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OleMash [197]
2 years ago
9

How do you solve this equation: 80x =

Mathematics
1 answer:
Pepsi [2]2 years ago
7 0

Answer:

Divide by 80 on both sides

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Radius of 0.75 centimeters is rational or irrational
ella [17]
A radius of 0.75 would be rational because the decimal ends and does not repeat itself.
6 0
3 years ago
Solve using elimination. -7x – 5y = -4 7x + 9y = -4
Brut [27]
-7x-5y=-47x+9y=-4

combine like terms to cross out the 7x
solve for y, to get -2
plug it back in to one of the equations and x is 2

y=-2
x=2
5 0
3 years ago
An upper triangular matric is square matrix with all zeros below its daignal. A lower triangular matrix is a square matrix with
AleksandrR [38]

Answer:

U₂₁ and U₂₂ fits in the line of upper triangular

Step-by-step explanation:

As explain in the question

An upper triangular matric is square matrix with all zeros below its daignal. A lower triangular matrix is a square matrix with all zeros above its diagonal.

(as shown in the attached image)

(a)for all 3×3 upper triangular matirices U, verify that U2 is also upper triangular

for a matrices U (having a 3*3 matrix), assuming for example, U is given below:

U = \left[\begin{array}{ccc}1&2&3\\0&5&6\\0&0&9\end{array}\right]

the element in the upper triangular are 1,2,3,5,6,9 (U₁₁, U₁₂, U₁₃; , U₂₂, U₂₃, U₂₂)

while lower triangular are 0,0,0, the element in the lower triangular are (U₂₁, U₃₁,U₃₂)

U₂₁ and U₂₂ fits in the line of upper triangular

8 0
3 years ago
According to the text, which is not a main component of drawing?
julia-pushkina [17]
I think it's horizon
3 0
3 years ago
Can anyone please help me
STatiana [176]

Answer:

42°

Step-by-step explanation:

Sum of all the angles inside of any triangle is always 180°.

Therefore:

180 = y + 90 + 48

y = 180 - 90 - 48

y = 42°

5 0
3 years ago
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