H=l/l-2k make k the subject

Mathematics

1 answer:

strojnjashka [21]3 years ago

3 0

Answer:

$k=\dfrac{l(h-1)}{2h}$

Step-by-step explanation:

The given equation is :

$h=\dfrac{l}{l-2k}$ ....(1)

We need to find the value of k.

Cross multiplying equation (1)

$h(l-2k)=l\\\\hl-2hk=l\\\\hl-l=2hk\\\\k=\dfrac{l(h-1)}{2h}$

So, the value of k is equal to $\dfrac{l(h-1)}{2h}$ .

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(Q6) Decide if the function is an exponential function. If it is, state the initial value and the base. y= -4.8·4^x

topjm [15]

Answer:

Step-by-step explanation:

Exponential equation takes the form $y=a*b^x$ where

a is the initial value ( a ≠ 0), and
b is the base ( b ≠ 1)

The equation given in the problem can be written as $y=-4.8*4^x$ , so it is <em>an exponential equation, </em> where a = -4.8 and b = 4.

Thus we can say that the initial value = -4.8 and the base is 4

The correct answer is D

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3 years ago

Felicia brought 5

krok68 [10]

The expression $\frac{5}{9}$ ÷ 10 can be used to find the amount of water in each cup.

Step-by-step explanation:

Step 1; Felicia brought $\frac{5}{9}$ of a gallon of water to give to the track team. So the total amount of water she brought is $\frac{5}{9}$ gallons. So the options 10 × $\frac{5}{9}$ and $\frac{5}{9}$ × 10 cannot be the answers as they are more than the total amount of water.

Step 2; So to find the amount of water in each cup, we divide the total amount of water by the number of cups. The number of cups is 10. So the water in each cup is $\frac{5}{9}$ ÷ 10.

So the third option can be used to calculate the water she poured into a cup.

7 0

4 years ago

Read 2 more answers

02:32:00

german

The volume is given by

$V=\pi hr^2$