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Illusion [34]
2 years ago
8

A, B, C and D are the four corners of a rectangular plot marked out on level ground. given that the bearing of B from A is 040 d

egree and the bearing of C from A is 090 degree, calculate the bearing of:
a. B from C
b. A from C
c. D from C
Mathematics
1 answer:
Mariulka [41]2 years ago
5 0

The bearing of B from C based on the information given will be 40°.

<h3>How to depict the bearing?</h3>

A bearing is an angle measured from the North direction clockwise. Notice that the bearing of B from C is 40° because according to the problem, all four points are on level ground, which means they are coplanar, and the angle between the plane and the North is 40°.

The bearing of A from C is also 110° because it's the bearing of C from A and A from C are same-side internal angles between parallels which must sum 180°.

The bearing of D from C is 40° too because that setup is parallel to the bearing of B from C.

Learn more about bearing on:

brainly.com/question/22719608

#SPJ1

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5. (6 marks) Use mathematical induction to prove that for each integer n ≥ 4, 5^n ≥ 2^2n+1 + 100.
Tju [1.3M]

Step-by-step explanation:

We will prove by mathematical induction that, for every natural n\geq 4,  

5^n\geq 2^{2n+1}+100

We will prove our base case, when n=4, to be true.

Base case:

5^4=625\geq 612=2^{2*4+1}+100

Inductive hypothesis:  

Given a natural n\geq 4,  

5^n\geq 2^{2n+1}+100

Now, we will assume the induction hypothesis and then use this assumption, involving n, to prove the statement for n + 1.

Inductive step:

2^{2(n+1)+1}+100=2^{2n+1+2}+100=\\=4*2^{2n+1}+100\leq 4(2^{2n+1}+100)\leq 4*5^n

With this we have proved our statement to be true for n+1.  

In conlusion, for every natural n\geq4.

5^n\geq 2^{2n+1}+100

7 0
3 years ago
Which pair of numbers are equidistant from -28 on a number line
nasty-shy [4]

Positive 28 I think.

6 0
4 years ago
On your own paper, graph the system of equations and identify the solution:
notsponge [240]

The equations y = 3x - 4 and y = 3x + 1 are linear equations

The equations have no solution

<h3>How to determine the solution of the equations?</h3>

The equations are given as:

y = 3x - 4

y = 3x + 1

Next, we plot the graph of the equations y = 3x - 4 and y = 3x + 1

From the graph (see attachment), we can see that the equations do not have a point of intersection

Hence, the equations has no solution

Read more about linear equations at:

brainly.com/question/14323743

8 0
2 years ago
L’ost pleassseeeeeeee
Brrunno [24]

Answer: note I will just replace the Shape by an X

a) X + 9 = 9 + 6; X=6 Commutative Propertie

b) 0 + X = 7;  X=7  Additive Identity Propertie

c) X + (7 + 3) = (4 + 7) + 3; X=4   Associative Propertie


Step-by-step explanation:

There are four mathematical properties which involve addition. Commutative, associative, additive identity and distributive properties.

Commutative property: When two numbers are added, the sum is the same regardless of the order of the addends.  

Associative Property: When three or more numbers are added, the sum is the same regardless of the grouping of the addends.  

Additive Identity Property: The sum of any number and zero is the original number.  

Distributive property: The sum of two numbers times a third number is equal to the sum of each addend times the third number.  


5 0
3 years ago
Two angles are supplementary. One is 90° more than twice the other. Find the measures of the angles.​
Doss [256]

Answer:

30, 150

A + B = 180

A = 2B+ 90

2B + 90 + B = 180

3B = 90

B=30 A=150

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
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