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2 years ago

What is the slope of a line that passes through the points (4,-2) and (-1,8)

Mathematics

1 answer:

gregori [183]2 years ago

6 0

set y = kx+b

for (4,-2): -2=4k+b (function 1)

for (-1,8): 8=-k+b (function 2)

Use function 2 subtract function 1:

10=-5k

k=-2

SO the slope is -2.

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Tensile strength tests were performed on two different grades of aluminum spars used in manufacturing the wing of a commercial t

jekas [21]

Answer:

(12.1409, 14.0591

Step-by-step explanation:

Given that Tensile strength tests were performed on two different grades of aluminum spars used in manufacturing the wing of a commercial transport aircraft. From past experience with the spar manufacturing process and the testing procedure, the standard deviations of tensile strengths are assumed to be known.

Group Group One Group Two

Mean 87.600 74.500

SD 1.000 1.500

SEM 0.316 0.433

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2 years ago

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lawyer [7]

The answer in binary is 10

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2 years ago

It takes 1 hour (t) to fill the water tank of volume (V) 750 m3. Identify the dependent and the independent variables.

Natalija [7]

Answer:

The time t is the independent variable while the volume V is the dependent variable

Step-by-step explanation:

A variable is a parameter that changes.

We have two types namely dependent and independent variables.

A dependent variable is a variable which its value needs to be determined based on the value of another variable while and independent variable is a variable which its value independent of other parameters.

In our question, It takes 1 hour (t) to fill the water tank of volume (V) 750 m3.

The volume of the tank V changes as time changes. So the volume of the tank V is dependent on time, t.

So V is proportional to t

Since the volume of the tank is the variable that needs to be determined based on another variable-which is time,t- it is the dependent variable, while the time,t is the independent variable since its value is not determined based on other parameters.

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2 years ago