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3 years ago

What is equivalent to the product (x-4) (x+9)

Mathematics

2 answers:

murzikaleks [220]3 years ago

5 0

Answer:

x^2+5x-36

Step-by-step explanation:

x^2+9x-4x-36

zysi [14]3 years ago

5 0

Answer:

x²+ 5x - 36

Step-by-step explanation:

Given

(x - 4)(x + 9)

Each term in the second factor is multiplied by each term in the first factor, that is

x(x + 9) - 4(x + 9) ← distribute both parenthesis

= x² + 9x - 4x - 36 ← collect like terms

= x² + 5x - 36

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stiv31 [10]

Answer:

See attachment

Step-by-step explanation:

To see clearly the graph that represents

$f(x) = {x}^{2} + 3x + 2$

we rewrite in vertex form to get;

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The required graph is shown in the attachment.

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3 years ago

Are these proportion yes or no? 1/3 , 7/21 2/5 , 40/16 48/9 , 16/3

liq [111]

Answer:

1) yes

2) no

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Step-by-step explanation:

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3 years ago

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Oliga [24]

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2 years ago

Find the co-ordinates of the point of trisection of the line joining the points A(1,8) and B(4,2).

Licemer1 [7]

coordinates of the point are (2,6) and (3,4)

Answer:

Solution given:

let the given point be A(1,8) and B(4,2).

P and Q are the two points on AB such that

AP=PQ=QB=k

now

comparing AP and PB

AP=k

PB=2k

ratio of AP and PB = $\frac{1k}{2k}$ = ratio 1:2

now

finding p

for this

$(m_1,m_2)=(1,2)$

For AB

$(x_1,y_1)=(1,8)$

$(x_2,y_2)=(4,2)$

now by using division formula

$(x,y)=(\frac{m_1x_2+m_2x_1}{m_1+m2},\frac{m_1y_2+m_2y_1}{m_1+m2})$

$=(\frac{1*4+2*1}{1+2},\frac{1*2+2*8}{1+2})=(2,6)$

similarly

Q divides AB

Ratio of AQ and QB = $\frac{2k}{1k}$ = ratio 2:1

$(x_1,y_1)=(1,8)$

$(x_2,y_2)=(4,2)$

$(m_1,m_2)=(2,1)$

by using division formula

$(a,b)=(\frac{m_1x_2+m_2x_1}{m_1+m2},\frac{m_1y_2+m_2y_1}{m_1+m2})$

$=(\frac{2*4+1*1}{2+1},\frac{2*2+1*8}{2+1})=(3,4)$

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3 years ago

Mark each! Of the following equations as true or false. Explain or showing your reasoning!

Airida [17]

Answer:

False

True

Step-by-step explanation:

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8 0

2 years ago