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ser-zykov [4K]
3 years ago
7

If A:B = 5:18 and B:C = 6:4, form the ratio A:B:C​

Mathematics
2 answers:
valina [46]3 years ago
8 0

Answer:

5 : 18 : 12

Step-by-step explanation:

Express the ratio B : C  in fractional form, that is

\frac{B}{C} = \frac{6}{4} ( cross- multiply )

6C = 4B ( divide both sides by 6 )

C = \frac{4}{6} B = \frac{2}{3} B , then

C = \frac{2}{3} × 18 = 2 × 6 = 12

Hence

A : B : C = 5 : 18 : 12

Ede4ka [16]3 years ago
5 0

Answer:

5:18:12

Step-by-step explanation:

5:18

_:6:4 --> since you multiply 6 by 3 to get 18, multiply 4 by three to get the A:B:C ratio.

5:18:12

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PLZ PLZ HALP!!
bogdanovich [222]

Answer:

(A) - (5)

(B) - (4)

(C) - (1)

(D) - (2)

Step-by-step explanation:

(A) We are given the polynomial (x+4)(x−4)[x−(2−i)][x−(2+i)]

(5) The related polynomial equation has a total of four roots; two roots are complex and two roots are real.

(B) We are given the polynomial (x+i)(x−i)(x−2)³(x−4).

(4) The related polynomial equation has a total of six roots; two roots are complex and one of the remaining real roots has a multiplicity of 3.

(C) We are given the polynomial (x+3)(x−5)(x+2)²

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8 0
3 years ago
Which equation could be used to calculate the sum of the geometric series? One-third + two-ninths + StartFraction 4 Over 27 EndF
kondaur [170]

Answer:

S 5 = StartFraction one-third (1 minus (two-thirds) Superscript 5 Baseline) Over (1 minus two-thirds) EndFraction

Step-by-step explanation:

Given the geometric series:

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First we must know that the series is a finite series with just 5terms.

Before we can know the formula to calculate sum of the first five terms of the series, we must determine its common ratio (r) first.

r = (2/9)÷1/3 = 4/27÷2/9= 8/81÷4/27

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Similarly;

r = 4/27×9/2

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Since all values of r is the as them the common ratio is 2/3.

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n is the number of terms = 5

Substituting the values in the formula we have:

S5 = 1/3{1-(2/3)^5}/1-2/3

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S 5 = StartFraction one-third (1 minus (two-thirds) Superscript 5 Baseline) Over (1 minus two-thirds) EndFraction

4 0
3 years ago
Read 2 more answers
Which function has a vertex at the origin?
dlinn [17]

Answer:

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rjkz [21]
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x1 = 3
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Now, just plug in the numbers:
m = (7 - -8)/(3-4)
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Answer:

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