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Brums [2.3K]
3 years ago
12

What is the value of m2 -2mn+n2 for m=-2 and n=4? 0 0 -36 -4 04 36

Mathematics
1 answer:
GuDViN [60]3 years ago
5 0

Answer:

36

Step-by-step explanation:

Given

m² - 2mn + n² , substitute values

= (- 2)² - 2(- 2)(4) + 4²

= 4 - 2(- 8) + 16

= 4 + 16 + 16

= 36

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Juan is 1 1/4 feet shorter than maria. if maria is 1/3 foot taller than luis. if luis is 62 inches tall, how tall are maria and
Ghella [55]
J = m - 1 1/4 (ft).......j = m - 15 inches...because 1 1/4 ft = 15 inches
m = L + 1/3 (ft).......m = L + 4 inches....because 1/3 ft = 4 inches
L = 62 inches

m = L + 4
m = 62 + 4
m = 66 inches or 5.5 ft <==Maria

j = m - 15
j = 66 - 15
j = 51 inches or 4.25 ft <== Juan

7 0
3 years ago
Solve 2/3 X -1/5 &gt;1. X=?
Tresset [83]

Answer:

0 maybe?

Step-by-step explanation:

7 0
2 years ago
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uranmaximum [27]

Answer:

please explain your question, degree of what?

4 0
3 years ago
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ollegr [7]
I don't get how it would be a system of equations.
3 0
2 years ago
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the length and width of a rectangle are consecutive even integers. the area of the rectangle is 80 square units. what are the le
nadya68 [22]
X(x + 2) = 120sq units 

<span>Set it equal to 0 </span>
<span>x^2 + 2x - 120 = 0 </span>

<span>factor </span>
<span>(x + 12)(x - 10) </span>

<span>For the shorter side: </span>
<span>x - 10 = 0 </span>
<span>x = 10 </span>

<span>Now that you have x, solve for the longer side which we said was represented by </span>
<span>x + 2 </span>
<span>10 + 2 = 12 </span>

<span>Proof </span>
<span>A = L x W </span>
<span>120 = 10 x 12 </span>
<span>120 = 120 </span>
<span>true </span>

<span>Our length is 12 and our width is 10</span>
7 0
3 years ago
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