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Mrac [35]
3 years ago
10

Please help me please please please help please help please help please help please help please help please help please help ple

ase help

Mathematics
2 answers:
DedPeter [7]3 years ago
5 0

Answer:

its between c or b

Step-by-step explanation:

I've done this test before

maks197457 [2]3 years ago
3 0

Answer:

B

Step-by-step explanation:

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Solve the system of equations using substitution
Ira Lisetskai [31]

Answer:

x=-1, y=9. (-1, 9).

Step-by-step explanation:

6x-y=-15

x+2y=17

--------------

y=6x-(-15)

y=6x+15

x+2(6x+15)=17

x+12x+30=17

13x=17-30

13x=-13

x=-13/13

x=-1

-1+2y=17

2y=17-(-1)

2y=17+1

2y=18

y=18/2

y=9

3 0
4 years ago
Water is an example of a(n) _____.<br> A.)element<br> B.)compound<br> C.)mixture<br> D.)atom
aleksandrvk [35]
<span>The answer is B. compound.
An element is composed of only one kind of atom. You cannot separate molecule into simpler substances. For example, hydrogen (H) and oxygen (O) are elements each made of only one atom. Two or more different atoms bonded to one another are a compound. For example, 2 atoms of hydrogen (H) and 1 atom of oxygen are bonded to one another and form water. Thus, water is compound. Mixtures consist of two or more substances that are not chemically combined. Solutions and colloids are mixtures.</span>
7 0
4 years ago
Read 2 more answers
Which of the following is the correct ratio for Sine?​
Lady_Fox [76]

Answer:

Sin = Opp/Hyp

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Perform the specified operations on the polynomials: Subtract 2x2−3xy+4y2from 3x2−5xy−6y2
tankabanditka [31]

Answer:

Solution to the given expression is (x^2 -10y^2 -2xy)

Step-by-step explanation:

Here, the given expression are:

P(x) = 2x^2- 3xy+4y^2\\Q(x) = 3x^2 - 5xy-6y^2

To Solve for : Q(x)  - P(x)

Now substitute the value of P(x) and Q(x) , we get:

Q(x) - P(x) = P(x) = (3x^2 - 5xy-6y^2) - (2x^2- 3xy+4y^2)\\= 3x^2 - 5xy-6y^2 - 2x^2+3xy-4y^2\\=x^2-10y^2-2xy\\\implies Q(x) - P(x) = (x^2-10y^2-2xy)

Hence solution to the given expression is (x^2 -10y^2 -2xy)

8 0
4 years ago
Which of the following is not a Pythagorean triple?
Vinil7 [7]

Answer: D,(11,61,62)

Step-by-step explanation:28,45,53

53²=28²+45²

2,809= 784+2,025

         = 2,809

53²=2,809

(28,45,53) is a Pythagorean triple

16,63,65

65²=16²+63²

4225=256+3969

        = 4225

65²=4225

(16,63,65) is a Pythagorean triple

13,84,85

85²=13²+84²

7225=169+7056

        =7225

85²=7225

(13,84,85) is a Pythagorean triple

11,61,62

62²=11²+61²

3,844=121+3,721

        =3,842

62²=3,844

(11,61,62) is not a Pythagorean triple

4 0
3 years ago
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