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3 years ago

Which function is represented by the graph below?

Mathematics

2 answers:

strojnjashka [21]3 years ago

8 0

Answer:

Equation: $f(x)=3^x$

A is correct

Step-by-step explanation:

Given: The graph of a function on x-y coordinate plane.

y-intercept: (0,1)

Graph starts from II quadrant touches x-axis at infinity.

End in I quadrant increases gradually.

This is property of exponential function.

$y=ab^x$

y-intercept: (0,1)

$1=a$

Passing point: (1,3)

$3=b^1$

b=3

Equation of graph:

$y=3^x$

Hence, The equation of given graph is $y=3^x$

Zina [86]3 years ago

5 0

This would be an exponential graph and non of the answers are exponential. but the graph would be f(x)=3^x

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A car whose acceleration is constant reaches a speed of

Sergeu [11.5K]

Answer:

12.5 s

Step-by-step explanation:

If acceleration is constant, speed is proportional to time. To increase the speed by 50 km/h, the car will need an additional time given by ...

t/(50 km/h) = (20 s)/(80 km/h)

t = (20 s)(50/80) . . . . . multiply by 50 km/h

t = 12.5 s

It will take 12.5 more seconds for it to reach a speed of 130 km/h.

3 0

3 years ago

Read 2 more answers

In the right triangle shown, A= 30° and AB = 8.

zloy xaker [14]

Answer:

$BC=4\ units$

Step-by-step explanation:

The picture of the question in the attached figure

we know that

$sin(30^o)=\frac{BC}{AB}$ ----> by SOH (opposite side divided by the hypotenuse)

we have

$AB=8\ units\\\\sin(30^o)=\frac{1}{2}$

solve for BC

$BC=sin(30^o)(AB)$

substitute the values

$BC=(\frac{1}{2})(8)$

$BC=4\ units$

4 0

2 years ago

Find the area of the shaded region.

Papessa [141]

Answer:

21.46 cm²

Step-by-step explanation:

because the question want only for the SHADED REGION but NOT AREA OF THE SQUARE

(if we just multiply 10x10. you will get the area of a square which is hundered)

To find the shaded region:

1. area of a circle is πr² (we have 4 circle there)

2. Find the area of all circle

# how do we know the radius?

- half of 10 is 5

- 5 is the diameter of each circle

- the radius is half of 5 which is 2.5

- π(2.5)² = 25/4π (area of 1 circle)

3. since we have 4 circle then, 25/4π x 4 = 25π

4. the area of the square is 100cm²

5. we want the shaded region so we have to minus the area of the circle

6. 100 - 25π (use your calculator to find the answer)

answer should be 21.46 cm²

(hope this helps)

8 0

3 years ago

Identify whether the following equation has a unique solution, no solution, or infinitely many solutions.

KengaRu [80]

Answer:

Step-by-step explanation:

i can help

Step 1

4( − 11) = 15 − 4 Solving

Step 2

4( − 11) = 15 − 4 Simplify

15-4

-44=11

Answer

Unique solution

Hope this helps

4 0

2 years ago

A circle's radius is 14 centimeters.

spayn [35]

Answer:

Circumference of circle = 87.92 centimeter

Step-by-step explanation:

In the given question;

Radius of circle = 14 centimeters

Value of π = 3.14

Find:

Circumference of circle

Computation:

⇒ Circumference of circle = 2πr

where r = Radius of circle

⇒ Circumference of circle = 2(3.14)(14)

⇒ Circumference of circle = (6.28)(14)

Circumference of circle = 87.92 centimeter

4 0

3 years ago