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3 years ago

Solve -1/2 + (3/4 times 4/9)

Mathematics

2 answers:

PilotLPTM [1.2K]3 years ago

7 0

Umm I got the same thing lol

kakasveta [241]3 years ago

4 0

Answer:

-1/6

Step-by-step explanation:

-1/2 + (3/4 * 4/9)

Parentheses first

Rewriting

-1/2 +(3/9 *4/4)

-1/2 +(1/3)

Getting a common denominator of 6

-1/2 *3/3 + 1/3 *2/2

-3/6 +2/6

-1/6

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AlexFokin [52]

Answer:

X + Y = 1 ------1

X - 2y = 4 ------2

Solving by substitution method

X = 4 + 2y -----3

Putting the value of X in equation 1

4 + 2y + y = 1

4 + 3y = 1

3y = 1 - 4

3y = (-3)

y = (-3) /3

Putting value of y in equation 3

X = 4 + 2(-1)

X = 4 - 2

4 0

3 years ago

The slope of a straight line equals the change in the value on the __________ axis __________ by the change in the value of the

Alenkinab [10]

Answer:

The slope of a straight line equals the change in the value on the <u>Vertical</u> axis <u>Divided</u> by the change in the value of the other axis measured between any two points on the line.

Step-by-step explanation:

Consider the provided information.

The slope of a straight line can be calculated as:

$m=\frac{Rise}{Run}$

Where, Rise is the the change in the value on the vertical axis which is divided by the Run. Run is the change in the value of the other axis.

Therefore, the complete sentence is:

5 0

3 years ago

A bridge is sketched in the coordinate plane as a parabola represented by the equation h=40-0.01x2, where h refers to the height

ElenaW [278]

Answer:

The length of the bridge is 126.492 feet.

Step-by-step explanation:

Let $h(x) = 40-0.01\cdot x^{2}$ , where $x$ is the position from the middle of the bridge, measured in feet, and $h(x)$ is the height of the bridge at a location of x feet, measured in feet. In this case, the length of the bridge is represented by the distance between the x-intercepts of the parabola, which we now find by factorization: