All categories

3 years ago

The scale of a map is 1 cm: 12 km. Find the actual distance for 1.5 cm

Mathematics

2 answers:

Lina20 [59]3 years ago

8 0

The answer for 1.5 km is 18

WARRIOR [948]3 years ago

3 0

1cm=12km
1.5cm=?mk
The answer is 18, I quickly did this one in my head by finding half of 12 and adding it with 12, but the mathematical way to do it is to multiply 1.5 by 12.

You might be interested in

4)Rudy collects baseball cards, and he currently has 300 cards. Starting tomorrow, he will purchase 1 pack of 15 baseball cards

andre [41]

I think it’s answer B

5 0

3 years ago

What is the equation of the line

olga2289 [7]

Answer:

It's the first choice y = (-5/2)x - 1.

Step-by-step explanation:

First find the slope of the line 5x + 2y = 12 by converting to slope-intercept form.

5x + 2y = 12

2y = -5x + 12

y = (-5/2)x + 6 so the slope is (-5/2).

The line we require had also a slope of -5/2 because it is parallel to the first line and it also passes through the point (-2, 4). So:

y - 4 = (-5/2)(x - -2) (the point-slope form)

y - 4 = (-5/2)(x + 2)

y = (-5/2)x - 5 + 4

y = (-5/2)x - 1 (answer)

7 0

3 years ago

What is the value of the expression (-2) to the third power (-2) to the second power

Lunna [17]

Answer:

-2 to the third power is -8

-2 to the second power is -4

Step-by-step explanation:

-2 to the 3 power = -2× -2×-2

-2 to the second power is -2×-2

4 0

3 years ago

What is the vertex of the parabola: y=2(x-3)2^+4

denis23 [38]

Answer:

<em>Vertex: (3,4)</em>

Step-by-step explanation:

<u>Vertex form of the quadratic equation</u>

The vertex form of the quadratic function has the following equation:

$y=a(x-h)^2+k$

Where (h, k) is the vertex of the parabola that results when plotting the function, and a is a coefficient different from zero.

The parabola is given as:

$y=2(x-3)^2+4$

Comparing with the equation:

a=2, Vertex: (3,4)

The graph of the parabola is shown in the image below

5 0

3 years ago

The area of a rectangle is 25/42 and its width is 5/6. What is the length? ASAP

Serhud [2]

Answer:

<h2> $length = \frac{25}{28}$ </h2>

Step-by-step explanation:

Let the length of the rectangle be l

Area of a rectangle = length × width

From the question

Area = 25/42

width = 5/6

Substitute the values into the above formula and solve for the length

That's

<h3> $length = \frac{area}{width}$ </h3>

So we have

<h3> $length = \frac{25}{42} \div \frac{4}{6} \\ = \frac{25}{42} \times \frac{6}{4} \\ = \frac{25}{7} \times \frac{1}{4}$ </h3>

We have the final answer as

Hope this helps you

8 0

3 years ago