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lubasha [3.4K]
3 years ago
15

Solve the equation 2m2 – 6m + 14 = 0.

Mathematics
2 answers:
Lesechka [4]3 years ago
7 0

Answer:

M=7

Step-by-step explanation:

Calculate the product

Collect like terms

Move the constant to the right

Divide both sides by -2

11111nata11111 [884]3 years ago
6 0

Answer: m= 7

Step-by-step explanation:

2m2-6m+14=0

4m-6m+14=0

-2m+14=0

-2m=-14

M=7

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The diameter of a wheel from a bicycle is 66 CM about how far will the wheel travel in one turn
castortr0y [4]

Answer:

If the outside diameter of the wheel is 66cm, it will travel 1 wheel circumference. Circumference is Pi x diameter = 3.14 x 66 = 207.24 cm.Step-by-step

Explanation:

If the diameter is of the wheel (without the tire) you need to calculate the actual diameter from the outermost edge of the tire.

8 0
2 years ago
A water trough is 9 m long and has a cross-section in the shape of an isosceles trapezoid that is 20 cm wide at the bottom, 70 c
ella [17]

Answer:

dv = surface area * dh

so

dv/dt = surface area * dh/dt

width at surface = 40 + (80-40)(30/40)

= 40 + 30 = 70 cm = 0.70 m

so

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so

.3 m^3/min = 6.3 m^2 * dh/dt

and

dh/dt = .047 meters/min or 4.7 cm/min

Step-by-step explanation:

7 0
3 years ago
a rectangular fish tank 60 centimeters by 15 centimeters by 34 centimeters is 1/3 full of water. find the volume of water needed
son4ous [18]

Answer:

20,400\ cm^{3}

Step-by-step explanation:

step 1

Find the volume of the tank

V=(60)(15)(34)=30,600\ cm^{3}

step 2

we know that

If the tank is 1/3 full of water

then

the volume of water required to completely fill the tank is equal to 2/3 of the tank capacity

so

(2/3)30,600=20,400\ cm^{3}

5 0
3 years ago
Nicki school day last 7 hours 20 minutes how many minutes does Nicki school day last explain how you found your answer
VLD [36.1K]

7 hours X 60 minutes = 420 minutes

420 minutes + 20 minutes = 440 minutes

7 0
3 years ago
Read 2 more answers
In a recent survey, 78% of students at Lincoln Middle School said they plan to attend a camp this summer. Write this percent as
prohojiy [21]

Answer:

<em>0.78</em>

Step-by-step explanation:

From the question, we are to represent 78% as a decimal

78%  = 78/100

78/100 = 78 * 1/100

78/100 = 78 * 0.01

78/100 = 0.78

<em>hence the percent written as a decimal is 0.78</em>

3 0
3 years ago
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