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2 years ago

Given the Quadrilateral pictured below. What is the value of "X"?

Mathematics

1 answer:

sergiy2304 [10]2 years ago

5 0

Answer:

Value of x is used to consider unknown value.

Step-by-step explanation:

Value of x is used to consider unknown value. The letter “x” is commonly used in algebra to indicate an unknown value. It is referred to as a “variable” or, in some cases, a “unknown.” In x + 2 = 7, x is a variable.

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an employment agency specializing in temporary construction help pays heavy equipment operators $129 per day and general laborer

Studentka2010 [4]

To solve this problem you must apply the proccedure shown below:

1. Let's call $x$ to the number of equipment operators and $y$ to the numbers of laborers.

2. Based on the information given in the problem above, you can make a system of equation, as following:

$\left \{ {{129x+100y=3751} \atop {x+y=32}} \right.$

3. By applying the method of substitution, you can solve for $x$ from the second equation and substitute it into the first equation to solve for $y$ , as following:

$x=32-y\\ 129(32-y)+100y=3751\\ y=\frac{-377}{-29} \\ y=13$

4. Now, substitute the value of $y$ into the second equation to calculate $x$ :

$x=32-13\\ x=19$

The answer is: 19 equipment operators and 13 laborers.

8 0

3 years ago

What is slope? Provide two examples of realistic situations where slope manifests itself. In each example make sure to state wha

erastovalidia [21]

Answer:

1. A slope is a surface of which one end or side is at a higher level than another; a rising or falling surface.

"he slithered helplessly down the slope"

Some real life examples of slope include: in building roads one must figure out how steep the road will be. skiers/snowboarders need to consider the slopes of hills in order to judge the dangers, speeds, etc. when constructing wheelchair ramps, slope is a major consideration.

8 0

3 years ago

What’s the answerrr......

ASHA 777 [7]

Answer: -81/5 = improper fraction ; 16 1/5 = mixed number ; -16.2 = decimal form.

Step-by-step explanation:

(1) -26 - (-9 4/5)

Turn your mixed number into a improper fraction then find the least common denominator.

-26/1 + 49/5 = improper fraction, the reason we can't add yet is because the denominators aren't the same so we have to find the common denominator which will be 5.

-130/5 + 49/5 = -81/5 = The Improper Way!!

(2) 5/-81 = -16 R1 turns into a mixed number = -16 1/5 = Mixed Number Way

(3) just type in -81/5 in yo calculator and u gone get -16.2

BASICALLY YOUR ANSWER IS -81/5 THATS ALL U NEED TO KNOW!!!

6 0

4 years ago

1a) Use the − definition of the limit to prove lim→23+4=10.

True [87]

You're missing symbols in both of your expressions, but considering the first limit has a value of 10, I suspect you meant to write

$\displaystyle \lim_{x\to2}(3x+4) = 10$

(which is true) but unfortunately I am nowhere near as confident about what the second one is supposed to say. So one proof will have to do, unless you come around to editing your question.

The claim,

$\displaystyle \lim_{x\to2}(3x+4) = 10$

is to say that, for any given ε > 0, we can find δ (a number that depends on ε) such that whenever |x - 2| < δ, this ensures that |(3x + 4) - 10| < ε.

Roughly speaking: if x is close enough to 2, this translates to f(x) = 3x + 4 being close enough to 10. It's our job to figure out how close x needs to be to 2 in order that f(x) is close enough to 10, where the closeness to 10 is some given threshold.

We want to arrive at the inequality,

|(3x + 4) - 10| < ε

so suppose we work backwards. With some simplification and rewriting, we have

|3x - 6| = |3 (x - 2)| = |3| |x - 2| = 3 |x - 2| < ε

and so

|x - 2| < ε/3

which suggests that we should pick δ = ε/3.

Now for the proof itself:

Let ε > 0 be given, and let δ = ε/3. Then

|x - 2| < δ = ε/3

3 |x - 2| < ε

|3x - 6| < ε

|(3x + 4) - 10| < ε

and this completes the proof of the limit. QED

4 0

3 years ago

Which of the following is the graph of the equation y=2x+3?

wel

Your pic don't have the answer.
But I can tell you the correct points are : (0, 3) (-1 1/2, 0)

4 0

3 years ago