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Sladkaya [172]
2 years ago
14

How many solutions does this system of equations have 5m-4=7m+8

Mathematics
1 answer:
Stels [109]2 years ago
5 0
Find value of m either add or subtract for m
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Please help me with this
Yuliya22 [10]
Answer is B. Bc it's 72/12 =.5
8 0
3 years ago
A company is constructing an​ open-top, square-based, rectangular metal tank that will have a volume of 49 cubic feet. What dime
yawa3891 [41]

Answer:

b = 4.6 ft

h = 2.3 ft

Step-by-step explanation:

The volume of the tank is given by:

b^2*h=49

Where 'b' is the length of the each side of the square base, and 'h' is the height of the tank.

The surface area can be written as:

A=b^2+4bh\\A=b^2+4b*({\frac{49}{b^2}})\\A=b^2+\frac{196}{b}

The value of b for which the derivate of the expression above is zero is the value that yields the minimum surface area:

\frac{dA}{db} =0=2b-\frac{196}{b^2}\\2b^3=196\\b=4.61\ ft

The value of h is then:

h=\frac{49}{4.61^2}\\h=2.31\ ft

Rounded to the nearest tenth, the dimensions are b = 4.6 ft and h = 2.3 ft.

7 0
3 years ago
X=v-w+u solve for u
katovenus [111]

Answer:

u = -v + w + x

Step-by-step explanation:

Solve for u:

x = u + v - w

x = u + v - w is equivalent to u + v - w = x:

u + v - w = x

Subtract v - w from both sides:

Answer: u = -v + w + x

4 0
3 years ago
Which is the graph of f(x) = 5(2)x?
Klio2033 [76]
It’s a because you have to calculate and do the formal slope
5 0
3 years ago
Read 2 more answers
Will mark Brainlist!
butalik [34]

Answer:

4,880

Step-by-step explanation:

33.2% x 14,700 = 4880 employes

8 0
3 years ago
Read 2 more answers
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