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Advocard [28]
3 years ago
10

Graph. Identify the solution: 1) x + y = 2 X-y=4

Mathematics
2 answers:
Dimas [21]3 years ago
3 0
(3,1) and hope this helps

Cloud [144]3 years ago
3 0

Answer:

X=3 y=-1

Step-by-step explanation:

X+y=2

X-y=4

so that means

y=X-4

substitute it in

X+X-4=2

2x-4=2

2x=2+4

2x=6

x=3

3+y=2

3+-1=2

y=-1

ways to check

3--1=4

double minus equal plus

3+1=4

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The ANSWERS and how to get them
Nookie1986 [14]

Answer: The answers for question 3 are x = 5, y = 13, and z = 10.

Now for question #4.  The answer for those are a = 6.40312, b = 6.70820, c = 9.43398, d = 5.29150, e = 4.89898, f = 7.54983.

You would solve all these problems by using this formula a^2 + b^2 = c^2 with a and b representing two of the legs and c representing the hypotenuse (the longest side.)  Simply input the respective numbers for the appropriate variables and solve for the missing variable.

Now lastly question #5.  We just need to solve for the diagonal length.  The answers are as follows.  5.66, 7.07, and 9.9.  You get these answers by using the formula for finding a diagonal in a square which is d=\sqrt{}2a

6 0
4 years ago
What is 3 minus 2 2/3
Tpy6a [65]
If you would like to know what is 3 minus 2 2/3, you can calculate this using the following steps:

3 - 2 2/3 = 3 - 8/3 = 9/3 - 8/3 = 1/3

The correct result would be 1/3.
4 0
3 years ago
Read 2 more answers
How much tip should you leave if you want to tip 25% at PF Chang on a $37.99 bill ??​
Naddik [55]

Answer:

Step-by-step explanation:

37.99 * 25%= 9.497 or $9.50 tip

3 0
3 years ago
the diameter of a cylinder is 14cm.the height of the cylinder is 9cm. calculate the Volume and curved surface area​
kicyunya [14]

Answer:

The volume is 1386 cm³ and curved surface area is 396 cm².

Step-by-step explanation:

Given that,

The diameter of a cylinder is 14 cm

Height of the cylinder is 9 cm

We need to find the volume and curved surface area​ .

If r is the radius, r = 14/2 = 7 cm

Volume of a cylinder is given by :

V=\pi r^2 h\\\\V=\dfrac{22}{7}\times (7)^2 \times 9\\\\V=1386\ \text{cm}^3

The curved surface area of the cylinder is given by :

A=2\pi r h\\\\A=2\times \dfrac{22}{7}\times 7\times 9\\\\A=396\ \text{cm}^2

So, the volume is 1386 cm³ and curved surface area is 396 cm².

3 0
3 years ago
3<br> Simplify:1/4 (15 – 6) +3 : 12<br> A. 2<br> B. 3<br> C. 41<br> D. 5<br> 7<br> 12
zalisa [80]

Answer:  5.25 or 5.5 [see note]

Step-by-step explanation:

1/4 (15 – 6) +3  <em><u>[I'm not clear what is meant by the " : 12," so I left it out.]</u></em>

1/4 (9) +3

9/4 + 3

2.25 + 3 = 5.25

===

If it is supposed to read

1/4 (15 – 6) +3/12

Then it would be

5.25 + 0.25 = 5.5

4 0
3 years ago
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