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irga5000 [103]
3 years ago
14

The scale for a map to actual distance is 2 cm to 100 miles. The driving distance on the map between Los Angeles and Las Vegas i

s 4.5 cm. What is the actual distance in miles between Los Angeles and Las Vegas?
Mathematics
1 answer:
pantera1 [17]3 years ago
3 0

Answer:

225 miles

Step-by-step explanation:

We start by converting it into a fraction, then multiply by the quantity

\frac{100 miles}{2 cm} *4.5 cm =225 miles

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S2. Express the following decimals in the expanded form using exponents. (a) 8.289 (b) 0.0089 (c) 4.000189​
zepelin [54]
I think the answer is 10000000$:
7 0
2 years ago
What is the average rate of change of f over the interval [-1, 4] Give an exact number.
Sonbull [250]

Answer:

  1.4

Step-by-step explanation:

The average rate of change is the "rise" divided by the "run".

  rise/run = (f(4) -f(-1))/(4 -(-1)) = (0 -(-7))/(4+1)

  rise/run = 7/5 = 1.4

The average rate of change on the interval [-1. 4] is 1.4.

3 0
2 years ago
Question on similar triangles attatched
Morgarella [4.7K]

Answer:

<u>h = 24 cm</u>

Step-by-step explanation:

The triangles are similar.

Their dimensions are proportional.

Finding scale factor :

  • DC/AE
  • 10/20
  • 1/2

Finding h :

  • h + h/2 = 36
  • 3h/2 = 36
  • 3h = 72
  • <u>h = 24 cm</u>
6 0
2 years ago
E and F are complementary. If m E = 9x - 38 and mF = 2x + 40, find m F pls I need help
larisa86 [58]

Answer:

<h2>m\angleF = 34°</h2>

Step-by-step explanation:

If E and F are complementary I means that the sum of their angles add up to 90° since all complementary angles have the sum of their angles equal to 90°

To find m\angleF add m\angleE and m\angle F and equate it to 90 to find x then substitute it into the expression for m\angleF

Thats

m\angleE + m\angleF = 90

\rarr 9x - 38 + 2x + 40 = 90

\rarr 11x + 2 = 90

\rarr 11x = 90 - 2

\rarr 11x = 88

Divide both sides by 11

x = 8

Now we have

if m \angleF = 9x - 38

m\angle F = 9( 8) - 38

m\angleF = 72 - 38

We have the final answer as

<h3>m\angleF = 34°</h3>

Hope this helps you

4 0
3 years ago
Use the distributive property to expand the following expression.
Levart [38]

Answer:

-12.8x - 20y + 8.4

Step-by-step explanation:

To do this you just multiply everything by negative 4

so we have 3.2x*-4 + 5y*-4 - 2.1*-4

This gives us

-12.8x - 20y + 8.4

The last term is positive because we multplied a negative by another negative

3 0
3 years ago
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