3 years ago

Factor completely 5a2 + b. Prime a(5a + b) b(5a2) ab(5a + 1)

2 answers:

6 0

$\sf {5a^2+b~is~\boxed{\bf{prime}}}$

It is prime because it has no common factors in 5a^2 and b.

The answer is A<span>.</span>

Anika [276]3 years ago

6 0

$\left[\begin{array}{ccc}Prime\end{array}\right]$ is the correct answer.

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Find an equation of the sphere with center (4, −12, 8) and radius 10.

Lorico [155]

Answer:

Step-by-step explanation:

To find an equation of the sphere with center (4, −12, 8) and radius 10

$(x-4)^2+(y+12)^2+(z-8)^2 = 100$

intersection with xy-plane

Put z=0

$(x-4)^2+(y+12)^2+(0-8)^2 = 100$

$(x-4)^2+(y+12)^2 = 36$

(A circle with centre at (4,-12) and radius 6)

intersection with xz-plane

Put y =0

$(x-4)^2+(0+12)^2+(z-8)^2 = 100$

$(x-4)^2+(z-8)^2 = -44$

Sum of squares cannot be positive, so DNE

intersection with yz-plane

Put x=0

$(0-4)^2+(y+12)^2+(z-8)^2 = 100$

$(y+12)^2+(z-8)^2 = 84$

A circle in YZ plane with centre at y =-12 and z =8 and radius square root of 84

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2 years ago

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Lunna [17]

Answer:

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Step-by-step explanation:

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2 years ago

Which type of evidence uses information gained through research? A. empirical B. statistical C. anecdotal D. analogical

Effectus [21]

The answer is A. empirical.

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2 years ago

A line passes through the points (9,6) and (6,5). What is its equation in slope-intercept form?

Tju [1.3M]

Answer:

Y=X/3+3

Step-by-step explanation:

M= Y2-Y1/X2-X1

= 5-6/6-9

= -1/-3

= 1/3

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EXPLAIN

zvonat [6]

Answer:

50,000? This is my answer sorry if wrong

Step-by-step explanation:

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2 years ago