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3 years ago

10

X+y=6x-y=10the solution of the system is? ( , )

2 answers:

Kryger [21]3 years ago

8 0

Answer: Point Form: (8,-2)

Equation Form:x=8,y=-2

Step-by-step explanation:

Orlov [11]3 years ago

7 0

(8,-2). This is the correct answer because when you solve using elimination you substitute and get it

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I really need help guys can some one plz help me it's for 10 points

11111nata11111 [884]

Answer:

$\sqrt{8}----- 2units,2units$

$\sqrt{7} ------\sqrt{5}units,\sqrt{2}units$

$\sqrt{5}-------1unit,2units$

$3------2units, \sqrt{5}units$

Step-by-step explanation:

Use pythagorean's theorem to solve each pair individually.

The instructions say that you have the two sides (a and b) and you have to match it with their hypothenuse.

$Formula: c^2=a^2+b^2$

1. $a=\sqrt{5}, b=\sqrt{2}$

Plug this into the formula.

$c=\sqrt{(\sqrt{5} )^2+(\sqrt{2})^2 }$

The square here eliminates the roots.

$c=\sqrt{5+2}\\ c=\sqrt{7}$

2. $a=\sqrt{3}, b=4$

$c=\sqrt{(\sqrt{3} )^2+(4)^2}\\ c=\sqrt{3+16}\\ c=\sqrt{19}$

3. $a=2, b=\sqrt{5}$

$c=\sqrt{(2)^2+(\sqrt{5})^2 }\\ c=\sqrt{4+5}\\ c=\sqrt{9}\\ c=3$

4. $a=2, b=2$

$c=\sqrt{(2)^2+(2)^2}\\ c=\sqrt{4+4}\\ c=\sqrt{8}$

5. $a=1, b=2$

$c=\sqrt{(1)^2+(2)^2}\\ c=\sqrt{1+4}\\ c=\sqrt{5}$

7 0

3 years ago

In triangle ABC a=39 m,b=27 m and c = 42 m. Find the area

Agata [3.3K]

Answer:

MY BRAIN CANT PROCESS THIS!!!!

Step-by-step explanation:

5 0

4 years ago

Read 2 more answers

33 is 55% of what number

9966 [12]

Because percentage is the numerator divided by the denominator of a fraction times one-hundred, we can set up this equation:

$\frac{33}{x} =0.55$

Now, we cross multiply.

$33= 0.55x$

Next, we divide both sides by 0.55 to get x by itself.

x = 60

So, 33 is 55% of 60.

6 0

3 years ago

Read 2 more answers

HELP DUE AT 9:00 PM!

alina1380 [7]

A is 5,6 that is the answer for A gotta go but maybe someone else can help with the other ones

4 0

3 years ago

Read 2 more answers

a sleeping bag weighs 8 pounds. your backpack and sleeping bag together weigh 31 pounds. write an equation to determine whether

Luda [366]

31-8=23 pounds for the backpack.

8 0

3 years ago