Supongamos que el lector
está manejando su auto en un frío día de invierno (20ºF al exterior) y el motor se sobrecalienta (a unos 220ºF). Cuando se estaciona, el motor empieza a enfriarse. La temperatura T del motor
t minutos después de estacionarlo satisface la ecuación
ln a
T 20
200 b 0.11t
(a) De la ecuación, despeje T.
(b) Use la parte (a) para hallar la temperatura del motor después de 20 minutos 1t 202.

Answer: The velocity of the ball is 108.8 ft/s downwards.

Step-by-step explanation:

When the ball is dropped, the only force acting on the ball will be the gravitational force. Then the acceleration of the ball will be the gravitational acceleration, that is something like:

g = 32 ft/s^2

To get the velocity equation we need to integrate over time, to get:

v(t) = (32ft/s^2)*t + v0

where v0 is the initial velocity of the ball. (t = 0s is when the ball is dropped)

Because it is dropped, the initial velocity is equal to zero, then we get:

v(t) = (32ft/s^2)*t

Which is the same equation that we can see in the hint.

Now we want to find the velocity 3.4 seconds after the ball is dropped, then we just replace t by 3.4s, then we get:

v(3.4s) = (32ft/s^2)*3.4s = 108.8 ft/s

The velocity of the ball is 108.8 ft/s downwards.

Answer:

Step-by-step explanation:

x/15=6/12

x=15(6)/12

x=7.5

Step-by-step explanation:

A because the thing on -2 Is that

y=e^x+3.

The given graph of the function y = e^x

he transformation occur when we add c to the parent function y = e^x giving us a vertical shift c unit in the same direction as the sign.

The y axis of a coordinate plane is the vertical axis. When a function shifts vertically, the value of y changes.

The given parent function: y = e^x,

we can now graph the vertical shift alongside i.e, c=3

Then, the upward shift function is, y = e^x + c

Substitute the value of c=3,

then, the transformed equation becomes, y = e^x + 3

as it goes through (0,4).

∴The equation y = e^x + 3 represents the transformed function.

Answer:

y=e^x+3.

Step-by-step explanation:

Answer:

113 - 180 = 67 degrees

Step-by-step explanation:

113 degrees from 180 degrees equals 67 degrees

Answer: if god said what?

Step-by-step explanation:

Answer:

god said what? no? if no then I guess your not entering heaven

Answer:

b - 1/4 = 3 1/2

Step-by-step explanation:

b - 1/4 = 3 1/2

b - 1/4 = (3 + 1/2)

4b = 15

b = 15/

4

= 3.75

Answer:

15.7 percent of 80 = 12.56

Step-by-step explanation:

Percentage solution with steps:

Step 1: Our output value is 80.

Step 2: We represent the unknown value with $x$.

Step 3: From step 1 above,$80=100\%$

Step 4: Similarly, $x=15.7\%$.

Step 5: This results in a pair of simple equations:

$80=100\%(1)$.

$x=15.7\%(2)$.

Step 6: By dividing equation 1 by equation 2 and noting that both the RHS (right hand side) of both

equations have the same unit (%); we have

$\frac{80}{x}=\frac{100\%}{15.7\%}$

Step 7: Again, the reciprocal of both sides gives

$\frac{x}{80}=\frac{15.7}{100}$

$\Rightarrow x=12.56$

Therefore, $15.7\%$ of $80$ is $12.56$

Answer: I would say the angle would have to be around 85* because with 53 being on the bottom left corner and the 20* at the top and 85 at the left it would be close when you connect them

Step-by-step explanation:

Answer:

y = x + 8

Step-by-step explanation:

For 8cm of thread, 1cm of the bracelet may be produced. therefore being y(thread) = x(bracelet) with the addition of 8 (+8). Hope this helps!

Answer: The volume is 528 cubic inches

Can i have brainliest?

Answer:

528 Cubic Inches

Step-by-step explanation:

The first thing you would do is, since the equation states that the total height of the bench is 8 inches, is place 4 as the height of the rectangular prism piece of the bench. Next you would use of the dimensions of each of pieces of the bench to calculate the area of each piece respectively using the equation l*w*h. The equations are 4*4*25 which equals 400, 4*4*4 which equals 64, and 4*4*4 which equals 64. Next, you would add them all together which gives you a grand total of 528 cubic inches.

Step-by-step explanation:

[tex] \sin(60) = \frac{y}{10} \\ y = 5 \sqrt{3} [/tex]

Answer:

Step-by-step explanation:

2,28,80

Answer:

2

28

80

Step-by-step explanation:

Answer:

0 solutions

Step-by-step explanation:

8x + 2y = 14

8x + 2y = 4  

4 not equal to 14

Step-by-step explanation:

80%full

20% is still available

Answer:

just add them up

Step-by-step explanation:

Answer:

u(x) = –x + 3x2 – 8

Step-by-step explanation:

The functions are;

u(x) = –x + 3x2 – 8

v(x) = 2x2 + 8x3 + 9x

y(x) = x2 + 3x5 + 4

z(x) = 7x2 + 2x3 – 3

A quadratic function is a function that has the form  f(x) = ax2 + bx + c where a, band c are numbers with a not equal to zero. The maximum degree must be 2.

Among all the options, the one that matches the form is;

u(x) = –x + 3x2 – 8

Answer:

u(x)=-x+3x2-8

Step-by-step explanation:

just did the test edg 2021

Answer:

-20

Step-by-step explanation:

let x be the whole. 2/5 of x = -8 so -8 1/5 is -4. -4*5 to find the whole so its -20

Answer: The number is 35

If 2/5 of a number is 14, then we will perform a function of cross multiplication in order to determine the missing number.

Step-by-step explanation:

Let the missing number = y

To perform a cross multiplication, firstly, we multiply the numerator of first fraction by the denominator of the second fraction.

Secondly, we multiply the denominator of the first fraction by the numerator of the second fraction. Then, the resulting values are divided by each other to get a final numerical value.

Therefore, the missing number (y) will the denominator of the second fraction i.e. 14/y . The first fraction is 2/5.

Thus,

2/5 of 14/y

2/5= 14/y

(2 x y) = (5 x 14)

(2y) = (70)

2y = 70

Since we are looking for value of y, divide both sides by the value beside y

Thus,

2y/2 = 70/2

y = 35

Therefore, the missing number is 35

LEARN MORE:

2/5 of a number is 14. What's the number brainly.com/question/12161407

fraction brainly.com/question/6201432

KEYWORDS:

2/5 of a number is 14

fraction

cross multiplication

number

denominator

numerator

Given:

y is proportional to x.

y=20 and x=12.

To find:

The constant of proportionality and the equation for the proportional relationship.

Solution:

y is proportional to x.

[tex]y\propto x[/tex]

[tex]y=kx[/tex]              ...(i)

Where, k is the constant of proportionality.

Putting y=20 and x=12, we get

[tex]20=k(12)[/tex]

[tex]\dfrac{20}{12}=k[/tex]

[tex]\dfrac{5}{3}=k[/tex]

Putting [tex]k=\dfrac{5}{3}[/tex] in (i), we get

[tex]y=\dfrac{5}{3}x[/tex]

Therefore, the contestant of proportionality is [tex]k=\dfrac{5}{3}[/tex] and the equation for the proportional relationship is  [tex]y=\dfrac{5}{3}x[/tex].

9514 1404 393

Answer:

  x = {-0.44, 1.69}

Step-by-step explanation:

Multiply by the denominator to eliminate the fraction.

  3 = x(4x -5)

  4x^2 -5x -3 = 0 . . . . . subtract 3 and put in standard form

Using the quadratic formula with a=4, b=-5, c=-3, we have the solutions as ...

  [tex]x=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}=\dfrac{-(-5)\pm\sqrt{(-5)^2-4(4)(-3)}}{2(4)}\\\\x=\dfrac{5\pm\sqrt{73}}{8}\approx \{-0.443, 1.693\}[/tex]

Solutions rounded to hundredths are ...

  x = -0.44

  x = 1.69

_____

A graphing calculator can show the x-intercepts easily, so it works well to write the equation in the form

  f(x) = 0

  3/(4x -5) -x = 0

Answer:

5784

Step-by-step explanation:

Because 20 percent of 4820 is 964 and then you add 4820 and 964 to get 5784 :)

Answer: 13,663

Step-by-step explanation:

basically I multiply 427 and32 which u get 13,664 and then u subtract 1 and u get ur answe of 13663

Answer:

c

Step-by-step explanation:

Answer:

HL

Step-by-step explanation:

PQ = PR     {hypotenuse}

PS = PS      {Reflexive property, PS is the leg of the both triangles}

∠PSQ = ∠PSR = 90

So, HL postulate

Answer:

368<939`01^9292^91 ibtimes

Inscribed circle of a triangle is the largest circle, contained in the triangle.

To construct the inscribed circle of a triangle the in-center is required. the option 3 is the correct option.

Inscribed circle of a triangle is the largest circle, contained in the triangle.

Steps to construct the inscribed circle of a triangle-

Thus to construct the inscribed circle of a triangle the in-center is required. the option 3 is the correct option.

Learn more about the inscribed circle of the triangle here;

https://brainly.com/question/12199537

Answer:

x=6

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

2(3x−5)=4x+2

(2)(3x)+(2)(−5)=4x+2(Distribute)

6x+−10=4x+2

6x−10=4x+2

Step 2: Subtract 4x from both sides.

6x−10−4x=4x+2−4x

2x−10=2

Step 3: Add 10 to both sides.

2x−10+10=2+10

2x=12

Step 4: Divide both sides by 2.

2x=12

x=6

Answer:

Step-by-step explanation:

43/100 or  43%