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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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24x squared – 44x + 12​
vekshin1

Answer:

Step-by-step explanation: 24 squared is 576 - 44x + 12

576 + 12 = 588

588 - 44x

7 0
4 years ago
Let g(x) = x² - 3 and h(x) = 2x + 5. Find g(h(x)).
Arisa [49]

Answer: 4x^2+20x+22\\\\

========================================

Work Shown:

g(x) = x^2 - 3\\\\g(h(x)) = (h(x))^2 - 3\\\\g(h(x)) = (2x+5)^2 - 3\\\\g(h(x)) = (2x+5)(2x+5) - 3\\\\g(h(x)) = 4x^2+10x+10x+25 - 3\\\\g(h(x)) = 4x^2+20x+25 - 3\\\\g(h(x)) = 4x^2+20x+22\\\\

Explanation: I replaced every x with h(x) in step 2. In step 3, I replaced h(x) with 2x+5 just on the right hand side only. From there, expand and simplify.

7 0
3 years ago
F(x)=16^X<br> 1. F(x)=4 x/4<br> 2.f(x)=2^4x<br> 3. F(x)=2 x/4<br> 4. F(x)=4^4x
kicyunya [14]

Answer:

2.f(x)=2^4x

Step-by-step explanation:

16^x

We can rewrite 16 as 2^4

2^4^x

We know that a^b^c is equal to a^ (b*c)

so 2^(4*x)

2^(4x)

4 0
3 years ago
the length of a rectangle is 4in more than its width, and its perimeter is 34in find the length and width of the rectangle ​
Anna [14]

Let l and w be, respectively, the length and the width of the rectangle.

If the length is 4 inches more than the width, we have

l = w+4

Moreover, the perimeter of a rectangle is given by

2(l+w)

And we can substitute l=w+4 to get

2(w+4+w)=2(2w+4)=4w+8

We know that the perimeter is 34 inches:

4w+8=34 \iff 4w = 26 \iff w = \dfrac{26}{4}=6.5

Which implies

l=w+4=6.5+4=10.5

5 0
4 years ago
Find the surface area of a cylinder with a base diameter of 6 m and a height of 4 m
Lorico [155]

Answer:

SA=131.94689

Step-by-step explanation:

SA=2πrh+2πr^2

SA=2*3.14*3*4+2*3.14*3^2

SA=131.94689

4 0
3 years ago
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