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2 years ago

3/5 x 4/5 is greater than 3/5 , since 3/5 is being multiplied by a value greater than 3/5. True or false ?

Mathematics

1 answer:

Zarrin [17]2 years ago

3 0

The answer is false, any number multiplied by a number lower than 1 will always decrease the original number

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Jane has a pre-paid cell phone with Splint. She can't remember the exact costs, but her plan has a monthly fee and a charge for

yan [13]

Answer:

The costs of the plan are $0.15 per minute and a monthly fee of $39

Step-by-step explanation:

Let

x ----> the number of minutes used

y ----> is the total cost

step 1

Find the slope of the linear equation

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

we have the ordered pairs

(100,54) and (660, 138)

substitute

$m=\frac{138-54}{660-100}$

$m=\frac{84}{560}=\$0.15\ per\ minute$

step 2

Find the equation of the line in point slope form

$y-y1=m(x-x1)$

we have

$m=0.15\\point\ (100,54)$

substitute

$y-54=0.15(x-100)$

step 3

Convert to slope intercept form

Isolate the variable y

$y-54=0.15x-15\\y=0.15x-15+54\\y=0.15x+39$

therefore

The costs of the plan are $0.15 per minute and a monthly fee of $39

6 0

3 years ago

Y=0.2(4)x is it exponential growth or decay

Dmitry [639]

Answer:

growth

Step-by-step explanation:

This is of the form

y = ab^x where a is the initial value and b is either growth or decay

if b > 1 then it is growth

b <1 it is decay

a = .2

b = 4

Since b>1 it is growth

5 0

3 years ago

Which answers show a correct plan to solve this problem?

uranmaximum [27]

A. & B. Is the correct answer.

3 0

3 years ago

Need help <br> Value of n2(m+r)if m=3,n=2,r=4

melisa1 [442]

Answer 28 because you plug it in for your answer.

3 0

3 years ago

Find the area of the largest circle that can be inscribed inside a square whose diagonal is 5" ( with explanation )

sweet-ann [11.9K]

Answer:

19.625

Step-by-step explanation:

If the square's diagonal is 5 and the circle is inscribed in it, that means that the radius is 2.5

2.5^2*3.14

=19.625

6 0

3 years ago