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PSYCHO15rus [73]

3 years ago

7

Help with this please

1 answer:

AfilCa [17]3 years ago

3 0

Answer:

10

Step-by-step explanation:

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Solve the equation to find where the treste ground levelEnter your answers from least to greatest and round to the nearest The m

DaniilM [7]

Answer:

The trestle meets ground level at 0.875 units and 9.125 units

Step-by-step explanation:

Poorly formatted question.

The given equation is:

$y = -x^2 + 10x - 8$

Required

The point where the trestle gets to the ground level

To do this, we set $y = 0$

So, we have:

$-x^2 + 10x - 8 = 0$

Multiply through by -1

$x^2 -10x + 8 = 0$

Solve using quadratic formula:

$x= \frac{-b \± \sqrt{b^2 - 4ac}}{2a}$

Where:

$a = 1; b =-10; c = 8$

So, we have:

$x= \frac{-(-10) \± \sqrt{(-10)^2 - 4*1*8}}{2*1}$

$x= \frac{-(-10) \± \sqrt{68}}{2*1}$

$x= \frac{-(-10) \± 8.25}{2}$

$x= \frac{10 \± 8.25}{2}$

Solve the fraction

$x= 5 \± 4.125$

Split

$x= 5 + 4.125\ or\ x= 5 - 4.125$

$x= 9.125\ or\ x= 0.875$

7 0

3 years ago

1.50x+19.00=2.75x+15.00

Fiesta28 [93]

X=3.2 I believe that's your answer

6 0

3 years ago

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Please i need help asap!

shusha [124]

Answer:

um

Step-by-step explanation:

3 0

2 years ago

HELP!!!!!!!<br><br><br> What is 2 8/10 + (-3.5) in decimal form

GarryVolchara [31]

Answer: -0.7

Step-by-step explanation:

7 0

3 years ago

(1, 4) is a solution to the system that includes y=3x + 1 and y = -x + 5.

SIZIF [17.4K]

Answer:

yes

Step-by-step explanation:

y=3x + 1

y = -x+5

Check if (1,4) solves the first equation

4 = 3(1)+1

4 = 3+1

4=4

This is true

Check the second equation

4 = -1+5

4=4

This is true

(1,4) is a solution to the system of equations

7 0

2 years ago

Read 2 more answers