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3 years ago

5

Solve the simultaneous equations. 3x-4y = 18 and 9x + 2y = 12. Write your final answer on one line in the form x = .... , y= ...

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2 answers:

Nat2105 [25]3 years ago

8 0

I don’t know lol just doing this to do it

qwelly [4]3 years ago

5 0

Answer:First one the x is (6, 0) and the y value is (0, -9/2)

for the second equation the x value is (4/3, 0) and they value is (0, 6)

Step-by-step explanation:

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According to The Wedding Report, Inc., the mean cost for a wedding in the United States is $28732 (as of November 2008). Suppose

Stella [2.4K]

Answer:

Following are the solution to the given points:

Step-by-step explanation:

$X = \text{cost of wedding}\sim \text{Normal}\ (\mu = 28732, \sigma= 1500)\\\\$

For point a:

$Probability\ = 0.00000359\\\\ \text{(Using Excel function:} =NORMDIST(22000,28732,1500,1)).$

For point b:

$Probability \ = 0.014678\\\\\text{(Using Excel function:} =1-NORMDIST(32000,28732,1500,1))\\\\$

For point c:

$Probability\ = 0.794614436 \\\\$

$\text{(Using Excel function:} \\=NORMDIST (30000,28732,1500,1)-NORMDIST(25000,28732,1500,1))\\\\$

For point d:

$Q_1 = 27720.26537 \\\\\text{(Using Excel function:} =NORMINV(0.25,28732,1500)) \\\\Q_3 = 29743.73463 \\\\\text{(Using Excel function:} =NORMINV(0.75,28732,1500)).$

For point e:

$IQR = Q_3 - Q_1 = 29743.73463 - 27720.26537 = 2023.469251.$

For point f:

$Top\ 10\% = 30654.32735 \\\\\text{(Using Excel function:} =NORMINV(0.9,28732,1500)).$

5 0

2 years ago

romanna [79]

Answer: The correct answer is the third option, (-3,-4).

Step-by-step explanation: You plug in 2x + 2 for y, given that y = 2x + 2.

2x+2 = x - 1

x = -3

Now, you plug in -3 for x in an equation.

y = -3 - 1

y = -4.

(-3, -4)

4 0

2 years ago

Read 2 more answers

5/8 times 12 and also simplified

Mars2501 [29]

0.63x12= 7.5 so the answer is 7.5

7 0

2 years ago

People keep on giving me different answers for this one, I really do need help please...

guajiro [1.7K]

Hi there!

So if BC and DA are the same, then BA and CD are also the same...

The only one that’s left is BD.

Therefore, the shortest side is BD.

5 0

2 years ago

Plssss helpppp.i need itt nowww

Inga [223]

Answer:

cant see from the light retake the photo

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers