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3 years ago

The ratio of the length of a rectangle to

Mathematics

2 answers:

Alex777 [14]3 years ago

8 0

Step-by-step explanation:

since the same number must be multiplied to both sides

the answer is D

because in D 4.5 is multiplied to both sides

I would appreciate if my answer is chosen as a brainliest answer

sveta [45]3 years ago

7 0

Answer:

Step-by-step explanation:

B. why? i dont know

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A restaurant is open 24 hours a day. The manager wants to divide the day into work shifts equal length. The shifts should not be

Scorpion4ik [409]

The shifts can be divided into 4 hours, 6 hours, 12 hours, 2 hours, and 1 hour

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3 years ago

a store has a sale where all shirts are sold at a discount of 20% if the regular price of the shirts is $20, how may shirts coul

Elena-2011 [213]

Answer:

15 shirts.

Step-by-step explanation:

A 20% discount means you still pay 80% of the price.

x represents the number of shirts that can be bought.

(20 x (1-0.2) )x = 240 or (20 x .8)x = 240

16 x = 240

x = 240/16 = 15

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3 years ago

Solve the formula for c<br> cd + z = m - cb

Vikki [24]

Cd + z = m - cb
cb + z - m = cb
z - m = cb + cb
z - m = c(d + b)

c = (m - z)/(d + b)

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3 years ago

Without actual division prove that x4 +2x3 -2x2 +2x -3 is exactly divisible by<br> x2 +2x-3

Brut [27]

Answer:

Step-by-step explanation:

$\displaystyle\Large\boldsymbol{} x^4+2x^3-2x^2+2x-3= \\\\\\x^4+2x^2(x-1)+2x-\underbrace{2-1}_{-3}= \\\\\\x^4-1+2x^2(x-1)+2x-2 = \\\\\\(x^2-1)(x^2+1)+2x^2(x-1)+2(x-1) = \\\\\\\underline{(x-1)}(x+1)(x^2+1)+2x^2\underline{(x-1)} +2\underline{(x-1)} =\\\\\\(x-1)((x+1)(x^2+1)+2x^2+2)=\\\\\\(x-1)(x^3+x^2+2x^2+x+2+1)=\\\\\\(x-1)(x^3+3x^2+x+3) =\\\\\\(x-1)( \underline{(x+3)}x^2+\underline{(x+3)})=(x^2+1)\underbrace{(x-1)(x+3)}_{x^2+2x-3}= \\\\\\(x^2+1)(x^2+2x-3) : (x^2+2x-3)=x^2+1$

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3 years ago

A line passes through the point (0,1) and has a positive slope. Which of these points could that line NOT pass through?

Maksim231197 [3]

Answer:

(-3, 1)

(5,-2)

Step-by-step explanation:

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3 years ago