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2 years ago

What is an equation of the line that passes through the points (4,4) and (8.1)

Mathematics

1 answer:

andrey2020 [161]2 years ago

5 0

Answer:

y = - 3/4x + 7

Step-by-step explanation:

Use both points and find the slope:

m = (1 - 4) / (8 - 4) = - 3/4

Find the line, using point-slope form and point (4, 4):

y - 4 = - 3/4(x - 4)
y - 4 = - 3/4x + 3
y = - 3/4x + 7

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7. A cylindrical tank can hold 2279.64 cubic feet of water. The radius of the tank is 11 feet. What is the height of the tank?

aliina [53]

Answer:

r = 8.12

Step-by-step explanation:

The volume for a cylinder is V=πr^2h therefore,

v = 2279.64

h = 11ft

r = ?

2279.64 = πr^2 * 11

$\frac{2279.64}{11}= {\pi r^2} \\$

207.24 = πr^2

$\frac{207.24}{\pi} =r^2\\\\66 = r^2\\\\\sqrt{66} = r\\\\\\8.12 = r$

3 0

1 year ago

Lucy's pet snake eats 2 mice a week how many mice will she eat in 6 weeks

alexgriva [62]

What we know: Lucy's snake eat's 2 mice a week.

To find the answer, you'll have to multiply 2 by 6.

So, since Lucy's snake eats 2 mice a week for 6 weeks.

To find the amount of mice her snake has eaten in the past 6 weeks you'll have to multiply 2 and 6.

2x6=?

------------------------------------------------------------------

The first week the snake ate 2 mice.

The second week the snake ate 2 mice.

The third week the snake ate 2 mice.

The fourth week the snake ate 2 mice.

The fifth week the snake ate 2 mice.

The sixth week the snake ate 2 mice.

Your answer would be: 12

5 0

3 years ago

Round 7,208 to the nearest hundred

alisha [4.7K]

so confusing i really need help with this math

4 0

2 years ago

Read 2 more answers

HELP A line passes through two points with coordinates (6,-8) and (-3,7).

FromTheMoon [43]

Answer:

3y+5x=6

Step-by-step explanation:

Equation of the Line

The equation of a line passing through points (x1,y1) and (x2,y2) can be found as follows:

$\displaystyle y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)$

The line passes through the points (6,-8) and (-3,7), thus:

$\displaystyle y+8=\frac{7+8}{-3-6}(x-6)$

$\displaystyle y+8=\frac{15}{-9}(x-6)$

Simplifying:

$\displaystyle y+8=-\frac{5}{3}(x-6)$

Multiplying by 3:

$3(y+8)=-5(x-6)$

$3y+24=-5x+30$

Moving all the variables to the left side:

3y + 5x = 30 - 24

3y + 5x = 6

4 0

2 years ago

Sally collected 15 seashells, but 1/3 were broken. how many shells were broken?

vekshin1

I have the same question and I have no idea sorry

6 0

3 years ago

Read 2 more answers