frac{1\pm√(3)}2$

$\boxed{x=\frac{1+√(3)}2\ or\ \frac{1-√(3)}2}$

2x² - 2x - 1 = 0
x = -(-2) ± √((-2)² - 4(2)(-1))
   2(2)
x = 2 ± √(4 + 8)
      4
x = 2 ± √(12)
4
x = 2 ± 2√(3)
      4
x = 1 ± √(3)
   2
x = 1 + √(3) U x = 1 - √(3)
   2 2

If y=2x-3 were changed to y=2x+5 , how would the graph of new function compare with the original?

Answers

The new graph would have the same slope (2) as the original one,
but its y-intercept would be [ 5 - (-3) ] = 8 higher.

The new straight line would be parallel to the original straight line,
and they would be 8 units apart everywhere.

Answer: it would be shifted up

The current cost of a box of cereal is $3.39. At the time of this writing, the CPI for cereal is 289.7. What was the cost of a box of cereal in 1983 to the nearest cent?

Answers

To solve this problem we have to first identify the data that we need and is important. You can arrange it like this:

Current Cost of Cereal: $3.39

CPI: 289.7

To find the cost of a box of cereal in 1983 we will need to use the following formula:

Cost in Base Year = Current Cost/CPI*100

Replace the data in the formula and we get the following:

1983 = 3.39/289.7*100

In 1983 the cost of a box of cereal was $1.170176044

I hope this helps, Regards.

Please i need help ASAP!!! Extra points!!The cost of 3-D movie tickets is $12 for 1 ticket,$24 for 2 tickets, and $36 for 3 tickets. Determine whether the cost is proportional to the number of tickets by graphing on the coordinate plane.Explain your reasoning.

Answers

Answer:

yes the cost is proportional to the number of tickets

Step-by-step explanation:

for each 1 ticket added, it is $12 more

you can graph it by using the equation y=12x where x is the amount of tickets and the y-intercept is (0,0)

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