Una cámara de refrigeración industrial tiene una temperatura de 2°C disminuye su temperatura a razón de 4°C por minuto ¿cuantos minutos le toma llegar a -18°C?​

Answers

Answer 1

Answer:

Tarda 5 minutos

Step-by-step explanation:

En un minuto baja a -2°C, en dos minutos baja a -6°C, en tres minutos baja a -10°C, en cuatro minutos baja a -14°C, en cinco minutos baja a -18°C

ESPERO TE AYUDE ;)


Related Questions

rick believes the two expressions 4(3a-3) +2a and 14a-3 are equivalent. is he correct? explain why or why not?

Answers

12a-12+2a = 14a-3
14a-12 = 14a-3

So he’s not correct.

Answer:

no

Step-by-step explanation:

4(3a-3)+2a when you expand youget

((4x3a)-(4x3)) + 2a = 12a - 12 + 2a then we collect the like term first 12a + 2a - 12

14a -12

therefore 14a - 12 is not equal to 14a- 3

please help me ASAP!

Answers

12.50 dollars per hour, because at 4 hours you’re earning 50, so 50/4 is 12.50 or the unit rate.

What is the approximate volume of the cylinder?

Answers

Answer:

V ≈ 509 m3 ← with  3.14 for π =2462 feet³

Step-by-step explanation:

I hope I helped, This is my math just round up :)

i have to solve for H​

Answers

Answer:

h = [tex]\frac{3v}{\pi r^{2} }[/tex]

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

a) What is the name of the line marked a?
b) What is the name of the line marked b?
c) What is the name of the line marked c?
d) What is the name of the line marked d?

Answers

a = tangent
b = radius
c = diameter
d = chord

Answer:

Step-by-step explanation:

raduis and diameter.


Dante buys his lunch every day at school. After 15 days, Dante has spent $37.50 on school
lunches. At this rate, how much did Dante spend on school lunches after 5 days?

Answers

Answer:

12.5

Step-by-step explanation:

37.50÷15=2.5

2.5×5=12.5

Answer: $12.50

Step-by-step explanation:

You have to divide 37.5 by 15 which is 2.5 then multiply that by 5 which is 12.5.

will give 100 points

Answers

Answer:

x=28

m<ACD=68°

Step-by-step explanation:

2x+(180-124)+(180-4x)=180

-2x+236=180

-2x=180-236

-2x=-56

x=28

m<ACD=180-4x=180-4(28)=180-112=68

Answer:

The answer is <ACD = 68°

Step-by-step explanation:

Using the property that the sum of interior angles in a triangle is equal 180°,we have:

<DAC + <ACD + <ADC = 180°

[tex]2x + (180 - 4x) + 56 = 180 \\ - 2x + 56 = 0 \\ 2x = 56 \\ x = \frac{56}{2 } \\ x = 28[/tex]

Finally, calculating the angle <ACD, we have:

<ACD = 180 - 4x

<ACD = 180 - 4 . 28

<ACD = 180 - 112

ACD = 68°

here is the question then the answers

Answers

Answer:

Domain is all real numbers.

Step-by-step explanation:

Domain is the x-values, as you see the function goes on forever on the x-axis because of the arrows.

Does this system have one
olution,
5x + 3y = 1
35x + 21y = 2
Choose the correct answer below.
o One solution
0 Infinitely many solutions
O No solution

Answers

Answer:

infinitely many solutions cuz in mathmatices any problem has solution

What is -5 more than 2?

Answers

2 is more because -5 is in the negatives and 2 is in the positives

Step-by-step explanation:

no 2 is more than -5 because 2 is positive but -5 is negative

Alexandra is going to a carnival that has games and rides. Each game costs $3 and
each ride costs $4.50. Alexandra spent $54 altogether at the carnival and the number
of rides she went on is 7 more than the number of games she played. Graphically
solve a system of equations in order to determine the number of games Alexandra
played, 2, and the number of rides Alexandra went on, y.

PLEASE ANSWER ASAP

Answers

Answer:

Game =$6 and ride=$9, to solve is 3x+4y=54

x+y=15

Step-by-step explanation:

;)

what is the perimeter of this building?

Answers

Answer:

115 m

Step-by-step explanation:

4 + 9 + 6 + 4 = 23 cm

23 x 5 = 115 m

155, I’m not sure if the line without a number would be counted

Find the product. (2f – 1)^2 =​

Answers

Answer: 4f^2 -4f+1

Step-by-step explanation:

2f-1)^2

This is equal to

(2f-1) * (2f-1)

FOIL

first: 2f*2f = 4f^2

outer: 2f*-1 = -2f

inner: -1*2f = -2f

Last = -1*-1 = 1

Add them together: = 4f^2 -2f-2f+1

Combine like terms 4f^2 -4f+1

Answer:

(2f-1)(2f-1)

2f^2-2f-2f+1

2f^2-4f+1

Find the least common multiple (LCM) of 2x^4 – 6x^3 – 8x^2 and 4x^3 – 4x.
You can give your answer in its factored form.

Answers

Step-by-step explanation:

[tex] \underline{ \underline{ \text{Solution}}} : [/tex]

[tex] \text{1. \: First \: expression} : \tt{2 {x}^{4} - 6 {x}^{3} - 8 {x}^{2} }[/tex]

⤑ [tex] \tt{2 {x}^{2}( {x}^{2} - 3x - 4) }[/tex]

⤑ [tex] \tt{2 {x}^{2} \{ \: {x}^{2 } - \: (4 - 1)x - 4 \} }[/tex]

⤑ [tex] \tt{2 {x}^{2} \{ {x}^{2} - 4x + x - 4 \} }[/tex]

⤑ [tex] \tt{2 {x}^{2} \{ x(x - 4) + 1(x - 4) \} }[/tex]

⤑ [tex] \tt{2 {x}^{2} (x - 4)(x + 1)}[/tex]

[tex] \text{2. Second \: expression} : \tt{4 {x}^{3} - 4x }[/tex]

⤑ [tex] \tt{4x( {x}^{2} - 1)}[/tex]

⤑ [tex] \tt{4x(x + 1)(x - 1)}[/tex]

L.C.M = Common × Remaining

= ( x + 1 ) × ( x - 1 ) × ( x - 4 ) × 2x² × 4x

= 8x³ ( x + 1 ) ( x - 1 ) ( x - 4 )

[tex] \red{ \boxed{ \boxed{ \tt{Our \: final \: answer : \boxed{ \underline{ \tt \: 8 {x}^{3} (x + 1)(x - 1)(x - 4)}}}}}}[/tex]

Hope I helped !

Have a wonderful day / night !

▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁

5x + 10y = -5
-5 - y = 32

Answers

y= -27
x= 53

solving for y:

-5-y=32

add y to both sides

-y = 27

divide by -1

y= -27

solving for x

plug in -27 for y in the first equation

5x +10(-27) =-5

5x+ (-270) =-5

add 270 to both sides

5x= 265

divide by 5 on both sides

x= 53

2x-8

The number 2 is a constant in the expression.

a. True
b. False

Answers

Answer:

False

Step-by-step explanation:

2 is next to a variable making it a coefficient.

Answer:

False

Step-by-step explanation:

The constant is 8 because it stands alone and has a fixed value 2 does not stand alone and does not have a fixed value

The radius of a circle is 5 cm. What is the radius of another circle whose area is 25 times that of the first one?

Answers

Answer:

Step-by-step explanation:

a₁ = πr₁⁵ = 25π cm²

a₂ = 25(25π) = 625π cm²

r₂ = 25 cm

What is the best way to study Geometry?

Answers

Answer:

diagramming, knowing your properties well, understand and know the angles, and have a good math understanding

Step-by-step explanation:

hope this helps

Find the percent of decrease. Round to the nearest whole percent. 428 to 377

Answers

Answer:14

Step-by-step explanation:

I have one word to say. MATH.

Answers

I believe it’s c ^^
since you multiply the numerators and denominators.. so since the first fraction is 1/2 & the second is 3/4, you’d multiply it like:
1 x 3 & 2 x 4, giving you 3/8.

Pls help for my math class!

Answers

Answer:

i think it is b but i am not 100%

sorry if i am wrong

Step-by-step explanation:

In the diagram, which pair of angles are alternate interior angles?

O <2 and <5
O <1 and <7
O <5 and <3
O <7 and <4

Answers

The alternate interior angles shown are <3 and <5, as well as <2 and <8.

I hope this helped!

Answer:

ur answer would be

<2 and <5

step-by-step explanation:

hope this helps

10) using opposite operations solve for x

30 = - 6 x + 12

Answers

X=-3 that’s the answer your welcome

I REALLY need help! Solve the inequality. State the solution in inequality notation.
2(3x−4)+14>−2(−3x−5)+4x

Answers

Answer:

x<−1

Step-by-step explanation:

Answer:

x < -1

2(3x - 4) + 14 > -2(-3x - 5) + 4x

<=> 6x - 8 + 14 > 2(3x + 5) + 4x

<=> 6x + 6 > 6x + 10 + 4x

<=> 4x + 4 < 0

<=> 4x < -4

<=> x < -1

Name this polynomial by its degree: 3x² + 5x-3

Answers

Answer:

[tex]\boxed{\textsf {The given polynomial is a quadratic polynomial. }}[/tex]

Step-by-step explanation:

A polynomial is given to us and we need to make the polynomial by its degree . Here the given polynomial is 3x² + 5x -3 .

[tex]\sf\implies p(x)= 3x^2+5x-3 [/tex]

So here we can see that the highest power of the variable in the given polynomial is 2 . So the polynomial is a quadratic polynomial .

More to Know :-

When we equate this quadratic polynomial with 0 , it becomes a quadratic equation.

That is ,

[tex]\sf\implies p(x)= 3x^2+5x-3=0[/tex]

This is done in order to find the zeroes of the polynomial. The zeroes of the polynomial are the values for which the polynomial becomes 0 .

The name is a Quadratic polynomial

I need help with this

Answers

A and C is the correct answers

Evaluate the expression. √9 =?​

Answers

The square root of 9 is 3

please help!!!!! i’ve been stuck on this question

Answers

Answer:

30

Step-by-step explanation:

The angle for BOF is going to be 180.

So if the angle for COF is 150, then COB is going to be the complement angle.

This means it's 180 - 150 = 30.

Another submarine's descent can be represented as `y=-240x`, where u is the elevation and x is time in hours. How long will it take this submarine to make the descent (2,100 feet below the surface)?

Answers

Answer:

The time it will take is 8hours 45mins.

Step-by-step explanation:

Since y = –240x represents a submarine descent. We are looking for how long, that is the time, it will take for the submarine to make a descent of 2100. We know that y is the elevation, if it is descending it will be in the negative direction, making it -ve.

A descent of 2100 means y = –2100. Hence,

–2100 = –240x

x = –2100/–240 = 8.75hours = 8hours 45minutes. (0.75hours = 3/4hours = 3/4 x 60mins = 45mins).

40
9
41
Find the ratio for tan(A)
041/40
09/41
040/9
09/40
41/9
40/41

Answers

Find the ratio for tan 42/9

mag Aral ka wag ka mag hanap Ng sagot

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