MATHEMATICS HIGH SCHOOL

Solve for x.
4x-5/y=2z

Answers

Answer 1
Answer: So you don't know the value of x, y, or z; all you're told is to solve for x. This is not impossible (even though it may seem like it). Your answer will have several variables in it, but in algebra you won't always have the complete answer.
Start with the equation: 4x - 5 / y = 2z
The first thing you'll want to do to it is try to get x alone on one side.
4x - 5 / y = 2z
       +5       +5 --> 4x / y = 2z +5
                               *y           *y --> 4x = y (2z + 5)
                                                        /4              /4   --> x = (y (2z + 5)) / 4 
Your final answer will be: x = (y (2z +5)) / 4
Hope it makes sense to you!!
Answer 2
Answer: 4x- (5)/(y)=2z \n + (5)/(y)\ \ \ \ \ \ +(5)/(y) \n 4x=2z+ (5)/(y) \n /4\ \ \ \ \ /4 \n \boxed{x= (2)/(4)z+ (20)/(y)}

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Penjabaran dari 3×+2(4×-6)

Answers

3x+2(4x-6)
Distriuthing 2 through parentheses
3x+2*4x-2*6
3x+8x-2*6
3x+8x-12
11x-12
3x+2(4x-6)= \n \n 3x+8x-12= \n \n 11x-12 \n ------

what percent of a) Rs 80 is Rs 20 ? please give answer step by step and clearly please it's urgent ​

Answers

Answer:

16%

Step-by-step explanation:

80/100x  20/1 =  1600/100 cut0  n d16%a
i think its 16 percent

Which quotient will be negative?24 ÷ 6
-35 ÷ 7
-54 ÷ (-6)
3 ÷ (-1)

Answers

If you would like to know which quotient will be negative, you can find this using the following steps:

24 / 6 = 4
-35 / 7 = -5
-54 / (-6) = 9
3 / (-1) = -3

What is the vertex of the quadratic function f(x) = (x – 8)(x – 2)?

(
,
)

Answers

Answer:

( 5, -9 ) is the answer

Answer:

⅞2781x 3862

Step-by-step explanation:

i don't know but that is my answer ok kayat taposin Mona ang module mo

What is the y intercept of this line y+4=-4(x-2)Rewrite this equation in standard form
What is the x intercept of this line
What is the equation in standard form of a perpendicular line that passes through (5,1)
What is the x intercept of the perpendicular line
What is the equation in standard form of a parallel line that passes through(0,-2)
On the parallel line find the ordered pair where x=-2
Any help is greatly appreciated

Answers

y + 4 = -4 (x - 2)

Y - INTERCEPT:
y + 4 = -4 ((0) - 2)
y + 4 = -4 (-2)
y + 4 = 8
y = 4
(0, 4)

STANDARD FORM:
Ax + By = C
y + 4 = -4x + 8
4x + y + 4 = 8
4x + y = 4

X INTERCEPT:
(0) + 4 = -4 (x - 2)
4 = -4 (x - 2)
4 = -4x +8
-4 = -4x
x = 1
(1, 0)

PERPINDICULAR LINE:
y + (1) = (1/4) (x - (5))
y + 1 = 1/4x - 5/4
-1/4x + y + 1 = -5/4
-1/4x + y = -9/4
x - 4y = 9

X INTERCEPT OF PERPINDICULAR LINE:
x - 4(0) = 9
x - 0 = 9
x = 9
(9, 0)

PARALLEL LINE:
y + (-2) = -4 (x - (0))
y - 2 = -4x + 0
4x +  y - 2 = 0
4x + y = 2

ORDERED PAIR FOR PARALLEL LINE:
4(-2) + y = 2
-8 + y = 2
y = 10
(-2, 10)

A wooden plank is leaning against an outside wall of a building. The bottom of the plank is 3 ft from the wall. Find each of the following values, and show all your work. (a) Find the approximate length of the plank. Round to the nearest tenth of a foot. (b) Find the height above the ground where the plank touches the wall. Round to the nearest tenth of a foot.

Answers

(A) Find the approximate length of the plank. Round to the nearest tenth of a foot.
Given that the distance of the ground is 3ft.
In order to get the length of the plank,
we can use the this one.

cos 49 = ground / plank
cos 49 = 3 / plank
plank = cos 49 / 3
plank = 0.10 ft

(b) Find the height above the ground where the plank touches the wall. Round to the nearest tenth of a foot.

The remaining angle is equal to
angle = 180 - (90+49)
angle = 41

Finding the height.
tan 41 = height / ground
tan 41 = height / 3
height = tan 41 / 3
height = 0.05 ft.

(A) 0.10 feet
(B) 0.05 feet
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