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mart [117]
3 years ago
13

If a thermometer indicates 30 degrees Celsius, what is the temperature in degrees Fahrenheit?

Mathematics
2 answers:
Tpy6a [65]3 years ago
8 0

To calculate the Fahrenheit temperature:

-- Take the Celsius temp.
-- Multiply by 1.8 .
-- Then add 32 to the product.

   30°C  ==>  (30 x 1.8) = 54  ==>  54 + 32  =  86°F.
_____________________________________

To calculate the Celsius temperature:

-- Take the Fahrenheit temp.
-- Subtract 32 .
-- Multiply what's left by  0.55... (5/9 to be exact).

     86°F   ==>  (86 - 32) = 54   ==>  (54) x (5/9) =  30°C .
 
Bond [772]3 years ago
7 0

Answer:86F

Step-by-step explanation:

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Which is the rationalized form of the expression sqrtx/sqrtx+sqrt7
ArbitrLikvidat [17]

Answer:

(x - √7*√x) / (x - 7)

Step-by-step explanation:

I suppose your expression is √x / (√x + √7)

(√x * (√x - √7)) / ((√x + √7) * √x - √7)) = (√x * √x - √7 * √x) / (x - 7)

= (x - √7*√x) / (x - 7)

5 0
3 years ago
If a car travels 23 miles in 20 min what is the. car speed in miles per hour?​
Flauer [41]

Answer:

69 miles per hour

Step-by-step explanation:

car travels 23 miles in 20 min

So 20 min=20/60hour

=1/3. hour

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8 0
3 years ago
Factor f(x)=x4-x3-7x2+13x-6 completely. Then Sketch the graph
Dennis_Churaev [7]

ANSWER TO QUESTION 1


f(x)=(x-2)(x+3)(x-1)^2.



EXPLANATION


The function given to us is,


f(x)=x^4-x^3-7x^2+13x-6


According to rational roots theorem,


\pm1,\pm2,\pm3,\pm6 are possible rational zeros of  


f(x)=x^4-x^3-7x^2+13x-6.


We find out that,


f(-3)=(-3)^4-(-3)^3-7(-3)^2+13(-3)-6


f(-3)=81+27-63-39-6



f(-3)=6-6



f(-3)=0


Also




f(2)=(2)^4-(2)^3-7(2)^2+13(2)-6



f(2)=16-8-28+26-6



f(2)=6-6



f(2)=0


This implies that  


x-2 and x+3 are factors of



f(x)=x^4-x^3-7x^2+13x-6 and hence (x-2)(x+3)=x^2+x-6 is also a factor.



We perform the long division as shown in the diagram.



Hence,


f(x)=(x-2)(x+3)(x-1)^2.


ANSWER TO QUESTION 2

Sketching the graph

We can see from the factorization that the roots  

x=2 and x=-3 have a multiplicity of 1, which is odd. This means that the graph crosses the x-axis at this intercepts.


Also the root x=1 has a multiplicity of 2, which is even. This means the graph does not cross the x-axis at this intercept.



Now we determine the position of the graph on the following intervals,


x\le -3


f(-4)=(-4)^4-(-4)^3-7(-4)^2+13(-4)-6


f(-4)=150\:>0



-3\le x \le 1


f(0)=-6\:


1\le x\le 2


f(1.5)=-0.56\:



x \ge 2



f(3)=24\:>0



We can now use these information to sketch the function as shown in diagram



4 0
3 years ago
How to solve ( 3 × n ) + 4 = 32 ÷ 2
Bas_tet [7]
(3 * n) +4 = 16
(3 * n) = 12
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6 0
3 years ago
Read 2 more answers
What is 1,000 more than 37,542
Marina CMI [18]

Answer:

Hi, the answer is 38,542

Step-by-step explanation:


5 0
3 years ago
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