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2 years ago

2x^2-3x+1=0, how do I solve this

Mathematics

1 answer:

cricket20 [7]2 years ago

7 0

2x^2-3x+1=0
(2x -1)(x-1) = 0
2x - 1 = 0; x = 1/2
x - 1 = 0;x = 1

answer
x = 1/2 and x = 1

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Mrs Jenkins is buying pizza for the soccer team after practice. She estimates that each player will eat three eighths if a pizza

____ [38]

Answer:

6 3/8 pizzas

Step-by-step explanation:

She estimates that each player will eat three eighths if a pizza and there are 17 players.

Therefore, we have to multiply 3/8 by 17:

3 / 8 * 17 = 6.375 pizzas = 6 3/8 pizzas

They will eat 6 3/8 pizzas.

3 0

3 years ago

Jack was 13 years older than Priscilla. together their ages totaled 163 years . What were their ages?

djverab [1.8K]

Answer:

Jack is 88, Priscilla is 75.

Step-by-step explanation:

Let J represent Jack's age and let P represent Priscilla's age.

Their age totaled 163, so:

$J+P=163$

And we know that Jack was 13 years older than Priscilla. In other words:

$J=13+P$

Solve for J and P. To do so, substitute the second equation into the first:

$13+P+P=163$

Combine like terms:

$2P+13=163$

Subtract 13 from both sides:

$2P=150$

Divide 2 from both sides:

$P=75$

So, Priscilla is 75 years old right now.

Jack is 13 years older meaning that Jack is 88 years right now.

And we're done!

5 0

2 years ago

1. Calculate the acceleration of riding her bicycle in a straight line that speeds up from 4 m/s to 12 m/s in 10 seconds. SOLUTI

valentina_108 [34]

<h3>✒️ACCELERATION</h3>

=================================

$\large\sf\underline{Problem:}$

Calculate the acceleration of riding her bicycle in a straight line that speeds up from 4 m/s to 12 m/s in 10 seconds.

=================================

$\large\sf\underline{Answer:}$

$\qquad \qquad \huge \rm = 0.8 \: m/s²$

=================================

$\large\sf\underline{Solution:}$

Here we have a given of,

$\tt{(12\:m/s) \:= \:V_f = (final\: velocity) }$
$\tt{(4\:m/s)\:=\:V_i = (initial \: velocity) }$
$\tt{(10\:sec) \:=\:T = (elapsed time) }$

$\bold{Formula\:||\: Acceleration = \frac{v\: - \:v_0}{t} = \frac{ΔV}{ΔT} }$

Because acceleration has a direction (riding her bicycle in a straight line), it is important to always subtract the final velocity represented as $\bold{V_f}$ from your initial velocity also represented as $\bold{V_i}$ .

Now 'Work it out' and solve for Acceleration of riding her bicycle using the given formula.

$\large\rm{A = \frac{V_f \:- \:V_i}{T} }$
$\large\rm{A = \frac{(12\:m/s\:-\:4\:m/s) }{10\:sec}}$
$\large\rm{A = \frac{ 8\:m/s}{10\:sec} }$
$\large\rm{A = 0.8\:m/s²}$

Hence, The total acceleration of the girl riding her bicycle is 0.8 meters per second squared (m/s²).

=================================

૮₍´˶• . • ⑅ ₎ა

3 0

1 year ago

Please I really do need ur help. I have to get my grades up4 5/9 is the same as the sum of 2 1/3 and 5/6 times a number.

Tems11 [23]

Answer:

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Step-by-step explanation:

fiv youuggutuvrjriffi iivtii

3 0

2 years ago

SOLVE THIS PROBLEM! EXTRA POINTS!!!!!!! 3025/5.5 = A/90.75

I am Lyosha [343]

Step-by-step.

30255.5=a90.75

Step 1: Cross-multiply.

30255.5=a90.75

(3025)*(90.75)=a*(5.5)

274518.75=5.5a

Step 2: Flip the equation.

5.5a=274518.75

Step 3: Divide both sides by 5.5.

5.5a5.5=274518.755.5

a=49912.5

8 0

2 years ago