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3 years ago

Daca un vas in forma de cub are aria unei fete de 900cm,atunci capacitatea vasului este de?

1 answer:

5 0

¡Hola!

¿La altura está incluida en este problema? Le pregunto porque me ayudaría a responder a su pregunta, ya que v = Bh, donde B es el área de la base

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Simplify ((7+sin^2 theta+cos^2 theta)/(4sin^2 theta + 4cos^2 theta))

tino4ka555 [31]

Answer:

Step-by-step explanation:

$\frac{7+sin^{2}\theta+cos^{2}\theta}{4sin^{2}\theta+4cos^{2}\theta}} = \frac{7+(sin^{2}\theta+cos^{2}\theta)}{4(sin^{2}\theta+cos^{2}\theta)}} =\frac{7+(1)}{4(1)}}=\frac{8}{4} =2$

$(sin^{2}\theta +cos^{2}\theta=1)\\$

7 0

3 years ago

What is the solution for 4x-4>12?

Scilla [17]

Step-by-step explanation:

$4x - 4 > 12 \\ 4x > 12 + 4 \\ 4 x > 16 \\ x > \frac{16}{4} \\ x > 4$

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4 years ago

What is 2 + 2? (joke)

andreev551 [17]

Answer:

Baby 2

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Two central angles are listed below.

luda_lava [24]

You have to put the two angles in the same units, because now the first one is in radians and the second one in degress.

To pass 1.38 radians to degrees you can use the ratio 180° / π radian = 1.

So 1.38 radian * 180° / 3,1416 = 79 °.

So the angle in the Column A is 2° wider than the angle in the Column B.

6 0

3 years ago

The number of bacteria can be represented by the equation A(t)=200(.75)^t, wherr A(t) is the amount of bacteria in grams and t i

kupik [55]

Answer:

Step-by-step explanation:

a. This is a decay function, since the final value (A) gets smaller and smaller as the days pass by.

b. The bacteria is decreasing by 75% per day exponentially.

c. In order to calculate the amount of bacteria in a week we simply substitute the variable t for 7 (7 days in a week) and solve for A

A = 200(0.75)^7

A = 26.7 bacteria after 1 week

d. In order to calculate this we need to substitute the variable A with 100 and solve for t

100 = 200(0.75)^t ... divide both side by 200

0.5 = 0.75^t

$\frac{ln(0.5)}{ln(0.75)}$ = t

2.4 = t

It will be half the initial amount after 2.4 days.

6 0

3 years ago