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alexgriva [62]
2 years ago
15

Please help me find answer. midpoints invloved

Mathematics
2 answers:
Nimfa-mama [501]2 years ago
7 0

Answer:

7x - 12 = 3x - 2

Step-by-step explanation:

katrin2010 [14]2 years ago
4 0

the answer is A) 8

Step-by-step explanation:

if that the midpoint, so 7x -12 = 2(3x-2)

do the equation and you can get x=8

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Whats the process you would use to find the volume of the shipping box ​
iren2701 [21]

Answer:

Find length, width and height of the shipping box.

Step-by-step explanation:

In order to find the volume of the shipping box, you should measure the lengths of all its dimensions, that is length, width and height.

7 0
3 years ago
Find the least common denominator of 11/20 and 9/70
Ierofanga [76]

Answer:

140

Step-by-step explanation:

3 0
2 years ago
A heat source transfers 3000 J/sec to a metal part surface. The heated area is circular, and the heat intensity decreases as the
Annette [7]

Answer:

The resulting power density is enough to melt the metal.

Step-by-step explanation:

Given data:

Power = P = 3000 J/sec

diameter = d = 3.5 mm

Solution:

As we Know that Area = A = π r² ---- (1)

where r is radius.

Also Radius =  \frac{diameter}{2}

Putting the values of radius, π = 3.14 in equation 1, we get

A = 3.14 x (\frac{d}{2})²

A = 3.14 x (3.5/2)²

A = 9.62 mm²

As 75% of heat is concentrated in circular area then Power P becomes

P = 3000 J/sec x 75 %

As J/sec = Watt = W and 75 % = 3/4

so P = 3000 W x 3/4

P = 2250 W

As power density is represented by the formula:

Power density = PD = P/A

where P is Power and A is area.

So,

PD = P/A

Putting the values of Power and Area in above equation, we get

PD = 2250 W / 9.62 mm²

PD = 234 W/mm²

So, this power density is sufficient to melt the metal.

8 0
3 years ago
Which expression is equivalent to -<br> -9x-1,-9<br> -1575/-3 ? Assume X+0.
DedPeter [7]

Answer:

-9x-1534

Step-by-step explanation:

Simplifying the equation given will result in this answer. They are equal in value.

Hope this helps!

6 0
3 years ago
You want to buy a phone that costs $500. You already saved $100, and you plan to save $40 every week. How many weeks would it ta
rodikova [14]

Answer:

it will take you 10 weeks to get to $500

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
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