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3 years ago

What is the sum? StartFraction 3 y Over y squared + 7 y + 10 EndFraction + StartFraction 2 Over y + 2 EndFraction

Mathematics

1 answer:

Bumek [7]3 years ago

6 0

Answer:

$\frac{x+5}{x+3}$

Step-by-step explanation:

hope this helps!

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A quantity b varies jointly with c and d and inversely with eWhen b is 18, c is 4, d is 9, and e is 6What is the constant of var

777dan777 [17]

Answer:

constant of variation = 3

Step-by-step explanation:

we know that b varies jointly with c and d

so:

b∝c∝d

and b varies inversely with e, so

b∝ $\frac{1}{e}$

and i will call the constant of variation k, this way we can make an equation for b in the following form:

$b=k\frac{cd}{e}$

this satisfy that b varies jointly with c and d (if b increases, c and d also increase) and inversely with e (if b increases, e decreases)

we know that when b is 18, c is 4, d is 9, and e is 6:

$b=18\\c=4\\d=9\\e=6$

substituting this in our equation for b:

$b=k\frac{cd}{e}\\ 18=k\frac{(4)(9)}{6}$

and we solve operations and clear for the constant of variation k:

$18=k\frac{36}{6}\\ 18=6k\\\frac{18}{6}=k\\ 3=k$

the constant of variation is 3.

4 0

3 years ago

Read 2 more answers

Ilia_Sergeevich [38]

Answer:

A. 5 to the power of negative 5 over 6

Step-by-step explanation:

$\sqrt[3]{5} \sqrt{5} /\sqrt[3]{5^5} =$
$5^{1/3+1/2-5/3}=$
$5^{1/2-4/3}=$
$5^{3/6-8/6}=$
$5^{-5/6}$

6 0

2 years ago

Is 8 positive or negative

Tamiku [17]

Answer:

8 is a positive number.

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Blackcap birds (Sylvia atricapilla) migrate out of Germany before wintertime. Prior to the 1960s, all members of a particular bl

UkoKoshka [18]

Answer:

D- The blackcaps will begin nesting at their wintering sites in Spain or the United Kingdom, resulting in a larger blackcap population migrating back to Germany after the breeding season has ended.

Step-by-step explanation:

By the inhabitants of Spain and the United Kingdom placing feeders out for the blackcaps, the birds in their nesting sites during the winter will have food to eat, meaning a bigger population of the Blackcaps when they return to their main home in Germany.

This best predicts the effect on the blackcap population if humans in the United Kingdom continue to place food in feeders during the winter.

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3 years ago

Shiraz want to create an equally tricky arithmetic sequence she wants the 5th term of the sequence to equal 11 and 50th Cham to

docker41 [41]

i dont have an idea :)

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3 years ago