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3 years ago

If x represents a number, write an expression in terms of x for seven less than three times this number divided

Mathematics

1 answer:

TEA [102]3 years ago

5 0

Step-by-step explanation:

seven less than three times this number = 7 - 3x

7 - 3x divided by 5 times the square of number =

$\frac{7 - 3x}{5 {x}^{2} }$

hope this answer helps you dear...and may u have a great day ahead!

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Akhil and Sonu are friends who study in the same school who attended their Assessment test, after they get their results, Akhil

WARRIOR [948]

Answer:

digit in the unit's place originally = 5

Step-by-step explanation:

x + y = 14

xy - yx = 36

Now, the only single digits that sum up to 14 are;

9 + 5 = 14

8 + 6 = 14

We can't use 7 + 7 because they said there is a difference when the numbers are reversed.

Now, let's assume 95 is the original number since we are told when it is reversed it is lesser.

Thus, when reversed we have 59.

Difference = 95 - 59 = 36

Thus,unit number of original number = 5

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3 years ago

If y varies inversely as X and Y equals 5 when x equals 3 find X when Y is 15

omeli [17]

Answer:

x = 1

Step-by-step explanation:

Given that y varies inversely as x then the equation relating them is

y = $\frac{k}{x}$ ← k is the constant of variation

To find k use the condition y = 5 when x = 3

k = yx = 5 × 3 = 15, thus

y = $\frac{15}{x}$ ← equation of variation

When y = 15 then

15 = $\frac{15}{x}$ ( multiply both sides by x )

15x = 15 ( divide both sides by 15 )

x = 1

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3 years ago

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Answer:

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Step-by-step explanation:

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3 years ago

Three functions are given below: f(x), g(x), and h(x). Find the axis of symmetry for each function, and rank the functions based

m_a_m_a [10]

Answer:

Step-by-step explanation:

f(x)=-4(x-2)²+3

put x-2=0

axis of symmetry is x=2

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put x+4=0

axis of symmetry is x=-4

h(x) is minimum at x=1

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3 years ago

What’s the name of these mathematical symbols:

Alex

Answer:

he first is a numerical sentence and the second is an equation

Step-by-step explanation:

equation because there's "="

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3 years ago