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horrorfan [7]
3 years ago
9

If a bus travels 20 km in 30 minutes. What is the average speed of the bus?

Mathematics
2 answers:
sattari [20]3 years ago
4 0
<span>So we need to find the average speed of the bus that travels 20 km in 30 minutes. Average speed is defined as: Average speed=distance travelled/time taken or: v=s/t. We know s=20 km and t=30 minutes=0.5h. So after we input our numbers in the equation, we get: v=20km/0.5h=40km/h. So the correct answer is C) 40km/h.</span>
tatiyna3 years ago
4 0

Answer:c

Step-by-step explanation:

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Could you please answer this precisely. Thank you!
OleMash [197]

The mathematical functions (equations) are matched to their graph line respectively as follows:

  • y = 960 - 78x: purple straight line.
  • y = 8·3^x: violet line curve that slopes to the left.
  • y = 960·(1/2)^x: green line curve that slopes to the right.

<h3>What is a linear function?</h3>

A linear function can be defined as a type of function whose equation is graphically represented by a straight line on the cartesian coordinate. Mathematically, a linear function is given by this equation:

y = mx ± c.

<h3>What is an exponential function?</h3>

An exponential function can be defined as a type of mathematical function whose values are generated by a constant that is raised to the power of the argument. Mathematically, an exponential function is represented by this formula:

f(x) = keˣ

Next, we would match each of the mathematical functions (equations) to their graph line respectively as follows:

  • y = 960 - 78x: purple straight line.
  • y = 8·3^x: violet line curve that slopes to the left.
  • y = 960·(1/2)^x: green line curve that slopes to the right.

Read more on graphs here: brainly.com/question/24298987

#SPJ1

3 0
2 years ago
Find the length of the longest line segment that can be drawn on a rectangular board 3.07 m by 2.24 m.
Luden [163]

Step-by-step explanation:

For rectangle

l=3.07m

b=2.24m

so longest side that can be drawn is diagonal of rectangular board

=squareroot l^2+b^2

=squareroot3.07^2+2.24^2

=squareroot9.4249+5.0176

=squareroot14.4425

=3.80

So longest line that can be drawn in rectangular board is 3.80m

4 0
3 years ago
Mark invests $8,008 in a retirement account with a fixed annual interest rate of 2% compounded 6 times per year. What will the a
love history [14]

Given:

Principal value = $8,008

Rate of interest = 2% compounded 6 times per year.

Time = 16 years

To find:

The account balance after 16 years.

Solution:

The formula for amount is:

A=P\left(1+\dfrac{r}{n}\right)^{nt}

Where, P is principal, r is the rate of interest, n is the number of times interest compounded in an year and t is the number of years.

Putting P=8,008, r=0.02,n=6,t=16 in the above formula, we get

A=8008\left(1+\dfrac{0.02}{6}\right)^{6(16)}

A=8008\left(\dfrac{6.02}{6}\right)^{96}

A=11022.1721148

A\approx 11022.17

Therefore, the account balance after 16 years is $11022.17.

4 0
3 years ago
Perform the indicated operation. 2/3 - 5/8<br><br> 1. 5/12<br> 2. 5/6<br> 3. 1/24
aksik [14]
Convert both fractions to get a LCD, then subtract
Answer is 3. 1/24
8 0
3 years ago
Read 2 more answers
Really confused on how to approach this problem.​
kkurt [141]

Step-by-step explanation:

For this Q, you should draw a triangle to help you with the values.

cos x =

\frac{ \sqrt{2} }{2}

csc x =

\frac{2}{ \sqrt{2} }

tan x = sin x/ cos x

= 1

cot x = 1

sec x =

\frac{ \sqrt{2} }{2}

x = 45 degrees

6 0
3 years ago
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