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1 year ago

Plsss help ill give brainly

Mathematics

2 answers:

Juli2301 [7.4K]1 year ago

8 0

Answer:

therefore, ( 6 , 7 ) is correct.

Step-by-step explanation:

if ( 8 , 5 ) - it will be an obtuse angle triangle.

if ( 2, 4 ) - it will be an obtuse angle triangle

if ( 6 , 7 ) - it will be an acute angle triangle

if ( 7 , 7 ) - it will be a right angle triangle

note: acute triangle is a triangle which has every angle less than 90°

maw [93]1 year ago

3 0

Answer:

7,7

Step-by-step explanation:

A vertex should be connected, so 7 as the x makes the most sense

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How to solve the system of equation 500y-600x=2800 , 400y-400x=2400 by elimination

tatiyna

Answer:

$x=2$ and $y=8$

Step-by-step explanation:

Given:

Equation 1:

$500y-600x=2800$

Simplifying the above equation by dividing both sides by 100

$\frac{500y-600x}{100}=\frac{2800}{100}$

$\frac{500y}{100}-\frac{600x}{100}=28\\\\5y-6x=28$

Equation 2:

$400y-400x=2400$

Simplifying the above equation by dividing both sides by 400.

$\frac{400y-400x}{400}=\frac{2400}{400}$

$\frac{400y}{400}-\frac{400x}{400}=6\\\\y-x=6$

Now the system of equation is:

(1a) $5y-6x=28$

(2a) $y-x=6$

Solving by elimination

Multiplying equation (2a) with $-5$

$-5(y-x)=-5\times 6$

(2b) $-5y+5x=-30$

Adding equations (1a) and (2b) in order to eliminate $y$

$5y-6x=28$

+ $-5y+5x=-30$

We get $-x=-2$

∴ $x=2$

Plugging $x=2$ in equation (2a).

$y-2=6$

Adding $2$ both sides.

$y-2+2=6+2$

∴ $y=8$

7 0

2 years ago

The 10 participants in an experiment had the following reaction times (in milliseconds). 242, 485, 485, 489, 497, 498, 500, 507,

Karolina [17]

Answer:

The outliers are 242 and 875

Step-by-step explanation:

Their numbers are far more away than the other numbers if you had it on a number line. Most of the numbers range from 480-510 (estimation of the range, sorry hehe), so the numbers that seem very far (almost excluded, I guess) would be the ones that are considered the outliers.

242 and 875 are over 100 spaces away from the other numbers, meanwhile 485,485,489,497,498,500,507,509 have shorter spaces in between.

I hope this helped! (Sorry, if it sounds confusing)

5 0

1 year ago

Solve the simultaneous equations <br> 2x-y=7 <br> 3x+5y=4

irinina [24]

Answer:

the answer is x= 3 and y= -1