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1 year ago

Someone told me to get it done so im asking brainly

Mathematics

2 answers:

Tatiana [17]1 year ago

6 0

The didn’t distribute the -6 properly to the fraction the second part of solving should have been -6(4x)+((-6)-2/13)

Alex Ar [27]1 year ago

3 0

No because a negative times a negative = a positive and they left the 12/13 negative when it should’ve been changed to positive

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Please help me !!!!!!!!!!!!!!!!

Nutka1998 [239]

Answer: x=-10, y=13

Step-by-step explanation:

$-3x+2y=56\\-5x-2y=24$

+2y-2y = 0, eliminating y is much easier. So -3x-5x = -8x and 56+24 = 80

$-8x=80\\x=-10$

Substitute x in any equations but only 1 equation (Don't substitute in both equations.)

For me, I'd substitute x in -3x+2y=50

$-3(-10)+2y=56\\30+2y=56\\2y=56-30\\2y=26\\y=13$

So the answer is x = -10, y = 13

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2 years ago

Which expression is equivalent to 83⋅ 8−7

Dafna11 [192]

Next time add an image, but know that the expression is equal to 657 since..

83 * 8 -7

Use PEMDAS

664 - 7

657

6 0

2 years ago

Read 2 more answers

The slope of the line below is -3. Use the coordinates of the labeled point to find the point-slope equation of the line.

muminat

Y-___enter y-coordinate of the point here= -3(x-__enter the x-coordinate here)

4 0

2 years ago

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Blababa [14]

Answer:

$P(A\textrm{ and }B)=\frac{3}{14}$

Step-by-step explanation:

Given:

$P(A)=\frac{4}{7}$

$P(B|A)=\frac{3}{8}$

We know that, conditional probability of B given that A has occurred is given as:

$P(B|A)=\frac{P(A\cap B}{P(A)}$ . Expressing this in terms of $P(A\cap B)$ , we get

$P(A\cap B)=P(B|A)\times P(A)$

Plug in the known values and solve for $P(A\cap B)$ . This gives,

$P(A\cap B)=P(B|A)\times P(A)\\P(A\cap B)=\frac{3}{8}\times \frac{4}{7}\\P(A\cap B)=\frac{12}{56}=\frac{3}{14}$

Therefore, the probability of events A and B occurring is $\frac{3}{14}$ .

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2 years ago

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What is the direction and strength of the association between the variables?

STatiana [176]

Answer:

Strong Negative

Step-by-step explanation:

Took the test and know this is the right answer.

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2 years ago