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3 years ago

I need help on this please and thank you and I’ll like to see an explanation so I can see how to do this thanks

Mathematics

1 answer:

ollegr [7]3 years ago

3 0

the second one

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

A water tank holds 12 gallons. How many full buckets of water will it take to fill the tank, if each bucket has capacity 3 quart

liraira [26]

Answer:

4 full buckets

Step-by-step explanation:

there are 4 quarts in a gallon, but it only holds 3. 12 divided by 3 is 4.

Hope it helped!

4 0

2 years ago

Read 2 more answers

Colton wrote a ratio comparing the number of sports video games that he owns to the number of driving video games that he owns a

nordsb [41]

D. If you were to say the given ratio aloud, it would go something like this: 4 to 3, 4,3 or 4 sports video games to 3 driving ones. So, the answer is 4 to 3, or answer D.

6 0

3 years ago

Got another easy question to do. Will give, Branliest.<br><br>Thanks, <br>:)

elena55 [62]

Answer: 360g

120 --> 10

x ---> 30

120*30=10*x

3600= 10*x

x= 3600/10

x= 360

Matthew needs 360g of flour

5 0

3 years ago

Read 2 more answers

If you put a $160 coat on layaway and make a 25% deposit, what is the balance owed?

Anna71 [15]

25% of $160

= (25/100) * 160

= 0.25 * 160

= 40

$40 paid.

Balance owed = $160 - $40 = $120

Balance owed = $120

7 0

3 years ago