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11Alexandr11 [23.1K]
3 years ago
14

If two different planes intersect then they intersect at one and only one line true or false

Mathematics
1 answer:
ivanzaharov [21]3 years ago
8 0
True is the good answer .
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Collins is working.......
lesya [120]
Let n represent the amount Colin earned on Sunday.

On Sat. he earned n/2; on Sun. he earned n; and on Friday he earned (1/2)(n/2).

Then n/2  +  n  + n/4 = $70

Mult. all terms by 4 to eliminate fractions:

2n + 4n + n = $280

7n = $280  =>  n = $40

Colin earned n/2, or $20, on Saturday; n, or $40, on Sunday; and n/4, or $10, on Friday.

Note that $20 and $40 and $10 add up to $70, as they must.
4 0
3 years ago
PLEASE HELP!!
sp2606 [1]
Standard form is just putting (in this case) variables in alphabetical order. First we simplify- 2x+4=4y would become 1/2x+1=y. This is already in standard form, as numbers w/o variables come at the end. simplifying the next one is more tricky. first you get a variable/number alone-
9-2x-2y=4x+3
9-2y=6x+3
6-2y=6x
1-1/3y=x
1=x+1/3y
3=x+y
x+y=3
sorry if I was wrong and not of any help, But I do believe this is correct.
5 0
3 years ago
Read 2 more answers
The SI unit of work is ​
Tju [1.3M]

Answer:

<h3>\boxed{ \bold{ \blue{ Joule}}}</h3>

Step-by-step explanation:

The SI unit of work is Joule.

Further more explanation:

▪️\blue{ \mathsf{ {What \: is \: Work \: ?}}}

⇒Work done by a force acting on a body is defined as the product of force and displacement of the body in the direction of the force.

▪️\blue{ \bold{ \sf{What \: is \: SI \: unit \: ?}}}

⇒The system of units which is agreed by the international convention of scientists held in France in 1960 is called SI unit.

▪️\blue{ \bold{ \sf{What \: do \: you \: mean \: by \:  \: one \: joule \: work \: \: ?}}}

⇒One joule is the amount of work done when one Newton force displaces a body through one metre in its own direction.

Hope I helped!

Best regards!

5 0
3 years ago
Let g(x) be a vertical stretch of f(x)=3x-2 by a factor of 4. Write the rule for g(x).
Minchanka [31]
This should be g(x) = 12x - 8, as multiplying 3 by 4 increases the slope.
7 0
3 years ago
___% of 25 = 15<br> Pls help-
tankabanditka [31]

Answer: 60%

Step-by-step explanation: i hope it helps.

8 0
2 years ago
Read 2 more answers
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