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Stolb23 [73]
3 years ago
7

What number should you add on both sides: x2+20x+___

Mathematics
1 answer:
WITCHER [35]3 years ago
5 0

Answer:

I would ad a 0on both sides to make the numbers even and both a two digit number

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A bag contains 6 gray tiles and 3 blue tiles. Jenny reached into the bag and picked a tile
Arisa [49]

Answer:

The probability that Jenny picked a gray tile with her second pick given that she picked a blue tile with her first pick = 0.25

Step-by-step explanation:

i.) there are 6 gray tiles and 3 blue tiles

ii) the probability that Jenny picked a blue tile first is given by

\frac{number\hspace{0.1cm} of \hspace{0.1cm} blue\hspace{0.1cm}  tiles }{total \hspace{0.1cm}number\hspace{0.1cm} of \hspace{0.1cm}tiles\hspace{0.1cm}  }  = \frac{3}{9}  = \frac{1}{3}

iii) the probability that Jenny picked a gray tile with her second pick without replacing the first tile\frac{number\hspace{0.1cm} of \hspace{0.1cm} blue\hspace{0.1cm}  tiles }{total \hspace{0.1cm}number\hspace{0.1cm} of \hspace{0.1cm}tiles\hspace{0.1cm}  } \times    \frac{number\hspace{0.1cm} of \hspace{0.1cm} gray\hspace{0.1cm}  tiles }{total \hspace{0.1cm}number\hspace{0.1cm } of \hspace{0.1cm}tiles\hspace{0.1cm} - 1 }  = \frac{3}{9} \times \frac{6}{8}  = \frac{1}{3} \times  \frac{3}{4} = \frac{1}{4} = 0.25

The probability that Jenny picked a gray tile with her second pick given that she picked a blue tile with her first pick = 0.25

6 0
3 years ago
Can someone please explain this question? I have a pic
Verdich [7]

Step-by-step explanation:

recall in a linear equation expressed in the form

y = mx + b,

m represents the slope or the rate of change in the value of y for a unit change in the value of x

b represents the y-intercept (i.e the value of y when x = 0)

If you compare these definitions to what was given in the question, the rate of  change in snowfall is given as 1/2 inches per hour. This is equivalent to the m value in our general equation above. Hence we can say that the rate of change in snowfall is equal to the slope of the graph.

The question also states that before the snow even started to fall (i.e when x=0 hours), there was already 8 inches on the ground. This is equivalent to the value of b in our general equation above. Hence we can say that the y-intercept is representative of the 8 inches that was already on the ground when the snow started falling.

5 0
3 years ago
Approximtely how many 27cubic volume cabinets will a container98,000cbic volume hold?
babymother [125]

Answer: 3630

Step-by-step explanation:

Given that:

Volume of container = 98,000 cubic volume

Volume of cabinet = 27 cubic volume

The number of cabinets which the container will. Hold equals:

Volume of container / volume of cabinet

= 98000 cubic volume / 27 cubic volume

= 3629.6296

The container will hold approximately 3630 27 cubic volume of cabinet.

5 0
3 years ago
How to determine the smallest absolute value
alexandr1967 [171]
The absolute value is basically the distance from zero, and distance is ALWAYS positive. After you removed your negatives, you need to just compare the values. For example. The smallest absolute value between -27 and 19 is 19. Hope this helped!
7 0
3 years ago
Question 1
allochka39001 [22]

Answer:

Step-by-step explanation:

Perimeter of quarter circle = r + r + \frac{1}{4}*2*\pi *r

            = 10 + 10 + \frac{1}{4}*2*3.14*10\\\\= 10 + 10 +  3.14*5\\\\\\= 10 + 10 + 15.70\\\\= 35.70 cm

2) d = 2*10 = 20 cm

Perimeter of semicircle = diameter + (1/2) * circumference of circle

                         = 20 +  \frac{1}{2}* 2*\pi *r\\\\= 20 + \frac{1}{2}*2*3.14*10\\\\= 20 + 3.14*10\\\\= 20 + 31.4\\\\= 51.40 cm

3) Perimeter of three-quarter =  r + r + (3/4)* circumference of circle

          = 10 + 10 + \frac{3}{4}*2*\pi *r\\\\= 10 + 10 + \frac{3}{4} * 2 * 3.14 * 10\\\\= 10 + 10 + 3 * 3.14 * 5\\\\= 10 + 10 + 47.1\\\\= 67.1 cm

5 0
3 years ago
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