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mash [69]
3 years ago
8

What is AB to the nearest meter

Mathematics
2 answers:
siniylev [52]3 years ago
8 0

Answer:

15m

Step-by-step explanation:

So make this simpler, imagine two triangles the small one with dimensions 5,4,5 and the larger one with dimensions 15,12,AB.

To find the distance of AB we can use the common ration between the similar triangles.

r = common ratio

AB = 5r

we know that r = 3, because of the other side lengths

5r = 15

and 4r = 12,

so AB = 5r

and if r = 3 then AB =15

sashaice [31]3 years ago
6 0

Answer:

C. 15

Step-by-step explanation:

Small triangle is similar to larger one so we can use the similarity ratio to solve the question:

CE/CA = DE/AB

4/12 = 5/AB cross multiply expressions

4AB = 60 divide both sides by 4

AB = 15

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lisabon 2012 [21]

Answer:

(x+2)⋅(x−3)

Step-by-step explanation:

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3 years ago
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The first element in an arithmetic sequence is 2. Its twenty second is 14. Find the value of n so that a(n)=6
Aleks04 [339]

Answer:

<h2>n = 8</h2>

Step-by-step explanation:

Given the nth term of an arithmetic sequence to be Tn = a+(n-1)d

a = first term of the sequence

n = number of terms

d = common difference.

Given the first element a = 2 and 22nd to be 14

T22 = a+(22-1)d = 14

a+21d = 14

Substtuting a = 2 into the equation to get d

2+21d = 14

21d = 12

d = 12/21

d = 4/7

The nth term of the sequence given a = 2 and d = 4/7 will be expressed as;

Tn = 2+(n-1)4/7

Given Tn = 6

6 = 2+(n-1)4/7

6 = 2+4/7 n - 4/7

6-2+4/7 = 4/7 n

32/7=4/7 n

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8 0
3 years ago
Can someone please help me with this question
Tanzania [10]

Answer:

B) [1, 4, 7]

Step-by-step explanation:

Substitute 0 in

f(0) = 3(0) + 1

Multiple

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Substitute 1 in

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f(1) = 4

Substitute 2 in

f(2) = 3(2) + 1

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3 years ago
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What is the answer
Nastasia [14]

Answer:

both

Step-by-step explanation:

neither of those can be an answer. because x is less than or equal to -1

5 0
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