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Naddika [18.5K]
2 years ago
5

Can it be solve pq(r²+1)-r(p²+q²)

Mathematics
1 answer:
ivann1987 [24]2 years ago
3 0

Answer:

pqr²+pr-rp²+rq²

Step-by-step explanation:

pq(r²+1)-r(p²+q²)

pqr²+pr-rp²+rq²

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A pedestal for a statue is made with 405 cubic feet of concrete.
Pavlova-9 [17]

Answer:

45 square feet

Step-by-step explanation:

we know that

The volume of the pedestal (rectangular prism) is given by the formula

V=Bh

where

B is the area of the rectangular base of pedestal

we have

V=405\ ft^3\\h=9\ ft

substitute the given values in the formula and solve for B

405=B(9)

B=405/9\\B=45\ ft^2

5 0
3 years ago
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Lance has 1/2 of a pack of pencils in his desk and 1/3 of a pack of pencils in his backpack. How many packs of pencils does he h
slega [8]

Answer:

5/6 because 1/2 plus 1/3 is 5/6, meaning that B is the correct answer.

Hope this helps!

5 0
2 years ago
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An electrician needs 18.25 feet of wire for each outlet she installs. How man can she install with a 50 ft spool of wire?
jolli1 [7]

Answer:

2

Step-by-step explanation:

Ok, so if we know how much wire is needed for one outlet, we must figure out how many 18.25s fit into 50 ft of wire.

18.25*2=36.5

18.25*3=54.75 which is over 50 so it cannot possibly be more than 2.

3 0
3 years ago
Read 2 more answers
Please help me please please please
algol13

Answer:

20

Step-by-step explanation:

The lower quartile Q₁ is the value at the left side of the box, that is

Q₁ = 20

5 0
3 years ago
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Which is a solution to the system of equations?
zhannawk [14.2K]

Choices A, C, D have a y-value that is 5 more than the x-value, so those points are on the line defined by the first equation.


Choice D satisfies the requirement

... y = 2x - 13

... 23 = 2·18 - 13

... 23 = 36 - 13


The appropriate choice is ...

... D (18, 23)

6 0
3 years ago
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