When a liquid is placed into a refrigerator, its temperature T°C at a time t minutes is given by the formula T=T*10^-kt The temperature is initially 100°C and drops to 40°C in 5 minutes. Find...

When a liquid is placed into a refrigerator, its temperature T°C at a time t minutes is given by the formula T=T*10^-kt The temperature is initially 100°C and drops to 40°C in 5 minutes. Find...

4. Graph the area bounded by y< 1/2x+6, X+3y>=12, X>=0 and x<=12 part i. graph the bounded by X>=0 and x<=12. shade the region that...

from 50 students taking exam in mathematics, physics and chemistry, each of the student has passed in at least one of the subjects, 37 passes mathematics, 24 physics and 43 chemistry. At most 19 passed...

All the kings are coming together for a celebration and they are all bringing their elephants with them. Our task is to design holding pens for these elephants. Here are the king’s directions. 1....

Write an equation that models the scenario. Let x equal the number of hours and y equal the total cost of the rental. Make a table and find 5 points that satisfy the equation.Graph the relationship...

If a point has 0 dimension means no dimension then how does it exist?

A recipe for blueberry muffins states that it yields 12 muffins, with 265 calories per muffin. You instead decide to make mini-muffins, and the recipe yields 20 mini-muffins. If you eat 7 mini-muffins,...

Quadrilateral ABCD is a rhombus with side of lengths 8cm. The measure of one angle of the rhombus is 157 degrees. Find the lengths of the diagonals of the rhombus without using...

What is the equation of a parabola with (−2, 4) as its focus and y = 6 as its directrix? - Thank you to anyone who helps!

I need a full explanation please.

Circle F is intersected by HI and IJ and m∠HIJ = 101°. What is the measure of HJ? Here's a link to the picture: http://imgur.com/a/O8pO3

The sector of a circle with a 60 mm radius has a central angle measure of 30°. What is the exact area of the sector in terms of π? - Thank you to anyone who helps!

Suppose two adjacent endpoints of a rotated square are located at (-3,-7) and (1,-3) on the coordinate axes. a. What is the length of the side of the square? b...

Use absolute value notation to represent the following: a. All numbers x whose distance from -3 is less than 3.2 b. All numbers x whose distance from 2 is less than 2...

I Just had to put some thing in this box so here ya go

Full explinaiton please

Full explinaiton please

Full explinaiton please

I am trying to find the total number of students appered for the exam

b) equation of the circle with center on the lines 2x - 5y + 1 = 0 and x - y + 3 = 0; and passing through the point (3; 0).