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2 years ago

I have one more question before im done so please help and have a good day.

Mathematics

1 answer:

3241004551 [841]2 years ago

6 0

Answer:

See below

Step-by-step explanation:

<u>Solve the equation:</u>

6x² + 48x + 120 = 0
x² + 8x + 20 = 0
x² + 8x + 16 + 4 = 0
(x + 4)² + 4 = 0
(x + 4)² = - 4

The left side is positive and right side is negative so no solution

There is no intercession with the x-axis, the graph of the function is entirely above the x-axis.

It means the diver won't reach the bottom of the lake

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Please help I need help

navik [9.2K]

Answer:

L=10pi, or 31.42

Step-by-step explanation:

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3 years ago

It tom had 6 bottle of dish soap and he times 3 how many dish soap do he had all together

Stels [109]

Answer:

18 dish soaps

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

1. Which method would be the simplest way to solve 7x+5y=19 7x-2y=-16? A. (2,1) B. (1,2) C. (7,5) D. (-7,-2)

qaws [65]

I am pretty sur the awnser is c

8 0

3 years ago

find the standard form of equation of a line perpendicular to 4X plus 5Y equals 40 that includes the point -10, -3

snow_tiger [21]

The equation of line in standard form is 5x - 4y = -38

<em><u>Solution:</u></em>

Given that we have to find the equation of line perpendicular to 4x + 5y = 40 that includes the point (-10, -3)

<em><u>The equation of line in slope intercept form is given as:</u></em>

y = mx + c ------ eqn 1

Where "m" is the slope of line and "c" is the y - intercept

Given equation of line is:

4x + 5y = 40

Rearranging to slope intercept form, we get

5y = -4x + 40

$y = \frac{-4}{5}x + \frac{40}{5}\\\\y = \frac{-4}{5}x + 8$

On comparing the above equation with eqn 1,

$m = \frac{-4}{5}$

We know that product of slope of line and slope of line perpendicular to given line is equal to -1

Therefore,

$\frac{-4}{5} \times \text{ slope of line perpendicular to it } = -1\\\\\text{ slope of line perpendicular to it } = \frac{5}{4}$

Now find the equation of line with slope 5/4 and passing through (-10, -3)

Substitute $m = \frac{5}{4}$ and (x, y) = (-10, -3) in eqn 1

$-3 = \frac{5}{4}(-10) + c\\\\-3 = \frac{-25}{2} + c\\\\c = -3 + \frac{25}{2}\\\\c = \frac{-6 + 25}{2}\\\\c = \frac{19}{2}$

Substitute $c = \frac{19}{2}$ and $m = \frac{5}{4}$ in eqn 1

$y = \frac{5}{4}x + \frac{19}{2}$

The standard form of an equation is Ax + By = C

Therefore,

$\frac{5}{4}x - y = -\frac{19}{2}\\\\\frac{5x - 4y}{4} = \frac{-19}{2}\\\\5x - 4y = -38$

Thus the equation of line in standard form is found

4 0

3 years ago

A 5K race is about 3.1 miles. Kevin runs 3.5 miles on Monday, 4 miles on Wednesday and 1.8 miles on Friday. About how many 5K ra

docker41 [41]

Answer:

<u>Kevin completed 3 races</u>

Step-by-step explanation:

So to solve this first you would add up all of the miles Kevin ran.

$3.5+4+1.8=9.3$

Then you would take the total amount he ran and divide it by 3.1 to see how many races he would have completed

$9.3 / 3.1=3$

6 0

3 years ago