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4 years ago

What is the solution to the system of equations

1 answer:

7 0

The solution is the set of numbers that can be written in place of
all the variables and make all of the equations true.

If you're asking for the actual numbers, there's nobody in the world
who could find those without seeing the system of equations.

You might be interested in

Factorise x^2 - 8/X pls help

DochEvi [55]

Answer:

(x-2)(x^2 +2x +4)/x

Step-by-step explanation:

X minus two into X squared plus 2X plus 4 whole by X(this should be the right answer)

4 0

3 years ago

I just need help on part A

ki77a [65]

Answer:

Part A) see the explanation

Part B) The initial value is 60 meters and the slope is 40 m/min (see the explanation)

Step-by-step explanation:

Part A) see the attached figure with letters to better understand the problem

we know that

If two triangles are similar then the ratio of its corresponding sides is proportional

In this problem

triangles ACD and ABE are similar by AA Similarity Theorem

$\frac{AE}{AD}=\frac{BE}{CD}$ ----> equation A

Remember that the slope is equal to divide the change in the y-value by the change in the x-value

The slope AB is equal to $\frac{AE}{BE}$

The slope AC is equal to $\frac{AD}{CD}$

Rewrite the equation A

$\frac{AE}{AD}=\frac{BE}{CD}$

$\frac{AE}{BE}=\frac{AD}{CD}$

therefore

The slope of AB is equal to the slope of AC

Part B)

Let

x ---->the amount of time in minutes

y ----> the depth in meters

Find the initial value

we know that

The y-intercept or initial value is the value of y when the value of x is equal to zero

In this context the y-intercept is the depth of the shark when the time is equal to zero, so is the initial depth of the shark

Looking at the graph

For x=0

y=60 meters

therefore

The initial value is 60 meters

<em>Find the slope</em>

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

Take two points from the graph

C(0,60) and B(1,100)

substitute

$m=\frac{100-60}{1-0}$

$m=40\ m/min$

That means ---->The depth of the shark increases at the rate of 40 meters per minute

7 0

3 years ago

Jonathan borrowed $475 at a simple annual interest rate of 2% how many years will it take him to repay the loan if you wants to

Rasek [7]

you would times 475 by the percentage, which you can convert to a decimal my multiplying the percentage by 100.

475 * 0.02 = 9.50

Then divide the interest by the amount of interest per year:

38 / 9.5 = 4.

it would be 4 years

7 0

4 years ago

Can someone help me???

OlgaM077 [116]

Answer:

The answer is 60

105 net area with filled in shape

Subtract 45 = 60 net space.

The surface area is not 35 as surface area means net a net of a shapes area.

The reasons why is they filled in the shape and used the height x width

L x H = 7 x 5 = 35

but if we subtract 12 from 35 = 60/23 and we get 2.6

2.6 x 60 = 105 + 41 + 23 = 169

13 x 13 =169

14 x sides = 13 changes.

So therefore 13 changes in 14 shapes makes the product of 13 x 14 = 182

182 has 3 shapes so 182/3 =60

Step-by-step explanation:

8 0

3 years ago

Someone please help me answer this!!

Airida [17]

Answer:

c = 9.4m is the answer

Step-by-step explanation:

a (length of the telephone pole) = 9m

b (distance between the pigeon and the pole) = 3m

c = ?

According to the Pythagorean theorem,

a² + b² = c²

9² + 3² = c²

81 + 9 = c²

c² = 90

c = 9.4m

∴ the pigeon will fly 9.4m

8 0

3 years ago