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serg [7]
2 years ago
8

HELP ASAP I ONLY HAVE 6 MINUTES LEFT!!

Mathematics
1 answer:
MissTica2 years ago
6 0

Step-by-step explanation:

diameter=14ft

radius=7ft

circumference=2πr

=2×3.142×7

=43.988ft

=44ft(to the nearest whole number)

Area= πr2

=3.142×7×7

=153.958ft

=154ft(nearest whole number)

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1/4 of a pipe is white , 1/2 part of the remaining is blue. If the remaining part is black and the length of this black part is
hram777 [196]

Answer: 14 cm

Step-by-step explanation:

First take out 1/4 of the pipe, the portion that is white.  Then, half of three quarters of the pipe is blue.  1/2 of 3/4 is 3/8.  3/8(blue) + 2/8(white) = 5/8.  Thus, 3/8 of the pipe is black.  Thus, take 5.25(The length of the black portion) and multiply it by 8/3(reciprocal of 3/8) to get 14.

Hope it helps <3

(If it does, please give brainliest, only need 1 more for rank up :) )

5 0
3 years ago
Which values are solutions to × &gt; 7? A. × = 11 and × = 1 B. × = 0 and × = 8 C. × = 8 and × = 11 D. × = -8 and × = 0
ivanzaharov [21]

Answer:

C

Step-by-step explanation:

6 0
3 years ago
LOTS OF POINTS!?!?!?Write a linear function f with the values f(5)=−1 and f(0)=−1.<br> f(x)=
Brut [27]

Answer:

The euation of the linear function is:

  • y = -1

Step-by-step explanation:

As the function has the values

  • at x = 5, f(5) = -1
  • at x = 0, f(0) = -1

Thus, the two points are:

  • (5, -1)
  • (0, -1)

Finding the slope between (5, -1) and (0, -1)

\mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}

\left(x_1,\:y_1\right)=\left(5,\:-1\right),\:\left(x_2,\:y_2\right)=\left(0,\:-1\right)

m=\frac{-1-\left(-1\right)}{0-5}

m=0

We know that the slope-intercept form of the line equation is

y=mx+b

where m is the slope and b is the y-intercept

We also know that the y-intercept can be computed by setting x=0 and finding the corresponding value of y.

so at x = 0, y = -1

Thus, the y-intercept 'b' = -1

Now, substituting m = 0 and b = -1 in the slope-intercept form of the line equation

y = mx+b

y = 0x + -1

y = -1

Therefore, the euation of the linear function is:

  • y = -1
4 0
2 years ago
Which of the following expressions represents the LCM of 91 x^2y and 104 xy^3 ?
Allushta [10]
728x^2y^3 hope this helps
6 0
3 years ago
Cell phone companies estimate that the total number of text messages (t) since the beginning of the month can be modeled by t=40
GalinKa [24]

The desired number is the difference between the number of messages sent by the 16th day and the number sent by the 9th day:

... n = t(16) - t(9)

... n = (40×√16) - (40×√9)

... n = 40×(4 - 3) = 40


40 text messages were sent between the ninth and sixteenth day of the month.

4 0
3 years ago
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