Answer:
![\boxed{ \text{Option \: D}}](https://tex.z-dn.net/?f=%20%5Cboxed%7B%20%20%5Ctext%7BOption%20%5C%3A%20D%7D%7D)
Step-by-step explanation:
All the relations are not functions. We can determine ( identify ) whether a relation is function or not by drawing a vertical line intersecting the graph of the relation. This is called vertical line test.
- If the vertical line intersects the graph of a relation at one point , the relation is a function .
- If it cuts at more than one point , it is not a function. It means that if there are more points of the graph of a relation of a vertical line , same first component ( pre - image ) has more images ( second component ) which is not the function by definition.
--------------------------------------------------
Let's check all of the options :
☐ Option A :
- The vertical line cuts the graph at two points. So , the graph does not represent a function.
☐ Option B
- No! This is also not a function as the vertical line cuts the graph at two points.
☐ Option C
- Nah! This too can't be called a function as the vertical line cuts the graph at two points.
☑ Option D
- Yep! The vertical line cuts the graph at one point. Thus , the graph represents a function.
Yayy!! We found our answer. It's ' Option D '.
Hope I helped ! ツ
Have a wonderful day / night ! ♡
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Answer:
Therefore the height of the tower is 116.75 m.
Step-by-step explanation:
Given that a pole that is 2.6 m tall casts a shadow that is 1.03 m long.
Here the height of a object directly proportional to the shadow. It means
Height of the object ∝ shadow
Height of the object= k.shadow
[k is the proportional constant.]
[Height of object is denoted by h and shadow is denoted by s]
Then,
[h₁ is the height of the pole and s₁is the length of the shadow]
Again for the tower
[h₂ is the height of the tower and s₂ is the length of the shadow]
Therefore,
![\frac{h_1}{s_1}=\frac{h_2}{s_2} =k](https://tex.z-dn.net/?f=%5Cfrac%7Bh_1%7D%7Bs_1%7D%3D%5Cfrac%7Bh_2%7D%7Bs_2%7D%20%3Dk)
............(1)
Given
,
and
Putting the value of
and
equation (1)
![\frac{2.6}{1.03}=\frac{h_2}{46.25}](https://tex.z-dn.net/?f=%5Cfrac%7B2.6%7D%7B1.03%7D%3D%5Cfrac%7Bh_2%7D%7B46.25%7D)
[cross multiplication]
![\Rightarrow h_2 = \frac{2.6\times 46.25}{1.03}](https://tex.z-dn.net/?f=%5CRightarrow%20h_2%20%3D%20%5Cfrac%7B2.6%5Ctimes%2046.25%7D%7B1.03%7D)
![\Rightarrow h_2= 116.75](https://tex.z-dn.net/?f=%5CRightarrow%20h_2%3D%20116.75)
Therefore the height of the tower is 116.75 m.
Answer:
x=18-2/5y
y=-5/2x+45
Step-by-step explanation:
5x+2y=90
Nosotros queremos resolver para x o y
5x=90-2y
x=18-2/5y
o
2y=90-5x
y=-5/2x+45
Answer:
where are the choices
Step-by-step explanation:
The given expression is a (A) linear expression.
<h3>
What are linear expressions?</h3>
- A linear expression is an algebraic expression in which each term is a constant or a variable raised to the first power.
- To put it another way, none of the exponents may be greater than 1. x2 is a variable raised to the second power, whereas x is a variable raised to the first power.
- A constant is represented by the number 5.
- Reduce the equation as much as feasible to the form y = mx + b. Examine your equation for exponents.
- It is nonlinear if it has exponents. Your equation is linear if it contains no exponents.
- 2x - 3 = 0, 2y = 8, m + 1 = 0, x/2 = 3, x + y = 2, 3x - y + z = 3 are some instances of linear equations.
Therefore, the given expression is a (A) linear expression.
Know more about linear expressions here:
brainly.com/question/14323743
#SPJ4
The correct question is given below:
Classify the expression: 5x 2.
(A) linear expression
(B) quadratic expression
(C) cubic expression
(D0 quartic expression