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4 years ago

−2, −1, 0, 1 Which pair of numbers has a sum of zero? A . 1, −1 B. −2, 0 C.−2, 1 D.−1, 0

Mathematics

2 answers:

nekit [7.7K]4 years ago

8 0

Answer:

The correct answer i would think would be A. 1 + -1= 0

Step-by-step explanation:

ExtremeBDS [4]4 years ago

4 0

It would be A because 1 - 1 = 0

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How would you get 20/x to equal 25/10. Not in highschool. im in middle school. Also plz show work

Akimi4 [234]

Answer:

i think it would be 5

Step-by-step explanation:

if u really need it wait for another person to answer

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3 years ago

To vertoes of a rectangle gre

Mariana [72]

Answer:

we have standard deviation of 12 so 298-322 would be 34.1% times 2 which is 68.2%. We also have 12 more in a lower region and we can use normal distribution to find that it would be 13.6% + 68.2%

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3 years ago

Monthly sales of a particular personal computer are expected to decline at the following rate of S'(t) computers per month, whe

Len [333]

Answer:

$S(t) = -18t^\frac{5}{3}+2440$

Company will take approximately 14 months

Step-by-step explanation:

Given function that shows the change rate of computers,

$S'(t)=-30 t^{\frac{2}{3}}$

Where,

t = number of months

On integrating,

$\int S'(t) = -30\int t^{\frac{2}{3}} dt$

$S(t) = -30(\frac{t^{\frac{2}{3}+1}}{\frac{2}{3}+1})+C$

$S(t) = -30 (\frac{t^{\frac{2+3}{3}}}{\frac{2+3}{3}})+C$

$S(t) = -30(\frac{t^\frac{5}{3}}{\frac{5}{3}})+C$

$S(t) = -30(\frac{3t^\frac{5}{3}}{5})+C$

$S(t) =-18t^\frac{5}{3}+C$

According to the question,

S(0) = 2,440,

$\implies -18(0)^\frac{5}{3}+C=2440\implies C = 2440$

Hence, the required function,

$S(t) = -18t^\frac{5}{3}+2440$

If S(t) = 1,000,

$-18t^\frac{5}{3}+2440=1000$

$-18t^\frac{5}{3}=-1440$

$t^\frac{5}{3}=80$

$t = (80)^\frac{3}{5}\approx 13.86$

6 0

3 years ago

19 points if uu help meeee

DochEvi [55]

Answer:

It is 21

Step-by-step explanation:

It is not hard all you got to do is 25+6=21 hope it helps plz Mark me brainlest :)

4 0

3 years ago

Read 2 more answers

Jully bought 3 slices of cheese pizza and 4 slices of pepperoni pizza for $18.00. Christian bought 3 slices of cheese pizza and

andrew11 [14]

Answer:

$2.00

Step-by-step explanation:

You can form an equation with these statements, x being the price of cheese pizza and y being the price of pepperoni. Making the equation,

3x+4y=18

3x+2y=12

Solving the equation,

3x+4y=18

6x+4y=24

-3x=-6

x=2

y=3

Solving another way,

2y=6

y=3

x=2

Therefore, the answer is $2.00

8 0

3 years ago