3 years ago

Help me with number 2 and I’ll mark you brainliest please!

Mathematics

1 answer:

Svetach [21]3 years ago

7 0

Answer:

Point (0,-27) lies on the line.

Point (-9,0) does not lie on the line.

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Factor x2 – 3x – 28.

wariber [46]

Values needed to complete the X diagram are:

On top -28, On the bottom: -3 and On the sides: -7 and 4.

<h3>What do you mean by factorization?</h3>

An algebraic expression is factorised when it is written as the product of its factors.

The given equation is :

F(x) = x²-3x-28

finding factors,

= x²-7x+4x-28

= x(x-7) +4(x-7)

= (x-7)(x+4)

Given general equation is ax²+bx+c,

on comparing with x²-3x-28

a = 1

b = -3

c = -28

ac = 1*(-28) = -28

To know more about factorization please visit:

brainly.com/question/23153500

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The diagonal of a rectangular swimming pool measures 29 yards. If the length of the pool is 25 yards, which measurement is close

nirvana33 [79]

Answer:

Width of the pool = 15 yards

Step-by-step explanation:

Given that:

Length of diagonal of swimming pool = 29 yards

Length of the pool = 25 yards

Let,

w be the width.

This will form a right angled triangle where the diagonal will be hypotenuse.

Using Pythagorean theorem;

$(25)^2+(w)^2 = (29)^2\\625+w^2=841\\w^2= 841 - 625\\w^2 = 216$

Taking square root on both sides

$\sqrt{w^2}=\sqrt{216}\\w=14.70$

Rounding off to nearest whole number

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Hence,

Width of the pool = 15 yards

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