Linear functions are straight lines. They are usually in the form of y = mx + c. This is called slope intercept form because m represents the slope and c represents the y intercept.
There is another form Ax + By = C. This form is called general form. From this form we can determine the y - intercept by setting X = 0 and the X intercept by setting y = 0.
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Answer:
*3x + 10y = 240*
Step-by-step explanation:
A look at the image attached will provide more clarification
Answer:
b= -2
Step-by-step explanation:
The ratio given is 3:7 where nonfiction:fiction.
To find the new ratio, divide 3 from 240.
240 / 3 = 80
Now multiply 80 by 7.
80 x 7 = 560
The new ratio is 240:560
If there are 240 nonfiction books then there are 560 fiction books.
To find the total, add these together.
240 + 560 = 800
There are 800 total books
Answer:
The estimate value of the world's radius is 6384 kilometers ⇒ A
Step-by-step explanation:
The formula of the circumference of a circle is C = 2πr, where r is the radius of the circle
∵ The circumference of the world is 24,901 miles
∵ C = 2πr
- Substitute C by 24,901 to find r
∴ 24,901 = 2πr
- Divide both sides by 2π
∴
= r
∴ The radius is 3965.127389 miles
Change the mile to kilometer
∵ 1 mile = 1.60934 kilometers
- Multiply the value of the radius by 1.60934
∴ r = 3965.127389 × 1.60934
∴ r = 6381.238111 kilometers
- Round it to the nearest kilometers
∴ r = 6381 kilometers
The world's radius is 6381 kilometers
The nearest choice for this value is A
The estimate value of the world's radius is 6384 kilometers