3 years ago

I WILL MARK BRAINIEST PLEASE HELP ASAP

Mathematics

2 answers:

never [62]3 years ago

8 0

6 lines in pretty sure this is the correct answer if not my apologies.

Naily [24]3 years ago

3 0

Answer:

Step-by-step explanation:

math

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Two buses are traveling to a state park. One bus leaves the terminal at 4:00 p.m. and travels at 40 miles per hour. The second b

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When second bus starts, first bus allready passed 40 miles, in 2 hours senocd bus will be on 120 miles distance, and first on 120 miles.
Answer: 2 hours

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4 years ago

Write the equation of the sphere in standard form. x2 + y2 + z2 + 8x − 6y + 4z + 20 = 0

Nuetrik [128]

Answer:

$(x+4)^2 + (y-3)^2 + (z+2)^2 - 3^2 = 0$

Step-by-step explanation:

You have to find a, b, c, r so that the polynomial expands to match the given equation.

$(x-a)^2 + (y-b)^2 + (z-c)^2 - r^2 =\\x^2-2ax+a^2+\\y^2-2by+b^2+\\z^2-2cz+c^2-r^2 =\\ x^2 + y^2 + z^2 + 8x - 6y + 4z + 20$

$(a^2+b^2+c^2-r^2-20)+\\x(-8-2a)+y(6-2b)+z(-4-2c)=0$

$-8-2a=0, 6-2b=0, -4-2c=0\\a=-4, b=3, c=-2$

$(-4)^2+3^2+(-2)^2-r^2-20 = 0$

$16+9+4-20=r^2$

$r^2=9$

$r=3$

$(x+4)^2 + (y-3)^2 + (z+2)^2 - 3^2 = 0$

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4 years ago

Complete the scaling for each number line or set of axes.<br> 32<br> 64

vodka [1.7K]

The answer will be C.

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2 years ago

Solve the equation=3x =15

kati45 [8]

3x = 15

x = 15/3

x = 5

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3 years ago

Read 2 more answers

HELP PLEASE PICTURE EXPLAINS EVERYTHING!!!!

allochka39001 [22]

Answer:

(a) Slope of Line 1 = 3

Slope of Line 2 = 3

Slope of Line 3 = -1/3

(b)

Line 1 and Line 2 = Parallel

Line 1 and Line 3 = Perpendicular

Line 2 and Line 3 = Perpendicular

Step-by-step explanation:

Please mark as brainliest! Thanks! Hope this helps!

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3 years ago