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3 years ago

A function h(x)=-5/7x-3. By how much h(x) will decrease/increase, if x decreases by 21.

Mathematics

1 answer:

Fofino [41]3 years ago

7 0

Answer:

increase by 15

Step-by-step explanation:

We know the rate of change of h(x) is given by the coefficient of x, -5/7. This means any change in x will be reflected as a change in h(x) by -5/7 times the amount of the change.

Here, we're talking about a change in x of -21, so the change in h(x) will be ...

(-5/7)·(-21) = 5·(21/7) = 15

The positive sign means the value of h(x) will increase by 15.

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Use function notation to represent the area of a circle whose circumference is 136cm

Nimfa-mama [501]

Answer:

$A(\frac{68}{\pi})=\frac{4624}{\pi}$

Step-by-step explanation:

The given circle has circumference 136cm.

The formula for circumference is $C=2\pi r$

This implies that:

$136=2\pi r$

$\frac{136}{2\pi}=r$

$\frac{68}{\pi}=r$

The area of a circle is given as $A(r)=\pi r^2$

When $r=\frac{68}{\pi}$

$A(\frac{68}{\pi})=\pi*(\frac{68}{\pi})^2$

$A(\frac{68}{\pi})=\pi*\frac{(68)^2}{\pi^2}$

$A(\frac{68}{\pi})=\frac{4624}{\pi}$

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3 years ago

What’s the answer/ how should I work it?

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Hi my lil bunny!

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$-\frac{6}{11} + (-\frac{5}{11}) =$

$=\frac{-6}{11} + \frac{5}{11}$

$= \frac{-6}{11} + \frac{-5}{11}$

$= -1$

❧⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯☙

●✴︎✴︎✴︎✴︎✴︎✴︎✴︎✴︎❀✴︎✴︎✴︎✴︎✴︎✴︎✴︎✴︎✴︎●

Have a great day/night!

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3 years ago

Can someone Solve: 2x^2/3 = 8

Naddika [18.5K]

Isolate the variable by dividing each side by factors that don't contain the variable.

x = 2 √ 3 , − 2 √ 3

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3 years ago

Electric utility poles in the form of right cylinders are made out of wood that costs $25.46 per cubic foot. Calculate the cost

kotegsom [21]

Answer:

$ 1349.746624

Step-by-step explanation:

The volume of a cylinder

The formula for calculating the volume of a cylinder is expressed as:

V=πr²h

where:

r is the radius

h is the height

Given the following parameters

r = d/2 = 1.5/2 = 0.75ft

h = 30ft

Get the volume of the cylinder

V=π(0.75)²(30)

V= 53.0144...ft³

If the wod costs $25.46 per cubic foot, hence the cost of the wood will be 53.0144*25.46 = $ 1349.746624

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2 years ago

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Ilya [14]

Answer:

Step-by-step explanation:

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3 years ago