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Ksenya-84 [330]

3 years ago

15

Can someone help me please?

2 answers:

r-ruslan [8.4K]3 years ago

5 0

Oh come on haha, .25 , 3/8 , 0.53 , 65% , 87.5% , 4/4 in that order

Pavlova-9 [17]3 years ago

5 0

Right to left
4/4 = 1
87.5% =.87
65%= between .6 (60%) and .7 (70)
.53 = 53% which is closer to .5 then .6
3/8= .375 which is 37.5 there for between .3 (30%) and .4 (40%) closer to .4
.25 is 25% = between .2 (20%) and .3 (30%)

hope that helps ad you able to understand that anything with just one number after the decimal is simply 10% 20% 30% and so on <span />

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The altitude of a triangle is increasing at a rate of 1 cm/min while the area of the triangle is increasing at a rate of 2 cm^2/

VARVARA [1.3K]

Answer:

The base is decreasing at 2 cm/min.

Step-by-step explanation:

The area (A) of a triangle is given by:

$A = \frac{1}{2}bh$ (1)

Where:

b: is the base

h: is the altitude = 10 cm

If we take the derivative of equation (1) as a function of time we have:

$\frac{dA}{dt} = \frac{1}{2}(\frac{db}{dt}h + \frac{dh}{dt}b)$

We can find the base by solving equation (1) for b:

$b = \frac{2A}{h} = \frac{2*120 cm^{2}}{10 cm} = 24 cm$

Now, having that dh/dt = 1 cm/min, dA/dt = 2 cm²/min we can find db/dt:

$2 cm^{2}/min = \frac{1}{2}(\frac{db}{dt}*10 cm + 1 cm/min*24 cm)$

$\frac{db}{dt} = \frac{2*2 cm^{2}/min - 1 cm/min*24 cm}{10 cm} = -2 cm/min$

Therefore, the base is decreasing at 2 cm/min.

I hope it helps you!

7 0

3 years ago

1 red marble, 3 green, 4 blue. What is the probability of picking a yellow marble?

Alexandra [31]

Answer:

zero probability, which means impossible

Step-by-step explanation:

there are no yellow marbles to select from

7 0

3 years ago

Can you help? I'm just too lazy to answer it lol

Usimov [2.4K]

Answer:

second answer should be corr3ect tell em if wrong

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

25(3x-4y)^2-40(9x^2-16y^2)+16(3x+4y)^2

Rama09 [41]

Work shown above! Answer above as well

6 0

3 years ago

Boats from all along the Atlantic coast were moored at a busy marina one summer day. Of the 14 boats at the marina, 7 were from

Bogdan [553]

Answer:

1/2 Or 7/14

Step-by-step explanation:

14 divided by 7 is 2, which means that 1/2 of the boats that came in were from Rhode Island.

6 0

3 years ago