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4 years ago

6

HELP ME PLZZ I DONT UNDERSTAND THIS!!!!!!

1 answer:

sweet-ann [11.9K]4 years ago

4 0

Answer:

1/2

Step-by-step explanation:

y = kx

where k is the constant of proportionality

y = 1/2 x so k= 1/2

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What is the value of x if e^3x+6 = 8?

topjm [15]

We can write any number n in the form $e^{\ln(n)}$ , since $e^x$ and $\ln(x)$ are inverse functions, so that

$e^{3x+6} = 8 \iff e^{3x+6} = e^{\ln(8)}$

The bases are the same on both sides, so the exponents must be equal.

$3x + 6 = \ln(8)$

Solve for x :

$3x = \ln(8) - 6$

$x = \boxed{\dfrac{\ln(8) - 6}3}$

5 0

3 years ago

How do you divide fractions

OLga [1]

You have to flip the last fraction and multiple both the top by the top and the bottom by the bottom then you have to simply but just look that up or ask your teacher.

7 0

4 years ago

Read 2 more answers

Jessie sorted the coins in her bank. She made 7 stacks of 6 dimes and 8 stacks of 5 nickels. She then found 1 dime and 1 nickel.

diamong [38]

7x6=42 dimes
8x5=40 nickels

42+1=43 dimes
40+1=41 nickels

7 0

3 years ago

At what time is the cake done

svp [43]

<h2>Explanation:</h2>

Here we know that at 3:17 pm you started to bake the cake. The total revolution the minute hand on the clock makes is:

$\frac{5}{8}+\frac{13}{24}=\frac{7}{6} \ revolutions$

We know that:

$1 \ revolution ----------- 60min \\ \\ 7/6 \ revolutions -----------x$

Solving for x:

$x=\frac{7}{6}\times 60=70 minutes$

So it takes 70 minutes after you put the cake in the oven. But:

$70minutes=1h \ 10min$

Adding this to the initial time:

$3:17pm+1h \ 10min=4:27pm$

Finally, the cake is done at 4:27 pm, option C.

5 0

3 years ago

QveST [7]

Answer: 9 L

Step-by-step explanation:

Given

The dimension of the rectangular container is $40\times 30\times 25\ cm^3$

It is filled with $\frac{3}{5}$ of the height

Water present in the container

$\Rightarrow 40\times 30\times 25\times \dfrac{3}{5}\\\\\Rightarrow 18000\ cm^3$

Also, $1\ L=1000\ cm^3$

$\therefore 18,000\ cm^3=18\ L$

Now, half of the water is poured out

So, half is left

$\Rightarrow \dfrac{18}{2}=9\ L$

Thus, 9 L of water is left in the container

5 0

3 years ago