Solve for x: x-1/4=1/2 help please

Answers

Answer 1

Answer: $(x-1)/(4)=(1)/(2)\n\ncross\ multiply\n\n2(x-1)=1\cdot4\n\n2x-2=4\ \ \ /+2\n\n2x=4+2\n\n2x=6\ \ \ /:2\n\nx=6:2\n\nx=3$

Answer 2

Answer: (x-1)/4 = (1/2)
(x-1)/4 x 4 = (1/2) x 4
x-1+1 = 2+1
x =3

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Please do 3 & 4 and show work

Answers

Answer:

3. A=B=70°; C=D=110°

4. A=90°; C=48°

Step-by-step explanation:

Same-side angles of a trapezoid add to 180°.

___

3. (2x) +(x+15) = 180

3x + 15 = 180 . . . . simplify

x +5 = 60 . . . . . . . divide by 3

x = 55

A=B=(x+15)° = (55+15)° = 70°

C=D=2x° = 2·55° = 110°

4. You are given the values of one of the angles on each side, so the other can be found by subtraction:

A=180°-D = 90°

C = 180° -132° = 48°

1 . The lengths of the legs of a right triangle are 25 cm and 60 cm. What is the length of the hypotenuse?
A. 42.5 centimeters
B. 65 centimeters
C. 9.2 centimeters
D. 35 centimeters

D.

35 centimeters

Answers

$a^(2)+ b^(2) = c^(2)$ that is, hypotenuse.
Therefore, let the length of the hypotenuse be 'x.'
$25^(2)+ 60^(2)= x^(2)$
625+3600= $x^(2)$
4225= $x^(2)$
Therefore,
$√(4225)$ =x
65=x
The length of the hypotenuse is B.65 centimetres.

Find the average range. Round the mean and the average range to the nearest tenth. (Show all your work on scratch paper, then enter your answers below.) 3, 12, 15, 25, 30, 40

Answers

3, 12, 15, 25, 30, 40The range is the difference between the greatest and smallest values:
range = 40 - 3 = 37

Thee average is the sum of elements divided by the number of elements:
average = (3 + 12 + 15 + 25 + 30 + 40)/6
average = 125/6 = 20.83

Plz help me answer this i dont need an explanation

Answers

Answer:

$A((√(3) )/(2) ,(1)/(3))\n \nand\n\nB( 1, 1)$

Point A {√3 /2 ,1 /3}

Point B { 1, 1}

could not be the points on the unit circle.

Step-by-step explanation:

Unit circle :

A circle having a radius of one unit is called the unit circle.

Standard equation of circle given by

x² + y² = r²

r = radius of

∴ x² + y² = 1²

∴ x² + y² = 1

∴ $A((√(3) )/(2) ,(1)/(3))\n \nand\n\nB( 1, 1)$

Points are not on the unit circle as on substituting this x and y values

in the above equation we get

Left hand side ≠ Right-hand side

∴ $A((√(3) )/(2) ,(1)/(3))\n \nand\n\nB( 1, 1)$

could not be the points on the unit circle.

Solve each quadratic equation. (2x-1)(x+7)=1

Answers

So you foil out the problem and get

What is the coefficient of the variable in the expression 6 − 4x − 8 + 2?6
2
−4
−8

Answers

If you would like to find the coefficient of the variable in the expression 6 - 4x - 8 + 2, you can calculate this using the following step:

6 - 4x - 8 + 2 = 6 - 8 + 2 - 4x = - 4x

The correct result would be - 4.

Answer:

The coefficient is -4

Step-by-step explanation:

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