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Rudiy27
3 years ago
12

-6x -6= help pls i don’t understand

Mathematics
1 answer:
makkiz [27]3 years ago
8 0

The answer here is x=-1

                                             Explanation

___________________________________________________________

-6x -6 = 0

-6x - 6 +6 = 0+6

-6x = 6

-6x/-6 = 6/-6

x = -1

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What is the angle of depression from the start of a 6-foot high access ramp that ends at a point 40 feet away along the ground?
Mars2501 [29]

Answer:

<h3>8.5 degrees</h3>

Step-by-step explanation:

The set up will give a right angles triangle;

Given

The height of the ramp (opposite) = 6 foot

distance away along the ground = 40 feet (adjacent)

Required

Angle of depression theta

Using the TOA identity;

tan theta = opposite/adjacent

tan theta = 6/40

tan theta = 0.15

theta = tan^-1{0.15}

theta =8.53 degrees

hence the angle of depression to nearest tenth of a degree is 89.5 degrees

3 0
4 years ago
a system of linear equations is given by the tables. one of the tables is represented by the equation y=-1/3x+7. The equation th
Jet001 [13]

Answer:

1). Other line is, y = \frac{1}{3}x+5

2). Solution of the system is (3, 6)

Step-by-step explanation:

From the table (1),

Let the equation of the line from the given table is,

y - y' = m(x - x')

Where m = slope of the line

(x', y') is a point lying on the line.

Choose two points from the table which lie on the line.

Let the points are (0, 5) and (3, 6)

Slope = m = \frac{y_{2}-y_{1}}{x_{2}-x_{1}}

                 = \frac{5-6}{0-3}

                 = \frac{1}{3}

Therefore, equation of the will be,

y - 5 = \frac{1}{3}(x-0)

y = \frac{1}{3}x+5 -------(1)

Let the other line from the table (2) is,

y - y" = m'(x - x")

Two points taken from this table are (0, 7) and (3, 6)

m' = \frac{7-6}{0-3}

    = -\frac{1}{3}

Equation of the line will be,

y - 7 = -\frac{1}{3}(x-0)

y = -\frac{1}{3}x+7 -------(2)

Therefore, equation of the other line will be, y = \frac{1}{3}x+5

By adding equations (1) and (2),

y + y = -\frac{1}{3}x+\frac{1}{3}x+5+7

2y = 12

y = 6

From equation (1),

6 = \frac{1}{3}x+5

\frac{1}{3}x=7-6

x = 3

Therefore, solution of the system is (3, 6).

6 0
4 years ago
1. Solve this please
SVETLANKA909090 [29]
14m because 3*4 = 12 and 1*1 = 1 and 1 + 1 + 12 is 14
6 0
3 years ago
Read 2 more answers
How do you tell if an equation is linear and nonlinear
FinnZ [79.3K]
Linear it make a line non linear doesn’t make a line
5 0
3 years ago
A ball is thrown from a height of 139 feet with an initial downward velocity of 15 ft/s. The ball's height h (in feet) after t s
ella [17]

Answer:

t = 2.52 seconds

Step-by-step explanation:

h=139-15t-16t^2

We want to know when the ball hits the ground

That would be when h=0

0 = 139-15t-16t^2

We can use the quadratic formula to find t

t = -b ± sqrt(b^2-4ac)

       ----------------------

          2a

where a = -16   b = -15  and c = 139

t = -(-15) ± sqrt((-15)^2-4(-16)139)

       ----------------------

          2(-16)

t = (15) ± sqrt(225+8896)

       ----------------------

          -32

t = (15) ± sqrt(9121)

       ----------------------

          -32

t = 15+ sqrt(9121)                       t = 15- sqrt(9121)

     --------------------   or                    -------------------  

           -32                                               -32

        -3.453247707        or              2.515747707

Since time cannot be negative

 2.515747707

Round to the nearest hundredth

t = 2.52 seconds

6 0
3 years ago
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