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3 years ago

VERY EASY I’m just dumb but it’s be great if I could get some help on how to do this for an upcoming quiz #4-7

Mathematics

2 answers:

vampirchik [111]3 years ago

6 0

I don’t really know which question you need me to solve but the first number in the coordinates, eg. (1,2) so number 1 is the gradient of the slope. number 2 is the y-intercept (the point where the slope passes through the middle (y-axis))

ElenaW [278]3 years ago

3 0

You know how to find the slope or no

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Jessica fills a cube shaped tank that has an edge of 70 cm with water from a tap. Water flows into the tank at a rate of 7L per

daser333 [38]

The volume of the tank is (70 cm)³ = 343,000 cm³.

Now,

1 mL = 1 cm³

1 L = 1000 mL

so we convert the given rate to

$\dfrac{7\,\rm L}{1\,\rm min} \cdot \dfrac{1000\,\rm mL}{1\,\rm L} \cdot \dfrac{1\,\mathrm{cm}^3}{1\,\rm mL} = \dfrac{7000\,\mathrm{cm}^3}{1\,\rm min}$

Then the time it will take to fill up the tank is

$343,000\,\mathrm{cm}^3 \cdot \dfrac{1\,\rm min}{7000\,\mathrm{cm}^3} = \boxed{49\,\rm min}$

6 0

1 year ago

If x = 2 and y = -3, what is the value of 2x^2 + 3xy – 2y^2?

sammy [17]

Answer: Given as,X=2 & Y=3,

now multiplying we get,

2xxy=2×2×3=12

Ans.) 12

Step-by-step explanation:

7 0

2 years ago

Each side of a square is increasing at a rate of 5 cm/s. At what rate (in cm2/s) is the area of the square increasing when the a

nikklg [1K]

Answer:

knkkl

Step-by-step explanation:

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4 0

2 years ago

Read 2 more answers

HELP!!!! Find the area. Simplify your answer.<br> 552-9s<br> 3t2+t

Tems11 [23]

Answer:

A = (5s^2t - 9st) (3t + 1)

Step-by-step explanation:

(5s^2 - 9s) (3t^2 + t)

= 15s2t^2 + 5s^2t - 27st^2 - 9st

= 5s2t (3t + 1) - 9st (3t + 1)

= ( 5s^2t - 9st) (3t+1)

6 0

2 years ago

Please I really need help on this

Ilya [14]

Answer:

40%

Step-by-step explanation:

She has sold 20 items total.

Refrigerators: 8/20 = 40%

Dishwashers: 1/20 = 5%

Dryers: 11/20 = 55%

So there is a 40% chance she will sell another refrigerator! hope this helps!!

3 0

2 years ago