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stira [4]
3 years ago
8

Three numbers are in consecutive arithmetic progression. if the sum of the numbers is 18 and their products is 120. find the num

bers​
Mathematics
1 answer:
MatroZZZ [7]3 years ago
8 0

Answer:

2 6 10

Step-by-step explanation:

have :

a + b +c  = 18

a*b*c = 120

a+c = 2*b => 3*b = 18 => b = 6

then a = 2, c = 10

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HELP MEEEE PLZ. <br> i need to Find the surface area and volume
lisabon 2012 [21]

Answer:

A ≈ 494.80 mm^{2}

V = 827.02 mm^{3}

Step-by-step explanation:

height ( <em>h </em>) = 13 mm

radius ( <em>r </em>)  = \frac{9mm}{2} = 4.5 mm

Surface area  = 2\pi rh + 2\pi r

                      = 2π(4.5)(13) + 2π(4.5)

                      ≈ 494.80 mm^{2}

Volume = \pi r^{2} h

<em>              </em>= \pi (4.5)^{2} (13)

             = 827.02 mm^{3}

6 0
3 years ago
Enter the equation in y=mx form to find the m as the slope​
Morgarella [4.7K]

Answer:

4

Step-by-step explanation:

look at the points that are intersected by the line. the first one is (2,8). put it in as Rise/Run to find the slope. you "rise" 8, and "run" 2

so 8/2 is the slope.

usually you need to simplify it.

8/2 = 4

4 0
3 years ago
A magic carpet is made with three different colors of yarn. The ratio of each color is shown below. 10 parts gold yarn, 7 parts
serious [3.7K]

Answer: 22.5 yards

Step-by-step explanation:

There are a total of 20 parts yarn. This means that 3/20 of the carpet is silver. So in order to compare this to the 150 meters of total yarn, you would set up this equation:

3/20 = x/150

Next, you cross multiply:

3*150 = 20*x or simplified would be 450 = 20x

Next, you divide both sides by 20 to get x by itself.

450/20 = 22.5, so x is equal to 22.5

This means you have 22.5 yards of silver in the carpet.

7 0
3 years ago
Help me please? c: I only have 4 questions left and I'm a bit stuck
prohojiy [21]
1.168 rounded off to nearest thousands = 1168
6 0
3 years ago
Wright an inequality for the graph
Lerok [7]

Answer:

Y >= ABS(x-5) + 1

Step-by-step explanation:

Any graph that forms a "V" involves absolute value. So what equation would give the vertex y=1 at x=5, ABS(X-5) + 1.

5 0
3 years ago
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