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3 years ago

PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!! I CANNOT RETAKE THIS!!

Mathematics

2 answers:

siniylev [52]3 years ago

8 0

No yes yes yes no ; sol. when x=4 , f(x) = 0 ,so (x-4) is right answer.....

rewona [7]3 years ago

3 0

Answer: YES → (x + 2) (x - 4) (x + 4)

NO → (x - 2) (x + 6)

Step-by-step explanation:

The best way to answer this question is to factor the given polynomial and then look at the choices at the botom of your screeen.

f(x) = x³ + 2x² - 16x - 32

0 = x³ + 2x² - 16x - 32

= x²(x + 2) -16(x + 2)

= (x + 2)(x² - 16)

= ↓ (x - 4)(x + 4)

= (x + 2)( x - 4)(x + 4)

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SOLVE ALL THESE EQUATION BY USING THE METHOD SUBSTITUTION ALGEBRAICALLY HERE'S ARE ALL THE EQUATION:

pav-90 [236]

Answer:

See below ~

Step-by-step explanation:

Question 1

-7x - y = -1
y = 8x + 16

⇒ -7x - (8x + 16) = -1

⇒ -7x - 8x - 16 = -1

⇒ -15x = 15

⇒ x = -1

⇒ y = 8(-1) + 16 = 8

⇒ Solution = (-1, 8)

Question 2

3x + 4y = 0
y = -3x - 18

⇒ 3x + 4(-3x - 18) = 0

⇒ 3x - 12x - 72 = 0

⇒ -9x = 72

⇒ x = -8

⇒ y = -3(-8) - 18 = 6

⇒ Solution = (-8, 6)

Question 3 (not clear)

Question 4

-8x - 7y = 0
y = 6x

⇒ -8x - 7(6x) = 0

⇒ -8x - 42x = 0

⇒ -50x = 0

⇒ x = 0

⇒ y = 6(0) = 0

⇒ Solution = (0, 0)

Question 8

2x - 6y = -14
y = -5x - 19

⇒ 2x - 6(-5x - 19) = -14

⇒ 2x + 30x + 114 = -14

⇒ 32x = -128

⇒ x = -4

⇒ y = -5(-4) - 19 = 1

⇒ Solution = (-4, 1)

3 0

2 years ago

A. In the Example, what is 3/4 / 1/3 the unit rate for?

hoa [83]

Answer:

the unit rate for it would be 1/4

6 0

1 year ago

It takes 35 feet of ribbon to make a pin. you have 9 feet of ribbon. how many pins can you make

Setler [38]

None you do not even have 35 feet which would make just one pin

3 0

3 years ago

The difference bewteen -58 - 40

Korolek [52]

Answer:

-98

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

(a) The lake behind a dam has an area of 55 hectares. When the gates in the dam are open, water flows out at a rate of 75 000 li

GaryK [48]

Answer:

a) The diagram shows a hemisphere with radius 6 cm.

Calculate the volume.

Give the units of your answer.

(The volume, V, of s sphere with radius r is V = 4/3πr³)

b). The diagram shows a prism ABCDEF.

The cross-section is a right angled triangle BCD. BD = 10 cm, BC = 5.2 cm and ED = 18 cm.

(i) a) Work out the volume of the Prism.

b) Calculate the angle BEC

c) The point G lies on the line ED and GD = 7 cm. Work out angle BGE

(Cambridge Assessment International Education. 0580/42, October/November 2019, Q 4)

(a)

(b)(i)a

(b)(i)b

(b)(i)c

2. The diagram shows a sector of a circle of radius 3.8 cm.

The arc length is 7.7 cm.

(i) Calculate the value of y.

(ii) Calculate the area of the sector.

(Cambridge Assessment International Education. 0580/42, May/June 2019, Q 8b)

(i)

(ii)

7 0

2 years ago