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tatuchka [14]
3 years ago
12

A map has the scale 1cm:40mi. What is the distance between two towns that are 3.3cm apart on the map?

Mathematics
1 answer:
Nesterboy [21]3 years ago
5 0

Answer:

132 miles

Step-by-step explanation:

Given data

scale 1cm:40mi.

this means that

1 cm on the map is equal to 40 miles on

Hence if 1cm rep 40 miles

              3.3cm will rep x

cross multiply

x= 3.3*40

x=132 miles

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sweet [91]

Answer:

True

Explanation:

First of all its necessary remember that a linear system is a compound of multiple equations that involve variables.

<h2>Existence:</h2>

Depending on the number of equations and the number of variables, you could determine if the linear system has a solution or not. There are 3 possibilities:

  1. If the linear system has more equations than variables could exist infinite answers.
  2. If the linear system has more variables than equations, it is considered an undetermined system and you neer more information to solve it.
  3. If the linear system has the same number of equations and variables, the system is consistent and has at least one solution.
<h2>Uniqueness:</h2>

If possibility 3 is presented, it becomes necessary know if its the only one solution or exists more than one solution.

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3 years ago
Write a polynomial function of least degree with rational coefficients so that P(x)=0 has the given roots.
Fittoniya [83]

Answer:

If P(x) has the roots -11 and 6, then its multipliers can be written as

Step-by-step explanation:

P(x)=(x+11)(x-6)

P(x)=x2-6x+11x-66

P(x) = x2+5x-66

3 0
3 years ago
You can use _____ to help determine the right foods to eat.
Ratling [72]

Answer:

Joe mama

Step-by-step explanation:

The Food Pyramid

4 0
3 years ago
A certain game involves tossing 3 fair coins, and it pays .14 for 3 heads, .06 for 2 heads, and .01 for 1 head. The expected win
Romashka [77]

Answer:

Total expected amount = $0.04375

Step-by-step explanation:

We need to calculate probability of getting heads on every combination of coin tosses

HHH = 1/8 = 3 heads

HHT = 1/8 = 2 heads

HTH = 1/8 = 2 heads

HTT = 1/8 = 1 head

THH = 1/8 = 2 heads

THT = 1/8 = 1 head

TTH = 1/8 = 1 head

TTT = 1/8 = 0 head

So the probability of 3 heads is 1/8 and the amount is (1/8)* 0.14 = $0.0175

Probability of 2 heads is 3/8 and the amount is (3/8) * 0.06 = $0.0225

Probability of 1 head is 3/8 and amount is (3/8) * 0.01 = $0.00375

Total expected amount = 0.00375 + 0.0225 + 0.0175

Total expected amount = $0.04375

7 0
4 years ago
Bro can someone please help me on these three questions I’ve been trying to get help on these questions for like the past 30 min
Inessa05 [86]

Answer:

Step-by-step explanation:

1). By applying cosine rule in the given triangle,

   cos(x°) = \frac{\text{Adjacent side}}{\text{Hypotenuse}}

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   x = \text{cos}^{-1}(\frac{3}{4} )

   x = 41.41°

2). By applying cosine rule in the given triangle,

   cos(x°) = \frac{\text{Adjacent side}}{\text{Hypotenuse}}

   cos(x°) = \frac{4}{5}

   x = \text{cos}^{-1}(0.8)

   x = 36.87°

3). By applying cosine rule in the given triangle,

   cos(x°) = \frac{\text{Adjacent side}}{\text{Hypotenuse}}

   cos(x°) = \frac{51}{85}

   x = \text{cos}^{-1}(0.6)

   x = 53.13°

5 0
3 years ago
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