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2 years ago

12

What is the domain of the equation y = 2/5x - 4?

1 answer:

zepelin [54]2 years ago

8 0

Answer:

domain= {x/x€R/x≠0}

Step-by-step explanation:

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A set of notations (SSS, SAS, ASA and RHS) is used to describe/prove

Olin [163]

Step-by-step explanation:

where are the triangles

5 0

3 years ago

A hot air balloon went from an elevation of 6,678 feet to an elevation of 3,438 feet in 48 minutes. What was its rate of descent

gregori [183]

Answer:

The rate of descent is $-67.5\frac{feet}{minute}$

Step-by-step explanation:

we know that

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

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

Let

x------> the time in minutes

y----> the elevation in feet

we have

$A(0,6,678)\ B(48,3,438)$

Substitute the values

$m=\frac{3,438-6,678}{48-0}$

$m=\frac{-3,240}{48}$

$m=-67.5\frac{feet}{minute}$

4 0

3 years ago

Which does NOT show a reasonable estimate for 673 × 18?

Yakvenalex [24]

Answer:

A. 14,000

Step-by-step explanation:

because 673 rounded would equal 700

and 18 rounded would be 20

so 700x20 would be 14,000

hopefully you understand

and i hope you have a good day :)

6 0

3 years ago

The area of a rectangle is 21 cm². If one side exceeds the other by 4 cm, find the dimensions of the rectangle.

Over [174]

Answer:

3cm and 7cm

Step-by-step explanation:

The length is 7cm.

The width is 3cm.

Area = Length × Width = 7cm × 3cm = 21cm²

7 0

2 years ago

3x + (2 + x) + 5 times 2

Gennadij [26K]

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4 0

2 years ago