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3 years ago

I don't get it plzzzzzzzzzzz helpppp

Mathematics

1 answer:

dmitriy555 [2]3 years ago

4 0

Here you go I hope it helps

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In slope intercept form, y = mx + b, what does each variable represent?

Roman55 [17]

y and x are the coordinate on the graph.

m is the slope.

b is the y-intercept.

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3 years ago

stich3 [128]

Answer:

7.0 m/s

Step-by-step explanation:

We can solve this using the 2 kinematic equations and you can use either:

$Vf=Vi+at\\\\vf^{2}=vi^{2}+2ad$

So let's use the first one.

Vi = initial velocity

Vf = final velocity

a = acceleration due to gravity (constant 9.8m/s²)

t = time

The marble is dropped so this means that it is in free fall. The initial velocity is always 0m/s.

We are given then the following:

d = 2.5m

t = 0.71s

Vi = 0 m/s

a = 9.8m/s²

So we plug in the values we know and solve:

$Vf = Vi + at\\\\Vf = 0 m/s + (9.8m/s^{2})(0.71s)\\Vf = 6.958m/s \cong 7.0m/s$

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3 years ago

Container a and b hold 11,875 liters of water altogether. Container b holds 2,391 liters more than container a holds. How much w

Viefleur [7K]

Container A holds x liters of water.
Container B holds 2391 liters of water more than container A, so container B holds x+2391 liters of water.
Container A and B hold 11875 liters of water altogether.

$x+x+2391=11875 \\
2x+2391=11875 \\
2x=11875-2391 \\
2x=9484 \\
x=\frac{9484}{2} \\
x=4742$

Container A holds 4742 liters of water.

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3 years ago

A population of amoebas in a petri dish will triple in size every 20 minutes. at the start of experiment the population is 800.

sp2606 [1]

If we are to derive the equation that models the growth of the amoeba, we make use of the general form:
p = po k^t
where po is the initial population
k is the multiplicative rate of change

From the problem
3po = po k^(20)
k = 1.06

The equation is
p = 800 (1.06)^t

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4 years ago

What is 75% of 8 hours and 15 minutes

jarptica [38.1K]

Approximately 6 hours and 18 minutes

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