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2 years ago

HURRY PLEASE

Mathematics

2 answers:

Delicious77 [7]2 years ago

8 0

Answer:

Infinite solutions

Step-by-step explanation:

2x−7y=12 (1)

−x+3.5y=−6 (2)

(2) x = 3.5y + 6

(1) 2(3.5y+6) - 7y = 12

7y + 12 - 7y = 12

12 = 12 (a true statement)

Since the variable got eliminated and we got a true statement, the system has infinitely many solutions.

One of the solutions:

(6,0)

tino4ka555 [31]2 years ago

6 0

Answer:

(6,0)

Step-by-step explanation:

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Do the following side lengths make a right traingle? 11, 60, 62 Yes or no?

nataly862011 [7]

Answer:

No but 11,60, and 61 do make a right triangle

3 0

2 years ago

PLZ HELP MEEEEEEEEEEE

SSSSS [86.1K]

Hello!
To solve equations of this sort, you have to multiply the length by the width, then that number by the height.
6 meters x 3 meters = 18 meters
18 meters x 9 meters = 162 meters
The correct answer is c

3 0

3 years ago

Read 2 more answers

1. Which of the following ordered pairs is a possible solution to the equation y = 3x - 2?

algol [13]

Answer: D

Step-by-step explanation:

5 0

2 years ago

Please solve these equations much appreciated

Reptile [31]

Answer:

Part c) $V=16,500\ m^3$

Part d) $V=93,312\pi\ mm^3$ or $V=292,999.68\ mm^3$

Step-by-step explanation:

Part c) Find the volume of the inverted rectangular pyramid

The volume of the rectangular pyramid is equal to

$V=\frac{1}{3}Bh$

where

B is the area of the rectangular base

h is the height of pyramid

Find the area of the base B

$B=(60)(15)=900\ m^2$

$h=55\ m$

substitute

$V=\frac{1}{3}(900)(55)$

$V=16,500\ m^3$

Part d) Find the maximum volume of tea in the tea cup

we know that

The volume of cylinder (tea cup) is equal to

$V=\pi r^{2}h$

we have

$r=36\ mm\\h=72\ mm$

substitute

$V=\pi (36)^{2}(72)$

$V=93,312\pi\ mm^3$ -----> exact value

Find the approximate value

assume

$\pi =3.14$

$V=93,312(3.14)=292,999.68\ mm^3$

7 0

2 years ago

Solve 3^2x+3=243 for x. A. x = 10 B. x = 2 C. x = 2/5 D. x = 1

telo118 [61]

I think its B but im not 100% sure

3 0

2 years ago