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3 years ago

PLEASE PLEASE HELP ME

Mathematics

2 answers:

andreyandreev [35.5K]3 years ago

6 0

Answer:

Step-by-step explanation:

mixas84 [53]3 years ago

5 0

D is the answer I think

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Find the diameter of the circle with a circumference of 80 feet. Use 3.14 for pi. Round your answer to the nearest tenth.

Ber [7]

Answer:

Option B = 25.5 ft

Step-by-step explanation:

Circumference = 80 ft

C = 2πr

80 = 2 * (22/7) * r

80 = (44/ 7) * r

So, Radius (r) = 80 * (7/44)

= 12.72 Feet

--> Diameter = 2r = 2 * 12.72

= 25.45 Feet

Therefore, Answer = Option B = 25.5 Feet (Round off)

7 0

3 years ago

2p/9+5p/18-5/6=2/3+p/12+1/6

Murljashka [212]

$\frac{2p}{9} + \frac{5p}{18} - \frac{5}{6} = \frac{2}{3} + \frac{p}{12} + \frac{1}{6}$
$\frac{4p}{18} + \frac{5p}{18} - \frac{5}{6} = \frac{2}{3} + \frac{p}{12} + \frac{1}{6}$
$\frac{9p}{18} - \frac{5}{6} = \frac{4}{6} + \frac{1}{6} + \frac{p}{12}$
$\frac{p}{2} - \frac{5}{6} = \frac{5}{6} + \frac{p}{12}$
$\frac{p}{2} - \frac{5}{6} + \frac{5}{6} = \frac{5}{6} + \frac{5}{6} + \frac{p}{12}$
$\frac{6p}{12} = 1\frac{2}{3} + \frac{p}{12}$
$\frac{6p}{12} - \frac{p}{12} = 1\frac{2}{3} + \frac{p}{12} - \frac{p}{12}$
$\frac{12}{5} * \frac{5p}{12} = 1\frac{2}{3} * \frac{12}{5}$
$p = 4$

7 0

3 years ago

Choose the equation below that represents the line passes to the point (7,-2) an the slope of -3

katrin [286]

Hello there!
The answer is c because the equation that is being used is point-slope, which is:
y-y1=m(x-x1)
hope this helps

8 0

3 years ago

True or false: This system of equations has no solution.<br> y=2/12x+1 y=7/36x-2

grin007 [14]

Answer:

false

Step-by-step explanation:

because there is no solution or answer

4 0

3 years ago

Identify the radius and center.<br><br><br> x^2 + y^2 + 2x + 4y + 1 = 0

melamori03 [73]

Answer:

Center:-1,-2

Radius: 2

Step-by-step explanation:

Ok, get the form of a circle from this equation-

(x+2)^2+(y+2)^2=4

Since this is the form of a circle, I can figure out the center and the radius from here,

r=2

h=-1

k=-2

Center:-1,-2

Radius: 2

6 0

3 years ago