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1 year ago

3xy - ² + 4x for x = -2, y = - and = 6?

Mathematics

1 answer:

Kitty [74]1 year ago

7 0

Answer:

See below

Step-by-step explanation:

Not sure what you are asking....do you want to know what y is when x = -2 and the equation = 6 ?

3 xy^2 + 4x = 6 or is that 3 xy^(-2) + 4x = 6

Could use some serious editing of your question if you are able ....

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Miguel owns 4 types of sport socks and 2 pairs of running shoes , how many combinations of socks and shoes does he have ?

Strike441 [17]

32 <span>combinations of socks and shoes does </span>

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2 years ago

Mrs. Gustafsson's English class is taking an exam that is made up of short-response questions and essay questions. There are 22

mestny [16]

Answer:

Short-response question = 20.

Step-by-step explanation:

Let x be number of short response questions and y be the number of essay questions.

We have been given that there are 22 questions that are worth 100 points in total. Each short-response question is worth 4 points, and each essay question is worth 10 points. Using our given information we can form a system of equations as:

$x+y=22...(1)$

$4x+10y=100...(2)$

Now we will solve our system of equations using substitution method.

From equation 1 we will get,

$y=22-x$

Upon substituting $y=22-x$ in equation 2 we will get,

$4x+10(22-x)=100$

$4x+220-10x=100$

$4x-10x=100-220$

$-6x=-120$

$x=\frac{-120}{-6}$

$x=20$

Therefore, there are 20 short-response questions on the exam.

5 0

2 years ago

What is the slope of (-6, -5), (-1, 1)

Aleks04 [339]

Answer:

Slope =y2−y1x2−x10−3105−12−31092−310⋅1092⋅10−345−115

Step-by-step explanation:

Slope =y2−y1x2−x10−3105−12−31092−310⋅1092⋅10−345−115

6 0

2 years ago

Read 2 more answers

Can someone please tell me which one is correct??? The first screenshot is the question and the second screenshot is the options

astraxan [27]

Answer:

43.5 unit^2.

Step-by-step explanation:

Area of the triangle

= 1/2 * base * height

= 1/2 * AB * AC.

AB = √ [(6-1)^2 + (6-8)^2] = √29

AC = √ [(8 - (-7))^2 + (1 - (-5)^2] = √261

So the area = 1/2 * √29 * √261

= 43.5

7 0

1 year ago

Which equation can pair with X- y=-2 to create a consistent and dependent system?

OLEGan [10]

D is the correct answer to this question

5 0

3 years ago