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AlladinOne [14]
3 years ago
8

Simultaneous equations 3x + y = 8 x - 3y = 11

Mathematics
1 answer:
balandron [24]3 years ago
4 0

Answer:

y = -5/2

Step-by-step explanation:

hope this helps believe it is the right answer :D

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Find the area and show work if you can.
baherus [9]

Answer:

The area of figure is 420 000 ft².

Step-by-step explanation:

You can seperate the diagram into 2 parts, top is trapezium and bottom is rectangle. Then you have to use the formula for each part :

Trapezium,

A =  \frac{1}{2}  \times (a + b) \times height

Let a = 600 ft,

Let b = 900 ft,

Let height = 200 ft,

A =  \frac{1}{2}  \times (600 + 900) \times 200

A = 150 \: 000 \:  \:  \:  {feets}^{2}

Rectangle,

A = base \times height

Let base = 900 ft,

Let height = 300 ft,

A = 900 \times 300

A = 270 \: 000 \:  \:  \:  {feets}^{2}

Lastly, you have add both areas together :

A = 150000 + 270000

A = 420 \: 000 \:  \:  \:  {feets}^{2}

8 0
3 years ago
Read 2 more answers
The table below shows the relationship between quiz scores and study time (in hours) for each 20-point
yaroslaw [1]

Answer:

C?

Step-by-step explanation:

8 0
3 years ago
Given f of x is equal to the quantity x minus 4 end quantity divided by the quantity x squared plus 13x plus 36 end quantity, wh
gavmur [86]

The simplified expression of the function f(x) =\dfrac{x-4}{x^2+13x+36} is

f(x) = \dfrac{x-4}{(x+9)(x+4)}. f(x) is increasing for all x > –4.The correct answer is option C.

<h3>What is a function?</h3>

A function is defined as a relation between the set of inputs having exactly one output each.

The function expression is given as:

f(x) =\dfrac{x-4}{x^2+13x+36}

Expand the denominator

f(x) =\dfrac{x-4}{x^2+4x +9x+36}

Factorize the denominator

f(x) =\dfrac{x-4}{x(x+4)+9(x+4)}

Factor out x + 9

f(x) = \dfrac{x-4}{(x+9)(x+4)}

The simplified expression of the function f(x) =\dfrac{x-4}{x^2+13x+36} is

f(x) = \dfrac{x-4}{(x+9)(x+4)}. f(x) is increasing for all x > –4

Read more about functions at:

brainly.com/question/1851758

#SPJ1

8 0
2 years ago
Lucy has 40 bean plants, 32 tomato plants and 16 pepper Plants. She wants to put the plants in rows with only one type of plant
My name is Ann [436]
There will be five rows of 8 bean plants per row, four rows of 8 tomato plants per row, and four rows of 4 tomato plants per row. I hope this helps!
4 0
3 years ago
Which of the following inequalities matches the graph? (1 point)
Aleksandr [31]

Answer: 2x + y < 7

Step-by-step explanation:

In the graph we can see that:

The line is a dashed line, and the shaded area is below the dashed line, then we will have something like:

y < a*x + b

We also can see that the slope of the line is negative, and that the y-intercept is +7

Then the inequality will be something like:

y < a*x + 7

Now we can see that the line passes through the points (0, 7) and (3, 1)

Then the slope will be:

a = (1 - 7)/(3 - 0) = -6/3 = -2

that is negative, as we already said.

Then we have:

y < -2*x + 7

we can rewrite this as:

2x + y < 7

This is the first solution shown.

7 0
2 years ago
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