All categories

1 year ago

Log(2t+4)=log(14-3t)

Mathematics

1 answer:

barxatty [35]1 year ago

4 0

Answer:

t = 2

Step-by-step explanation:

$2t + 4 = 14 - 3t$

$5t = 10$

$t = 2$

Checking:

$log(2(2) + 4) = log(8)$

$log(14 - 3(2)) = log(8)$

You might be interested in

HELPPP MEEE PLZZ ok so If i have 70$ dollars the amout is just right so i can buy 4kg of fish and 3kg of prawn so i bought it an

Kaylis [27]

Answer:

x = (66.50 - 4y) / 3

Step-by-step explanation:

Given that:

Amount had = $70

Change collected = $3.50

Total amount spent = $(70 - 3.50) = $66.50

Total amount used for purchasing prawn and fish:

Kg of fish = 4

Kg of prawn = 3

1 kg prawn will cost, x

If 1 kg of fish = y

(Total amount spent - cost of 4 kg fish) / Number of kg of prawn

($66.50 - 4y) / 3

x = (66.50 - 4y) / 3

5 0

2 years ago

Which expression is equivalent to 2cos^2(x/2)- cos(x)?<br> Edge 2020

olchik [2.2K]

Given:

The expression is

$2\cos^2(\dfrac{x}{2})-\cos (x)$

To find:

The expression which is equivalent to the given expression.

Solution:

We have,

$2\cos^2(\dfrac{x}{2})-\cos (x)$

We know that,

$\cos x=2\cos^2 (\dfrac{x}{2})-1$

Using this formula, the given expression can be written as

$2\cos^2(\dfrac{x}{2})-\left(2\cos^2(\dfrac{x}{2})-1\right)$

$=2\cos^2(\dfrac{x}{2})-2\cos^2(\dfrac{x}{2})+1$

$=1$

Therefore, the given expression is equivalent to 1.

4 0

2 years ago

Please help with the second question

saul85 [17]

Answer:

451,435,650

Step-by-step explanation:

mark brianliest plz :)

8 0

2 years ago

Jake bought some shirts for $6 each. Andy bought some shirts for $8 each. The boys spent the same amount of money on shirts. Wha

-BARSIC- [3]

Answer:

$24, $48, $72

Step-by-step explanation:

Given that :

Jake: cost per shirt = $6

Andy : cost per shirt = $8

Bith spent same amount of money on shirt purchase :

Amount of money they could have spent :

Obtain the factors common to both 6 and 8

Factors of :

6 : 6, 12, 18, 24, 30, 36, 42, 48, 54, 60, 66, 72

8 : 8, 16, 24, 32, 40, 48, 56, 64, 72

$24, $48, $72,....

4 0

2 years ago

2) For which value of P and W is P + W a rational number? P = 1/(sqrt(3)) And W = 1/(sqrt(6)) 2) P = 1/(sqrt(4)) and w = 1/(sqrt

fenix001 [56]

Answer:

P = 1/(sqrt(4)) and w = 1/(sqrt(9))

Step-by-step explanation:

Only the roots of perfect squares are rational numbers. 2, 3, 6, and 10 are not perfect squares, so their roots are irrational. Both 4 and 9 are perfect squares, so their roots are rational. The sum of rational numbers is a rational number.

$\dfrac{1}{\sqrt{4}}+\dfrac{1}{\sqrt{9}}=\dfrac{1}{2}+\dfrac{1}{3}=\dfrac{5}{6}\quad\text{a rational number}$

4 0

3 years ago