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3 years ago

Hi everyone,can someone please help me with this question please help me I really really need help please answer it correctly

Mathematics

2 answers:

Allisa [31]3 years ago

7 0

Answer:

the fourth which passed through (0;2)

konstantin123 [22]3 years ago

5 0

Answer:

graph 4

Step-by-step explanation:

If the slope is positive then the graph is linear increasing function.

If the slope is negative then the graph is linear decreasing function.

Graph 1) slope = 4/3

Graph 4) slope = -3/2

So, Graph 4 is linear decreasing function.

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3 years ago

Two pumps can fill a pool tank in 26 hours when working together. Alone, the second pump takes twice as long as the first to fil

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Answer:

Step-by-step explanation:

Let's say

d1 the outflow of the first pump

d2 the outflow of the second pump

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Since the second pump takes twice as long as the first to fill the tank,

$V=1=k*d_1*t\\V=1=k*d_2*(2*t)\\==>\ d_1=2*d_2\\\\$

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$V=1=k*(d_1+d_2)*26 \ ==> V=1=k*(3*d_2)*26 \ ==>k=\dfrac{1}{3*d_2*26} \\\\$

How long does it take the first pump alone to fill the tank:

$V=1=k*d_1*t=k*2*d_2*t=k*3d_2*26\\2*t=3*26\\\\t=\frac{3*26}{2} \\\\t=3*13\\\\t=39\ (hours)$

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3 years ago

What is 0.08 as a percent.

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Answer:

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Step-by-step explanation:

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