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Evgen [1.6K]
1 year ago
12

Suppose that y varies directly with x and y3 when x = 9. What is y when x = 18? y = [?]

Mathematics
1 answer:
exis [7]1 year ago
8 0

Answer:

y=6

Step-by-step explanation:

y=kx

3=9k

k=3/9

k=1/3

y=kx

y=1/3 × 18

y=6

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A principal of $2200 is invested at 6.25% interest, compounded annually. How much will the investment be worth after 13 years
s2008m [1.1K]

Answer:

Let S = Sum after 13 years

So = amount invested

t = time in years

i = annual interest rate = .0325

The S = So(1+i)t = $2,200(1.0325)13 = $3,334.21

6 0
2 years ago
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The circumference of a child's swimming pool that has a radius of 3 feet.
ExtremeBDS [4]
Formula for circumference= (2)(pi)(r) or (pi)(d)
diameter=2r=6ft
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7 0
3 years ago
1/5 divided by N equals 1/3
8090 [49]

Answer:

N=3/5

Step-by-step explanation:

(1/5)/N=1/3

N=(1/5)/(1/3)

N=(1/5)(3/1)

N=3/5

6 0
3 years ago
If a(x) = 3x + 1 and b (x) = square root of x-4, what is the domain of (b o a)(x)
Monica [59]

( 1, ∞)  is the domain of (b o a)(x)

<h3>What is Function?</h3>

A function is defined as a relation between a set of inputs having one output each.

According to the question,

a(x) = 3x + 1 \\\\b (x) =\sqrt{x+4}

To find the domain of the composite function,

(b o x) (x) = b(a(x))\\\\(b o x) (x) = b(a(3x-1))\\\\(b o x) (x) = \sqrt{3x+ 1 -4} \\\\(b o x) (x) = \sqrt{3x -3}\\\\

Therefore,

3x - 3 \geq 0\\3x \geq 3\\x \geq 1\\\\

Hence , [ 1, ∞ ] is is the domain of (b o a)(x).

learn more about function here:brainly.com/question/12431044

#SPJ1

8 0
1 year ago
The left and right page numbers of an open book are two consecutive integers whose sum is 295. Find these page numbers.
artcher [175]

Answer:

147, 148

Step-by-step explanation:

295/2=147 remainder 1 so, consecutive means back to back so 147 and 148. Add them up and you get 295.

3 0
3 years ago
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