All categories

3 years ago

To determine a change of elevation on a topographic map what type of math would you use?

1 answer:

5 0

An easy to remember equation for finding change in elevation as a decimal is rise over run.. as an example, let’s say the rise is 2 and the run is 6.. so you take 2 over 6 (or2/6) and divide .. so you’re answer is division my friend hope this helps

You might be interested in

two fields at a state park are 1,000 meters from each other. on a map the two fields are 8 centimeters apart. what scale is the

nataly862011 [7]

Answer:

1 centimeter on the map=125 meters

Step-by-step explanation:

We need to find how many meters for 1 centimeter, because that is the lowest value.

So, divide 8 by 8 to get 1 centimeter.

To get its equal distance, divide 1000 by 8 as well.

1000/8=125

Hope this helps!

8 0

4 years ago

For a certain automobile,

emmasim [6.3K]

Answer:

The answer is

a) 2,128 miles per gallon at 40,36 miles per hour

b) 1,388 miles per gallon at 60 miles per hour

Step-by-step explanation:

Let's find the extreme points of M(x) for 30≤x≤60. M(x) simplified by dividing to 7.8.

$M(x) = -1,92.10^-3x^2+0,155x-1$

To find extreme points we find tangent of M(x) and equal it to 0.

$M'(x) = -3,84.10^-3x+0,155=0$

therefore x= $\frac{-0,155}{-3,84.10^-^3} = 40,36$

This divides our x to 2 different range 30≤x≤40,36 and 40,36≤x≤60

Now we pick a number and investigate from the ranges

30≤x≤40,36 → x = 35 → M'(35) = 0,0206 which is > 0 and that means M is increasing

40,36≤x≤60 → x = 45 → M'(45) = -0,0178 which is < 0 and that means M is decreasing

Next let's look at critical points

x M(x) Before After Decision

30 1,922 - ↑ Local Minimum Point

40,36 2,128 ↑ ↓ Local Maximum Point

60 1,388 ↓ - Local Minimum Point

As we can see (30, 1,922) and (60, 1,388) are local minimum points and (40,36 , 2,128) is the local maximum point.

Since (60 , 1,388) is the lowest local minimum point it is the absolute minimum point and (40,36 , 2,128) is the absolute maximum point.

6 0

3 years ago

If a is a real number, which property is shown by a = a?

Alja [10]

"Reflexive Property" is the property shown as a = a

Hope this helps!

6 0

3 years ago

Read 2 more answers

The smaller rectangle is a 1/2 scale drawing of the original figure. Use the drop-down menus to show the missing dimensions of t

MAXImum [283]

Answer:

L1 = 18 cm

W1 = 14 cm

A1 = 252 cm²

Step-by-step explanation:

Since the small rectangle is ½ the scale drawing of the original figure, therefore the dimensions of the smaller rectangle would be half of that of the original.

Thus:

Length (L) of the original = 36 cm

Length (L1) of the smaller rectangle = ½(36) = 18 cm

Width (W) of the original = 28 cm

Length (W1) of the smaller rectangle = ½(28) = 14 cm

Area (A1) of the smaller rectangle = L1 × W1 = 18 × 14 = 252 cm²

6 0

3 years ago

What time is 5 3/4 hours after 11:32 pm? Please show work, thank you.

poizon [28]

we have to first convert fraction of hours into minutes

1 hour is equivalent to 60 minutes

then 3/4 hour is - 3/4 of 60

when the of function is used we have to multiply the 2 numbers

then $\frac{3}{4} * 60 = \frac{3*60}{4} = \frac{180}{4} = 45$

3/4 of an hour is equivalent to 45 minutes

then we have to add 5 hours and 45 minutes to 11.32 pm

add 5.45 to 11.32

11.32

5.45 +

-------

16.77

then its 16 hours and 77 minutes

an hour has only 60 minutes so we subtract 60 minutes from 77 minutes and add that hour to 16 hours

16 hours + 1 = 17 hours

77 minutes - 60 minutes = 17 minutes

17 hours 17 minutes

time is given in pm therefore its a 12 hour clock

so we have to subtract 12 hours from 17 hours 17 minutes

17.17 hours - 12 hours = 5.17

the new time is 5.17 am of the next day

8 0

3 years ago

Read 2 more answers