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2 years ago

1. A map has a scale 3 cm: 4 miles. What is the actual distance between two cities that are

Mathematics

1 answer:

Vera_Pavlovna [14]2 years ago

6 0

The actual distance between the two cities are 30 miles.

<h3>What is a scale drawing?</h3>

A scale drawing is a smaller diagram of a larger image / building / object. The scale drawing is usually reduced at a constant dimension

<h3>What is the actual distance between the two cities?</h3>

The actual distance between the two cities = (22.5 X 4) / 3 = 30 miles

To learn more about scale drawings, please check: brainly.com/question/147532

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(x+16)²=12 plz help me and show work

Readme [11.4K]

Answer:

The answer is $x=-16$ ± $2\sqrt{3}$ in exact form or $x=-12.535898$ , $x=-19.464102$ in decimal form.

Step-by-step explanation:

To solve this problem, start by moving all terms to the left side of the equation and simplify. Simplify the equation by subtracting 12 from both sides of the equation and squaring $x+16$ , which will look like $x^{2} +32x+256-12=0$ . Next, simplify the equation again, which will look like $x^{2} +32x+244=0$ .

Then, use the quadratic formula to find the solutions. The quadratic formula looks like $\frac{-b(+-)\sqrt{b^{2}-4ac } }{2a}$ .

For this problem, the quadratic variables are as follows:

$a=1$

$b=32$

$c=244$

The next step is to substitute the values $a=1$ , $b=32$ , and $c=244$ into the quadratic formula and solve. The quadratic formula will look like $\frac{-32(+-)\sqrt{32^2-4(1*244)} }{2*1}$ . To simplify the equation, start by simplifying the numerator, which will look like $x=\frac{-32(+-)4\sqrt{3} }{2*1}$ . Then, multiply 2 by 1 and simplify the equation, which will look like $x=-16(+-)2\sqrt{3}$ . The final answer is $x=-16$ ± $2\sqrt{3}$ in exact form. In decimal form, the final answer is $x=-12.535898$ , $x=-19.464102$ .

6 0

3 years ago

H and J are both between G and K such that GH = JK and H is between G and J.

DIA [1.3K]

Answer:

Step-by-step explanation:

So the order of the points is: GHJK

GH = x+10 =JK

HJ=8

JK=2x-4

JK = x+10=2x-4

x+10=2x-4

10+4=2x-x

x=14

GH= 14+10 =24

GJ = GH +HJ = 24+ 8=32

6 0

3 years ago

How do i find the mean of a group of number's

inna [77]

Lets say your numbers are these...

10,20,30,40,50,60,70,80,90 and 100

you would add those to get 650

Now how many numbers did you add?

You added 10

so now divided

650 by 10

you get 65

that is the mean of those numbers!

5 0

3 years ago

Read 2 more answers

Need some help on area.

Tanzania [10]

The area is (27 x 3) + (15 x 7) = 186

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3 years ago

How do I get upper and lower quartile ranges

xeze [42]

Answer:

This is what I always did

1. Order the data from least to greatest

2. Find the median

3. Find the lower quartile

4. Find the upper quartile

And that is how I always found the ranges

8 0

3 years ago