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marissa [1.9K]
3 years ago
10

How to do this and the answers.

Mathematics
1 answer:
ANEK [815]3 years ago
8 0

Answer:

I'm gonna estimate about 240 miles one way

Explanation:

You have a guide on the bottom right-hand corner of the map that tells you how many miles per that amount of distance. As you can see it is split off into tiles incremented by 30. What you do is take a ruler and measure that guide. For example, let's say the map is 9.5cm and the guide is 2cm per 60 miles. The next thing I would do is to measure the distance in centimeters of the physical map between point a and point b which is 8cm. Finally, I convert the centimeters into miles which is (8/2)*60 = 240.

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1:750 scale model of the Sydney Opera House after a trip to Australia. The length of the model is 24.4 centimetrers. Find the ac
vesna_86 [32]

Answer:

183 meters

Step-by-step explanation:

A 1:750 scale model means that each cm on the model corresponds to 750 cm of the actual Sydney Opera House. If the model is 24.4 centimeters long, the actual Opera House has a length of:

x = 24.4*750\\x=18,300\ cm\\x=183\ m

The actual length of the Sydney Opera House is 183 m.

6 0
3 years ago
Need help with linear systems
Lera25 [3.4K]

Answer:

The minimum value of C is 20

Step-by-step explanation:

we have

2x+3y\geq 24 ----> constraint 1

4x+y\geq 38 ----> constraint 2

x\geq 0 ----> constraint 3

y\geq 0 ----> constraint 4

using a graphing tool

The solution is the shaded area

see the attached figure

To find the minimum value of C evaluate the vertices (9,2) and (12,0) of the solution area in the objective function C=2x+y

so

For x=9, y=2 ---> C=2(9)+2=20

For x=12, y=0 ---> C=2(12)+0=24

therefore

The minimum value of C is 20

7 0
3 years ago
A bottlenose dolphin is 10 feet below sea level. Then it begins to dive at a rate of 9 feet per second. What is the equation of
a_sh-v [17]
Y = -9x - 10
The dolphin is diving 9 feet per second so the rate of change is -9.
It's also 10 feet below sea level which makes the y-intercept -10
Hope this helped!
7 0
3 years ago
Read 2 more answers
What is -1 times x to the second power
sdas [7]
-1*x^2= -1

-1*(1)^2

-1*1= -1
7 0
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The Yukon River is 1,980 miles long, and twice as long as the Platte River. How many miles long (l) is the Platte River?
larisa [96]
990 miles ....
1980 divided by 2
8 0
3 years ago
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