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3 years ago

3)who ever gets this right will get a brainlest

Mathematics

2 answers:

egoroff_w [7]3 years ago

8 0

Answer:

321.25

Step-by-step explanation:

katrin [286]3 years ago

7 0

The answer would be 321.25

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The points (4, 1) and (x, -6) lie on the same line. If the slope of the line is 1, what is the value of x?

myrzilka [38]

Slope formula is m= (y2-y1)/(x2-x1)

We know that slope is 1. So,

(-6-1)/(x-4) = 1

Then solve for x

-6-1 = x-4

x-4 = -7

x= -7+4

x= -3

4 0

3 years ago

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13-(-6) helpppp meee

german

Answer:

Step-by-step explanation:

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3 years ago

I need help please?!!!!!!!

Rina8888 [55]

Answer:

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3 years ago

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A sphere is just enclosed inside a right circular cylinder. If the volume of the sphere is 140 cm3, find the volume of the gap b

alexgriva [62]

-----------------------------------------------------------
Find Radius :
-----------------------------------------------------------
$\text {Volume of a sphere =} \dfrac{4}{3} \pi r^3$

$\dfrac{4}{3} \pi r^3 = 140$

$\pi r^3 = 140 \times \dfrac{3}{4}$

$\pi r^3 = 105$

$r^3 = \dfrac{105}{ \pi}$

$r = 3.22 \ cm$

-----------------------------------------------------------
Find volume of the cylinder :
-----------------------------------------------------------
$\text {Volume of the cylinder = } \pi r^2h$

$\text {Volume of the cylinder = } \pi ((3.22)^2(3.22 \times 2)$

$\text {Volume of the cylinder = } 209.77 \ cm^3$

-----------------------------------------------------------
Find volume of the gap :
-----------------------------------------------------------
$\text {Volume of gap = } 209.77 - 140$

$\text {Volume of gap = } 69.77 \ cm^3$

-----------------------------------------------------------
$\bf \text {Answer : } 69.77 \cm^3$
-----------------------------------------------------------

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3 years ago

Solve 2x+y=-1 and -x+y=-7 in substitution method

lesantik [10]

Answer:x=2 y=-5

Step-by-step explanation

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3 years ago