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3 years ago

My question is -9x-5=-95

Mathematics

1 answer:

AlladinOne [14]3 years ago

7 0

Answer:

x=10

Step-by-step explanation:

Pull out like factors :

-9x + 90 = -9 • (x - 10)

Equations which are never true:

2.1 Solve : -9 = 0

This equation has no solution.

A a non-zero constant never equals zero.

Solving a Single Variable Equation:

2.2 Solve : x-10 = 0

Add 10 to both sides of the equation :

x = 10

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A solid object is dropped into a pond with a temperature of 20 degrees Celsius. The function f(t)=Ce(−kt)+20 represents the situ

LenaWriter [7]

Answer:

The initial temperature of the object was 37.6 degrees Celsius

The initial temperature of the object was 37.6 (without units)

Step-by-step explanation:

we have

$f(t)=Ce^{(-kt)} +20$

where

f(t) represent the temperature of the object in degree Celsius

t is the time in minutes

<em>Find the value of the constant C</em>

we have the ordered pair (4,35)

substitute in the equation and solve for C

$35=Ce^{(-0.0399*4)} +20$

$Ce^{(-0.0399*4)}=15$

$C=15/e^{(-0.0399*4)}$

$C=17.6$

Find the initial value of the object

we know that

The initial temperature is the value of f(t) when the value of t is equal to zero

For t=0

$f(0)=(17.6)e^{(-k*0)} +20$

$f(0)=17.6 +20$

$f(0)=37.6\ degrees\ Celsius$

therefore

The initial temperature of the object was 37.6 degrees Celsius

The initial temperature of the object was 37.6 (without units)

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3 years ago

What are the vertices resulting image A’, B’,C’,D’,E’ after rotating 90 degrees?

maksim [4K]

Answer:

your answers would be

a= (2,4)

b= (4,4)

c= (2,6)

d= (6,2)

e= (4,2)

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2 years ago

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just olya [345]

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Answer + Explanation:

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Answer:

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Step-by-step explanation:

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3 years ago