Step-by-step explanation:
y |X(the sign for protionality) 1/√x
y = 7 when x = 36
y = k/√x
7 = k/√36
7 = k / 6 cross multiply
k = 7×6
k = 42
find y when x is 4
y = 42/√x
y = 42/√4
y = 42/2
y = 21
Answer:
is it 24
Step-by-step explanation:
twice of a number thats 12???
dont use answer unless your sure
To answer this question you will need to calculate the amount of interest he earns in a year, apply the discount on the sale price, and calculate the sales tax on the discounted price. Then you will take the amount in his bank account minus the sale price with tax.
Each of the steps is shown in the attached work.
He will have $111 left is his account.
The proofing of the triangle is illustrated below.
<h3>How to illustrate the proof?</h3>
AB = c
BC = a
AC = b
h² = b² - x²
h² = a² - y²
a² - y² = b² - x²
a² = b² - x² + y²
Note that x = c - (c - x) = c
a² = b² - (-x)² + y²
a² = b² + c² + y²
Cos A = x/b
cos = adjacent/hypothenuse
x = bcosA
a² = b² + c² - 2bx
a² = b2 + c² - 2bccosA
Learn more about triangles on:
brainly.com/question/1058720
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