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Anna [14]
2 years ago
9

This is for a friend and don't use the 2 answers until she is done mmmk, I think I made myself clear.

Mathematics
1 answer:
AlladinOne [14]2 years ago
3 0

Answer:

no because 2+2=4

Step-by-step explanation:

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Suppose y varies directly with x, and y = 12 when x = 2. What direct variation
neonofarm [45]

Answer:

y=24

Step-by-step explanation:

<u>Given:</u>

y=kx

<u>Substitute:</u>

\left \{ {{y=12} \atop {x=2}} \right. into y=kx

12=k\times2

<u>Swap the sides:</u>

<u />k\times2=12

<u>Divide both sides of the equation by the coefficient of variable:</u>

<u />k=\frac{12}{2}

<u>Cross out the common factor:</u>

<u />k=6

<u>Find the equation of the function:</u>

<u />y=6x

<u>Substitute:</u>

<u />y=6\times4

<u>Calculate the product or quotient:</u>

<u />y=24

4 0
2 years ago
Subtract the fractions. Write each difference in simplest form. <br><br><br><br> 8/9 - 5/6 =
Stolb23 [73]

Answer:

1/18

Step-by-step explanation:

Change the denominators to 18 to make like denonminators (make sure to multiply the top)

(16/18 - 15/18)

1/18

5 0
2 years ago
Read 2 more answers
I WILL GIVE BRAINLIEST
ryzh [129]

Answer:

See below. No image this time.

Step-by-step explanation:

1.

  • P(2, 8) → P'(-5, 1), which it went 7 units to the left, and 7 units down. Here is the equation: (x - 7, y - 7).

2.

  • R(-4, -9) → R'(-4, -2), which went 7 units up. Here is the equation: (x, y + 7).

3.

  • M(10, -3) → M'(3, 4), which went 7 units left, 7 units up. Here's the equation: (x - 7, y + 7).

4.

  • K(7, 11) → K'(0, 11), which went 7 units left. Here is the equation: (x - 7, y).
4 0
2 years ago
A fair coin will be tossed three times. The possible outcomes are shown below:
Kamila [148]
There are 3 choices out of 8 that include two tails. 3/8 = .375 = 37.5%

Hope this can help
5 0
2 years ago
Read 2 more answers
Find the solution of the differential equation dy/dt = ky, k a constant, that satisfies the given conditions. y(0) = 50, y(5) =
irga5000 [103]

Answer:  The required solution is y=50e^{0.1386t}.

Step-by-step explanation:

We are given to solve the following differential equation :

\dfrac{dy}{dt}=ky~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(i)

where k is a constant and the equation satisfies the conditions y(0) = 50, y(5) = 100.

From equation (i), we have

\dfrac{dy}{y}=kdt.

Integrating both sides, we get

\int\dfrac{dy}{y}=\int kdt\\\\\Rightarrow \log y=kt+c~~~~~~[\textup{c is a constant of integration}]\\\\\Rightarrow y=e^{kt+c}\\\\\Rightarrow y=ae^{kt}~~~~[\textup{where }a=e^c\textup{ is another constant}]

Also, the conditions are

y(0)=50\\\\\Rightarrow ae^0=50\\\\\Rightarrow a=50

and

y(5)=100\\\\\Rightarrow 50e^{5k}=100\\\\\Rightarrow e^{5k}=2\\\\\Rightarrow 5k=\log_e2\\\\\Rightarrow 5k=0.6931\\\\\Rightarrow k=0.1386.

Thus, the required solution is y=50e^{0.1386t}.

8 0
3 years ago
Read 2 more answers
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