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3 years ago

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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Nookie1986 [14]

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4 years ago

What is 3 minus 2 2/3

Tpy6a [65]

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3 years ago

Read 2 more answers

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Naddik [55]

Answer:

Step-by-step explanation:

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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.

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3 years ago

3 Simplify:1/4 (15 – 6) +3 : 12 A. 2 B. 3 C. 41 D. 5 7 12

zalisa [80]

Answer: 5.25 or 5.5 [see note]

Step-by-step explanation:

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

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