All categories

4 years ago

True or False? The Length of time on the desk is a function of the temperature of the coffee

Mathematics

1 answer:

Andreyy894 years ago

4 0

Should be true. The coffee would not stay the same temperature as it was originally than it would over time.

You might be interested in

Find the value of x. I need to show the equations please ----and thank you!!!!

iVinArrow [24]

Answer:

x=15 degrees

Step-by-step explanation:

75/5=15

x=15

4 0

3 years ago

What is the equation of the line that passes<br> through the point (-2,2) and the point (-6,4)?

egoroff_w [7]

Answer:

y = -1/2x+1

Step-by-step explanation:

First step is to find the slope

m = (y2-y1)/(x2-x1)

= ( 4-2)/(-6 - -2)

(4-2)/(-6+2)

2/-4

-1/2

Then we can use the slope intercept form of a line

y = mx+b where m is the slope and b is the y intercept

y = -1/2x+b

Substitute a point into the equation to find b

2 = -1/2(-2) +b

2 = 1+b

Subtract 1 from each side

1 =b

y = -1/2x+1

8 0

2 years ago

Read 2 more answers

Two lighthouses are located 60 miles from one another on a north-south line. If a boat is spotted S 21o E from the northern ligh

jasenka [17]

Answer:

(A)The northern lighthouse is 8.2 miles closer than the southern lighthouse.

Step-by-step explanation:

The triangle attached represents the given problem.

First, let us determine the distance of the Boat from each of the lighthouse.

In Triangle ABC,

∠A+∠B+∠C=180 degrees

21+∠B+16=180

∠B=180-37=143 degrees.

Using Law of Sines

$\frac{a}{Sin A}=\frac{b}{Sin B}\\\frac{a}{Sin 21^0}=\frac{60}{Sin 143^0} \\\text{Cross Multiply}\\a*sin143=60*sin21\\a=60*sin21\div sin143\\a=35.73 miles$

Similarly

$\frac{c}{Sin C}=\frac{b}{Sin B}\\\frac{c}{Sin 16^0}=\frac{60}{Sin 143^0} \\\text{Cross Multiply}\\c*sin143=60*sin16\\c=60*sin16\div sin143\\c=27.48 miles$