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irinina [24]
3 years ago
11

HELP ASAP PLEASE I DONT WANT TO FAIL

Mathematics
1 answer:
Alla [95]3 years ago
4 0

Answer:

$226.57

Step-by-step explanation:

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I need help on this, if anyone knows how to do this can you help me out pls
ASHA 777 [7]
<h3>Answer:  (3, 0)</h3>

=================================================

Explanation:

Let's isolate x in the first equation.

x-2y = 3

x = 3+2y

Then we'll plug this into the second equation

Afterwards, solve for y.

2x + 4y = 6

2(3+2y)+4y = 6

6+4y+4y = 6

8y+6 = 6

8y = 6-6

8y = 0

y = 0/8

y = 0

Use this to find x.

x = 3+2y

x = 3+2(0)

x = 3

The solution is therefore (x,y) = (3, 0)

If you were to graph both lines, then they would intersect at the location (3,0).

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

Checking the answer:

Plug x = 3 and y = 0 into the first equation.

x-2y = 3

3-2(0) = 3

3 - 0 = 3

3 = 3 that works

Repeat for the other equation

2x+4y = 6

2(3) + 4(0) = 6

6 + 0 = 6

6 = 6 that works as well

Both equations are true when (x,y) = (3,0).

The solution is confirmed.

6 0
2 years ago
Find the volume of a cylinder whose base has a diameter of 10 and whose height is 12. Use 3.14 for pi and round your answer to t
KengaRu [80]
The first answer is 942
3 0
3 years ago
What is the solution to the equation 2/3x-2=2/7
Lera25 [3.4K]

Answer:

x=  24 /7

Step-by-step explanation:

2 /3x−2=  2/7

add 2 both sides

multiply by both sides by 3/2.

5 0
2 years ago
Read 2 more answers
Solve x2-14x+21=0 by completing the square
ankoles [38]
x^2-14x+21=0\\\\x^2-2x\cdot7+7^2-7^2+21=0\\\\(x-7)^2-49+21=0\\\\(x-7)^2-28=0\\\\(x-7)^2=28\iff x-7=-\sqrt{28}\ \vee\ x-7=\sqrt{28}\\\\x=7-\sqrt{4\cdot7}\ \vee\ x=7+\sqrt{4\cdot7}\\\\x=7-2\sqrt7\ \vee\ x=7+2\sqrt7
4 0
3 years ago
PLS HELP! WILL GIVE BRAINLIEST!
Dvinal [7]

Answer:

I think the answer is 7.06cm

Step-by-step explanation:

cos28°=b(AB)/h(8)

AB=7.06cm

7 0
2 years ago
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