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2 years ago

Can anyone help I’ll give you brainliest

Mathematics

2 answers:

inn [45]2 years ago

8 0

Answer:

$3580.50

Annual occurs once a year

elena-s [515]2 years ago

7 0

$80.50 you just multiply them and if you don't have the ability to enter the percent Mark then you don't have to move the decimal

hope this helps

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Graph a line with a slope of -3/4 that contains the point (2,3).

Agata [3.3K]

Answer:

y = -3/4x + 4.5

Step-by-step explanation:

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2 years ago

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2 years ago

The length of a rectangle is 2 centimeters less than its width. What are the dimensions of the rectangle if its area is 195 squa

JulijaS [17]

Answer:

Length=15 cm

Width=13 cm

Step-by-step explanation:

-Let x be the width dimension, the length will be (x-2)

-The area of a rectangle is given by the formula;

$A=lw$

#We substitute the length and width values and equate to the given area:

$A=lw\\195=x\times (x-2)\\\\195=x^2-2x$

#Rewrite as a quadratic and solve for x:

$195=x^2-2x\\\\x^2-2x-195=0\\\\\# Use \ the \ Quadratic\ formula \ to\ solve:\\\\x_1,x_2=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\\\\\therefore x_1,x_2=\frac{-(-2)\pm\sqrt{(-2)^2-4\times 1\times(-195)}}{2\times 1}\\\\\\x_1=15, x_2=-13$

Since dimensions are always positve, the x value is 15

x=15

x=13

Hence, the dimensions of the rectangle are length=15 cm and width=13 cm

8 0

3 years ago

How to know the derivative of a function by looking at the graphs?

ozzi

The derivative is the gradient.

At any local Max's or min's the derivative graph will cut the x axis.

For example a graph x^2
The derivative will have a positive gradient as the gradient is increasing at the lower values then at x=0 the gradient is 0 so the derivative graph will pass the point (0,0). Remember that the derivative graph will be linear.

To get more detail find the points the graph crosses the x axis and put into for a(x-q)(x-p)=0 you will have to solve for 'a' by finding a point on the graph and substituting it in. Then you can find the derivative of that function and graph it

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2 years ago

If I did 12x=96 and then of course did 12 divided by 12 to get x by itself, and then I do 12 divided by 96 which is 8, but what

Tresset [83]

You would divide and get a decimal

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2 years ago