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2 years ago

Do you need to regroup 34+8

Mathematics

2 answers:

gavmur [86]2 years ago

6 0

No you can just add 34+8 which will equal 42
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algol [13]2 years ago

3 0

No you do not have to regroup with 34+8 , which Happens to be 42.

you only regroup when you are dividing numbers and run out of high numbers so you have to use a low number so you have to regroup.

i hope this helps

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Step-by-step explanation:

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Answer:

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(b) The system of the equations $\left \{ {4x-6y\:=10} \atop {16x-24y\:=40}} \right.$ has many solutions $y=\frac{2x}{3}-\frac{5}{3}$

Step-by-step explanation:

(a) To find the solutions of the following system of equations $\left \{ {2x-3y\:=3} \atop {4x-6y\:=3}} \right.$ you must:

Multiply $2x-3y=3$ by 2:

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Subtract the equations

$4x-6y=3\\-\\4x-6y=6\\------\\0=-3$

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(b) To find the solutions of the system $\left \{ {4x-6y\:=10} \atop {16x-24y\:=40}} \right.$ you must:

Isolate x for $4x-6y=10$

$x=\frac{5+3y}{2}$

Substitute $x=\frac{5+3y}{2}$ into the second equation

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The system has many solutions.

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$y=\frac{2x}{3}-\frac{5}{3}$

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2 years ago

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3 years ago

An analyst from an energy research institute in California wishes to precisely estimate a 99% confidence interval of the average

Lena [83]

Answer:

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Step-by-step explanation:

Data provided in the question:

Confidence level = 99%

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Now,

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Here,

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on substituting the respective values, we get

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