2 years ago

What are the roots of the polynomial equation? x2+x−72=0

Mathematics

1 answer:

Alika [10]2 years ago

8 0

Answer:

x(x-1)=72 x=9

Step-by-step explanation:

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The cross-sectional areas of a right pyramid and a right cylinder are congruent. The pyramid has a height of five units, and a r

Mazyrski [523]

Answer:

the volume of the right cylinder is 1.8 times the volume of the pyramid

Step-by-step explanation:

The volume of a pyramid is

$V = \dfrac{1}{3} \times B\times H$

where the height of the pyramid is 5

$V = \dfrac{1}{3} \times B\times 5$

$V = \dfrac{5}{3} B \ units ^3$

On the other hand, the volume of a right cylinder is

V = BH

where the height of the right cylinder = 3 units

V = 3 B units³

Since we know that the cross-sectional areas are congruent, comparing the two-volume, we have the ratio of their volumes to be:

$\dfrac{V_p}{V_c}= \dfrac{\dfrac{5}{3}B}{3B}$

$\dfrac{V_p}{V_c}= \dfrac{5}{9}$

$9 V_p = 5 V_c$

$V_c = 1.8 \ V_p$

Hence, the volume of the right cylinder is 1.8 times the volume of the pyramid

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2 years ago

12.5% commission on every car sold salesperson sold a car for $17,500 what is the commission earned from the sale round answer t

alekssr [168]

Answer:

$2187.50 Commission for the sale

Step-by-step explanation:

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2 years ago

Please help with 4. And 5

Hoochie [10]

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3 years ago

Common factor of 10 and5

emmasim [6.3K]

Common factors include: 5 and 1

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2 years ago

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Y = x + 3<br> 4x + y = 18

Drupady [299]

Answer:

x=3

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

4x+x+3=18

(4x+x)+(3)=18(Combine Like Terms)

5x+3=18

Step 2: Subtract 3 from both sides.

5x+3−3=18−3

5x=15

Step 3: Divide both sides by 5.

5x/5 = 15/5

x=3

4 0

2 years ago