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3 years ago

I need help on this. I've no idea about this. Please help me...

Mathematics

1 answer:

Mashcka [7]3 years ago

4 0

Answer:

Answers are below.

Step-by-step explanation:

Hope this helps:)

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3 years ago

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What is the y-intercept of 2x-y=10

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Answer:

( 0, -10 )

Step-by-step explanation:

the y intercepts is ( 0, -10 ) as u can see in this pic

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What does ''a over 3'' or a/3 mean?

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Step-by-step explanation:

It means "a divided by 3". You need to divide a by 3. You can also write it as "1/3a".

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3 years ago

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Juanita is 15 years old and her brother is 5. What is the ratio of Juanita's age to her brother's age?

eduard

15/5 = 3

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4 years ago

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Determine the area of the shaded region (grey) in the quadratic form.

NeX [460]

Answer:

The area of shaded region is: $13x^2+6x-15$

Step-by-step explanation:

We can see in the diagram that

$Length\ of\ gray\ rectangle = l_g = 3x+5\\Width\ of\ gray\ rectangle = w_g = 4x-3$

The area of rectangle is given by:

Area = Length * width

Now for gray rectangle

$A_g = l_g * w_g\\= (3x+5)(4x-3)\\= 3x(4x-3)+5(4x-3)\\= 12x^2-9x+20x-15\\=12x^2+11x-15$

For White Rectangle:

$Length = l = 5-x\\Width = w = x\\A_w = l * w\\A_w = (5-x)(x)\\= 5x-x^2$

Now,

The area of shaded region will be calculated by subtracting the area of white triangle from the gray triangle.

$A_s = A_g - A_w\\= (12x^2+11x-15) - (5x-x^2)\\=12x^2+11x-15-5x+x^2\\=12x^2+x^2+11x-5x-15\\=13x^2+6x-15$

Hence,

The area of shaded region is: $13x^2+6x-15$

4 0

3 years ago

I need help on this. I've no idea about this. Please help me...​

I need help on this. I've no idea about this. Please help me...