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Naya [18.7K]
3 years ago
5

Can someone help me with this please ?

Mathematics
2 answers:
lara [203]3 years ago
5 0

Answer:

radius =  2 1/2 cm or 2.5 cm

Step-by-step explanation:

diameter = 5 cm

radius = 5/2 = 2 1/2 cm

Maru [420]3 years ago
3 0

Answer:

radius is 2.5 cm

hope it helps.

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4. Find the surface area. Help me please
pogonyaev

Step-by-step explanation:

2πrh+2πr²=surface area

2π(3)(6)+2π(3²)

36π+18π

54π

8 0
3 years ago
A red ant travels 9/8 inches in 3/4 minutes and 3 3/8 inches in 2 1/4 minutes what is the ants speed in inches per minute? What
I am Lyosha [343]

Answer:

1. 1.5 inches per minute

2. 90 inches per hour

Step-by-step explanation:

speed = \frac{distance}{time}

1. total distance covered = \frac{9}{8} + \frac{27}{8}

                                      = \frac{9+27}{8}

                                      = \frac{36}{8}

                                      = 4\frac{1}{2} inches

Total time taken = \frac{3}{4} + \frac{9}{4}

                           = \frac{3 +9}{4}

                           = \frac{12}{4}

                           = 3 minutes

The ants average speed = \frac{4.5}{3}

                                         = 1\frac{1}{2}

                                         = 1.5

The ants speed is 1\frac{1}{2} inches per minute.

2. Since;

60 minutes = 1 hour

3 minutes = x hours

x = \frac{3}{60}

  = \frac{1}{60}

  = 0.05 hours

Speed = \frac{4.5}{0.05}

           = 90 inches per hour

The red ants speed is 90 inches per hour.

3 0
3 years ago
A basketball court is a rectangle that is 28 m long and 15 m wide. A diagram on a coordinate plane shows a
ser-zykov [4K]

The answer is

B : 2%.

8 0
3 years ago
Which point satisfies the system of equations y = 3x − 2 and y = -2x + 3?
Elodia [21]

Meet of lines: y = 3x − 2  and  y = -2x + 3?

y=3x-2 has slope 3 and y intercept -2 (which means thru (0,-2)) , so that's the blue line through point D.

y=-3x+3 has slope -2 and y intercept 3, so the red line through points A, C and  D.

The point D(1,1) is the intersection of the lines.  Let's check that algebraically:

3x-2=3(1)-2=1=y, good

-2x+3 = -2(1)+3=1=y, good

Answer: D

8 0
3 years ago
Write the equation in slope-intercept. y - 7 = -3⁄4 (x +5)
denpristay [2]

Answer:

Step-by-step explanation: . y - 7 = -3⁄4 (x +5)

1. y = -3/4(x+5) + 7

2. y = -3/4x + -15/4 + 7

3. y = -3/4x + 13/4

4 0
3 years ago
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