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Paladinen [302]
3 years ago
7

Solve this equation -6/-4 + 3

Mathematics
1 answer:
zloy xaker [14]3 years ago
5 0
4.5
6*-1=-6
-6/-4=1.5
1.5+3=4.5
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Find the area of the surface. the part of the surface z = 9 + 5x + 2y2 that lies above the triangle with vertices (0, 0), (0, 1)
vazorg [7]
A=1/2 base * height

A= 1/2 (2)(1)= 1 

so the surface area is 1.

7 0
3 years ago
There were 135 cars in a rally each driver paid a $25 fee to participate in the rally how much money did the drivers play in all
charle [14.2K]

Total numbers of cars present in the rally is  135

Amount paid by a single driver to participate in the rally = $25

Total amount generated by the participation fee from each driver is equal to the sum of amount paid by all the 135 cars.

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Total amount = amount paid by one single driver multiplied by the total number of cars.

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7 0
3 years ago
What is the solution for 149.76>-19.2x
katen-ka-za [31]
Hi_just_doing_for_the_points I’m sorry I don’t know the answer
4 0
3 years ago
2 Points
hichkok12 [17]

Answer: 345.02

Step-by-step explanation:

8 0
3 years ago
A wooden log 10 meters long is leaning against a vertical wall with its other end on the ground. The top end of the log is slidi
Andre45 [30]

Answer:

Step-by-step explanation:

This is a related rates problem from calculus using implicit differentiation. The main equation is Pythagorean's Theorem. Basically, what we are looking for is \frac{dx}{dt} when y = 6 and \frac{dy}{dt}=-2.

The equation for Pythagorean's Theorem is

x^2+y^2=c^2 where x and y are the legs and c is the hypotenuse. The length of the hypotenuse is 10, so when we find the derivative of this function with respect to time, and using implicit differentiation, we get:

2x\frac{dx}{dt}+2y\frac{dy}{dt}=0 and divide everything by 2 to simplify:

x\frac{dx}{dt}+y\frac{dy}{dt}=0. Looking at that equation, it looks like we need a value for x, y, \frac{dx}{dt} and \frac{dy}{dt}.

Since we are looking for \frac{dx}{dt}, that can be our only unknown and everything else has to have a value. So what do we know?

If we construct a right triangle with 10 as the hypotenuse and use 6 for y, we can solve for x (which is the only unknown we have, actually). Using Pythagorean's Theorem to solve for x:

x^2+6^2=10^2 and

x^2+36=100 and

x^2=64 so

x = 8.

NOW we can fill in the derivative and solve for \frac{dx}{dt}.

Remember the derivative is

x\frac{dx}{dt}+y\frac{dy}{dt}=0 so

8\frac{dx}{dt}+6(-2)=0 and

8\frac{dx}{dt}-12=0 and

8\frac{dx}{dt}=12 so

\frac{dx}{dt}=\frac{12}{8}=\frac{6}{4}=\frac{3}{2}=1.5 m/sec

7 0
3 years ago
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