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3 years ago

Use the remainder theorem and the factor theorem to determine whether (b+4) is a factor of (b^3+3b^2-b + 12)

Mathematics

1 answer:

nevsk [136]3 years ago

3 0

B+4=0
b=-4
then put it in polynomial and if the answer was 0, then b+4 is its factor
-64+48+4+12=0

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5^11 times 5^3 = 5^?

postnew [5]

Answer:

$5^{13}$

Step-by-step explanation:

$5^{11}\times \:5^2$

Apply exponent rule : $a^b\times \:a^c=a^{b+c}$

$5^{11}\times \:5^2=5^{11+2}$

$5^{11+2}$

Add 11 +2 = 13

$=5^{13}$

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OAmalOHopeO

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7 0

1 year ago

Plz help me with it !

Kipish [7]

Answer: $\bold{-7+2\sqrt{14}+5\sqrt{7}-10\sqrt{2}}$

Step-by-step explanation:

$\dfrac{\sqrt7-5}{\sqrt7+\sqrt8}\bigg(\dfrac{\sqrt7-\sqrt8}{\sqrt7-\sqrt8}\bigg)=\dfrac{7-2\sqrt{14}-5\sqrt{7}+10\sqrt2}{7-8}=\dfrac{7-2\sqrt{14}-5\sqrt{7}+10\sqrt2}{-1}\\\\\\=\boxed{-7+2\sqrt{14}+5\sqrt{7}-10\sqrt2}$

8 0

2 years ago

BRAINLISET BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST

Vinvika [58]

Answer:

x = -15/2

Step-by-step explanation:

For this problem, we will simply use equation properties to solve for x.

2x - 5 = -20

2x - 5 + 5 = -20 + 5

2x = -15 ( Add positive 5 to both sides )

2x * (1/2) = -15 * (1/2)

x = -15/2 ( Multiply both sides by 1/2)

Hence, the solution to x is -15 / 2.

Cheers.

4 0

2 years ago

Read 2 more answers

Find the width of a rectangular prism if the volume is 546cm, the height is 7cm and the length is 13cm.

Margaret [11]

7x w x 13=546

(7x13)*w= 546

91w=546

91w/91= 546/91

w= 6

the width is 6cm

7 0

2 years ago

2. IQS = 4 and QR is a perpendicular bisector of TS , determined which of the following claims is true

Pavel [41]

Answer:

RS=5 TRUE

RS=4 FALSE (it’s 5)

ST=10 FALSE (it’s 8)

QR=4 FALSE (its 3)

Step-by-step explanation:

First, we have to determine the sides of the triangle.

4x-3=2x+1

4x-2x=1+3

2x=4

x=2

SO, RS=4x-3=4(2)-3=8-3=5

RT=2(x)+1=2(2)+1=5

QR=4²+b²=5². 16+b²=25. b²=25-16. b²=9. b=3

CLAIMS:

RS=5 TRUE

RS=4 FALSE (it’s 5)

ST=10 FALSE (it’s 8)

QR=4 FALSE (its 3)

3 0

2 years ago