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4 years ago

28264855 round to nearsest 100

Mathematics

2 answers:

BaLLatris [955]4 years ago

5 0

<span>28 , 264 , 900 .

^ your welcomee . </span>

Liono4ka [1.6K]4 years ago

4 0

28264900 because 55 is more than 1/2 of 100 so you round up

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Please help asap im begging

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3 years ago

Write the equation of a circle with center at (3, -2), which also passes through the point (0, 2).

Airida [17]

$\text{The equation of acircle:}\\\\(x-h)^2+(y-k)^2=r^2\\\\(h;\ k)-center\\r-radius\\\\\text{We have center}\ (3,\ -2)\to h=3\ \text{and}\ k=-2.\\\\\text{The radius is the distance between the points} (3,\ -2)\ \text{and}\ (0,\ 2).\\\\\text{The formula of a distance between two points:}\\\\d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\\\\\text{Substitute:}\\\\d=\sqrt{(2-(-2))^2+(0-3)^2}=\sqrt{4^2+(-3)^2}=\sqrt{16+9}\\\\=\sqrt{25}=5\\\\Answer:\ \boxed{(x-3)^2+(y-(-2))^2=5^2\to\boxed{(x-3)^2+(y+2)^2=25}}$

3 0

4 years ago

Stephen read 278 pages in 7 weeks alice read 31 pages a week for 7 weeks. how many more pages did stephen read?

vagabundo [1.1K]

Answer:

61 more pages.

Step-by-step explanation:

31 times 7

= 217

278 - 217

= 61

Hope this helps!

5 0

3 years ago

I realllllly need help thankyou

kondaur [170]

Answer: The two correct answers would be 40 and 45.

Step-by-step explanation: The square root of 40 is 6.32 which is between our given values 6 and 7 it also can be represented as 2 sq rt 10 The sq rt of the second number 45 is 6.70 which is again between the 2 values. It can also be represented as 3 sq rt 5. Hope this helps!

6 0

3 years ago

The manager of a restaurant found that the cost to produce 200 cups of coffee is $65.00 , while the cost to produce 250 cups i

PIT_PIT [208]

Answer:

a). y = 0.25x + 15

b). x = 480 cups

Step-by-step explanation:

(a). Let the equation of the linear function passing through a point (x', y') is,

y - y' = m(x - x')

'm' = slope of the line

b = y-intercept

Two points lying on the linear function will be (200, 65) and (250, 77.5).

Slope of the line 'm' = $\frac{y_2-y_1}{x_2-x_1}$

m = $\frac{77.5-65}{250-200}$

= $\frac{12.5}{50}$

= 0.25

Therefore, equation of the line passing through (200, 65) and slope 0.25 will be,

y - 65 = 0.25(x - 200)

y - 65 = 0.25x - 50

y = 0.25x + 15

(b). For y = $135 we have to calculate the number of cups of coffee produced.

135 = 0.25x + 15

0.25x = 135 - 15

0.25x = 120

x = 480 cups

Therefore, 480 cups of coffee will be produced.

8 0

3 years ago