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3 years ago

PLEASE HELP. I dont get how to do this

Mathematics

1 answer:

antiseptic1488 [7]3 years ago

6 0

Answer:

Step-by-step explanation:

x^(-y) = 1/x^y

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Two trains leave the station at the same time, one heading east and the other west. The eastbound train travels at 55 miles per

SSSSS [86.1K]

Answer:

95+75=170 mph=speed at which the two trains are moving apart

travel time=distance/speed=374/170=2.2

How long will it take for the two trains to be 374 miles apart? 2.2 hrs

Step-by-step explanation:

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3 years ago

Find the value of n, if 25.003 = (2x 10) + (5x1)+(3xn)

guajiro [1.7K]

Answer:

$n=0.001$

Step-by-step explanation:

$(2\times10)+(5\times1)+(3\times n)=25.003\\\\\implies 20 + 5 + 3n = 25.003\\\\\implies 3n+25=25.003\\\\\implies 3n+25-25=25.003-25\\\\\implies 3n = 0.003\\\\\implies n=0.001$

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1 year ago

Harry is building a model car. The actual car has a length of 15 feet and tires with a radius of 24 inches. His model car has a

nasty-shy [4]

Answer:

B: two inches

Step-by-step explanation:

15/1.25=12

24/12=2

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3 years ago

Find the radius of the circle with a diameter of 100 meters.

Ganezh [65]

Answer:

Step-by-step explanation:

100/2

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3 years ago

Read 2 more answers

Determine the equation of quadratic function represented by the table of value below.

Svetllana [295]

Answer:

Step-by-step explanation:

The general rule for the quadratic function is

$y=ax^2+bx+c$

Use the data from the table:

$y(0)=6\Rightarrow 6=a\cdot 0^2+b\cdot 0+c\\ \\y(1)=4\Rightarrow 4=a\cdot 1^2+b\cdot 1+c\\ \\y(-1)=10\Rightarrow 10=a\cdot (-1)^2+b\cdot (-1)+c$

We get the system of three equations:

$\left\{\begin{array}{l}c=6\\ \\a+b+c=4\\ \\a-b+c=10\end{array}\right.$

From the first equation

$c=6,$ then

$\left\{\begin{array}{l}a+b=-2\\ \\a-b=4\end{array}\right.$

Add these two equations:

$a+b+a-b=-2+4\\ \\2a=2\\ \\a=1$

So,

$b=-2-a=-2-1=-3$

The quadratic function is

$y=1\cdot x^2-3x+6\\ \\y=x^2-3x+6$

6 0

3 years ago

PLEASE HELP. I dont get how to do this ​

PLEASE HELP. I dont get how to do this