All categories

4 years ago

HELP QUICK IM GIVING 21 POINTS AND A BRAINLIEST AWARD

Mathematics

2 answers:

Andrei [34K]4 years ago

6 0

Answer:

10:45

Step-by-step explanation:

v...speed = 40 mph

s...distance = 60

t...time

if he was 15 min late he arrived at 12:15

v=s/t => t=s/v

t = 60/40 = 1.5 h = 1h and 30 min

if he arrived at 12:15 and he was driving for an hour and a half just substract

12:15 - 1:30 = 11:15 - 0:30 = 10:45

he left at 10 45

iren [92.7K]4 years ago

5 0

V...speed = 40 mph
s...distance = 60
t...time

if he was 15 min late he arrived at 12:15

v=s/t => t=s/v
t = 60/40 = 1.5 h = 1h and 30 min

if he arrived at 12:15 and he was driving for an hour and a half just substract
12:15 - 1:30 = 11:15 - 0:30 = 10:45

he left at 10 45

You might be interested in

You’re piloting an airplane to prepare for landing you change the planes altitude from a meters to c meters.

soldier1979 [14.2K]

Answer:

|a-c| meters

Step-by-step explanation:

If I am piloting an airplane to prepare for landing, I change the plane's altitude from a meters to c meters, then the expression that represents the distance between two altitudes is given by |a-c| meters, not by |a+c|.

For, example if the altitude of the plane changes from 1000 meters to 500 meters for preparing for landing then the distance between those two altitudes is |1000 - 500| = 500 meters. (Answer)

But using the expression |a+c|, I will get the wrong answer as |1000 + 500| = 1500 meters.

8 0

4 years ago

Read 2 more answers

I need help please !!!!!

olga nikolaevna [1]

I think it’s D is the answer

6 0

3 years ago

What is the value of 7 in 506,087

statuscvo [17]

The 7 in 506,087 is in the ones place.

7 0

3 years ago

Read 2 more answers

Angle RST is a right angle. Angle RSU has a measure of 25°.

IrinaK [193]

Since angle RST is a right angle, it has a measure of 90°.
Angle RSU could either be inside or outside the right angle.
If Angle RSU is inside, the measurement of Angle TSU is:
90°- 25° = 65°

If Angle RSU is outside, the measurement of Angle TSU is:
90° + 25° = 115°

7 0

3 years ago

Read 2 more answers

Please help me with this

Shalnov [3]

<h2>Exponential Functions</h2>

Exponential functions are typically organized in this format:

$f(x) = a*c^x$

To find the equation given the graph of an exponential function:

Identify the horizontal asymptote
⇒ <em>asymptote</em> - a line towards which a graph appears to travel but never meets
⇒ If the horizontal asymptote is not equal to 0, we add this at the end of the function equation.
Identify the y-intercept
⇒ This is our <em>a</em> value.
Identify a point on the graph and solve for <em>c</em>

<em />

<h2>Solving the Question</h2>

Identify the horizontal asymptote

In this question, it appears to be x = 0.

Identify the y-intercept

The y-intercept is the value of <em>y</em> at which the graph appears to cross the y-axis. In this graph, it appears to be 100. This is our <em>a</em> value. Plug this into $f(x) = a*c^x$ :

$f(x) = 100*c^x$

Solve for <em>c</em>

We can use any point that falls on the graph for this step. For instance, (1,50) appears to be a valid point. Plug this into our equation and solve for <em>c</em>:

$f(x) = 100*c^x\\50 = 100*c^1\\50 = 100*c\\\\c=\dfrac{1}{2}$

Plug <em>c</em> back into our original equation:

$f(x) = 100*(\dfrac{1}{2})^x$

<h2>Answer</h2>

$f(x) = 100*(\dfrac{1}{2})^x$

6 0

2 years ago