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BARSIC [14]
3 years ago
5

Please help asap !!!​

Mathematics
1 answer:
Illusion [34]3 years ago
6 0

Answer: 2.)non function 3.)non function 4.) function 5.)non function 6.) non function 7.)function 8.)non function PART B 1.)non function 2.)function 3.) function

Step-by-step explanation: a function is when the domain (x) all each have one answer like (-2.6)(7,4)(8,6) there can be repeating ranges (y) just not domains.

A non function is when one domain (x) has multiple ranges(y) like (7,2)(-9,6)(7,9) the 7 repeats twice giving it two ranges, which causes it to be non functional. hope that helped :))

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Evaluate the function. h(x) = x2 – 5x; find f(4).
Reika [66]
If you mean h(4)
h(4)=(4)*2 -5(4)
=8-20
=-12
The answer will be-12
8 0
3 years ago
How do you do this question?
lesantik [10]

Answer:

33/16

Step-by-step explanation:

x = y⁴/8 + 1/(4y²), 1 ≤ y ≤ 2

dx/dy = y³/2 − 1/(2y³)

Arc length is:

s = ∫ ds

s = ∫ √(1 + (dx/dy)²) dy

s = ∫₁² √(1 + (y³/2 − 1/(2y³))²) dy

s = ∫₁² √(1 + y⁶/4 − ½ + 1/(4y⁶)) dy

s = ∫₁² √(½ + y⁶/4 + 1/(4y⁶)) dy

s = ∫₁² ½ √(2 + y⁶ + 1/y⁶) dy

s = ∫₁² ½ √(y³ + 1/y³)² dy

s = ∫₁² ½ (y³ + 1/y³) dy

s = ½ (y⁴/4 − 1/(2y²)) |₁²

s = ½ (16/4 − 1/8) − ½ (1/4 − 1/2)

s = 33/16

6 0
3 years ago
A PHN is studying the rate of H1N1 in the community. If there are five cases of H1N1 in the community of 1,000 people, what is t
BigorU [14]

Answer:

0.5%

Step-by-step explanation:

The prevalence rate shows the proportion of people that have a disease in a population and to be able to calculate it, you have to divide the number of people that have a disease by the population:

Prevalence rate=(5/1,000)*100

Prevalence rate=0.005*100

Prevalence rate=0.5%

According to this, the answer is that if there are five cases of H1N1 in the community of 1,000 people, the prevalence rate is 0.5%.

8 0
3 years ago
Sam is observing the velocity of a car at different times. After three hours, the velocity of the car is 51 km/h. After five hou
bija089 [108]
It's not obvious here, but you're being asked to find a linear equation for the velocity of the car, given two points on the line that represents this velocity.

Find the slope of the line segment that connects the points (3 hr, 51 km/hr) and (5 hr, 59 km/hr).  Graph this line.  Where does this line intersect the y-axis?  Find the y-value; it's your "y-intercept," b.

Now write the equation:  velocity = (slope of line)*t + b

The units of measurement of "slope of line" must be "km per hour squared," and those of the "y-intercept" must be "km per hour."

Part B:  Start with the y-intercept (calculated above).  Plot it on the vertical axis of your graph.  Now label the horizontal axis in hours:  {0, 1, 2, 3, 4, 5, 6}.  Draw a vertical line through t=6 hours.  It will intercept both the horiz. axis and the sloping line representing the velocity as a function of time.  Show only the part of the graph that extends from t=0 hours to t=6 hours.

6 0
3 years ago
At Simba Travel Agency, the price of a climbing trip to Mount Kilimanjaro includes an initial fee plus a
bezimeni [28]

Answer:

ijrj

Step-by-step explanation:

3 0
3 years ago
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