3 years ago

Which of the following functions has a rate of change that stays the same? (1 point)

1 answer:

vfiekz [6]3 years ago

5 0

this is the answer y=19x-10

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Andre45 [30]

Answer: 140cm 2

Step-by-step explanation: 8 x 5 = 40 x 4 = 115 + 25 = 140

3 0

3 years ago

sattari [20]

By the binomial theorem,

$(2x+y)^4=\displaystyle\sum_{k=0}^4\binom 4k(2x)^{4-k}y^k=\sum_{k=0}^4\binom 4k2^{4-k}x^{4-k}y^k$

where

$\dbinom nk=\dfrac{n!}{k!(n-k)!}$

Then the coefficients of the $x^{4-k}y^k$ terms in the expansion are, in order from $k=0$ to $k=4$ ,

$\dbinom 402^{4-0}=1\cdot2^4=16$

$\dbinom412^{4-1}=4\cdot2^3=32$

$\dbinom422^{4-2}=6\cdot2^2=24$

$\dbinom432^{4-3}=4\cdot2^1=8$

$\dbinom442^{4-4}=1\cdot2^0=1$

3 0

3 years ago

Ganezh [65]

Step-by-step explanation:

7 0

4 years ago

VashaNatasha [74]

Well area triangler area is multiplied by 3 after you multiply the other numbers

5 0

3 years ago

shepuryov [24]

You can write the proportion

$20\div \dfrac{3}{5}=x\div 1$

In fact, if she waxes the floor at a constant rate, the amount of floor waxed and the time spent will be proportional.

Solving for x, we have

$\dfrac{3}{5}x=20 \iff x=20\cdot\dfrac{5}{3}=\dfrac{100}{3}$

8 0

3 years ago