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3 years ago

A bat and ball cost $1.10.

Mathematics

2 answers:

ArbitrLikvidat [17]3 years ago

5 0

Answer: The answer is 5 cents

Step-by-step explanation: The reason this answer is 5 cents is because the bat costs one dollar MORE than the ball. Which means that the bat costs $1.05 and the ball costs 5 cents.

pogonyaev3 years ago

4 0

Answer:

$0.10

Step-by-step explanation:

If the total is $1.10, and the bat costs $1 then you would subtract $1 from $1.10 (1.10-1) and get .10 meaning the ball costs 10 cents

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3 years ago

Why is 3/8 bigger than 3/12

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Step-by-step explanation:

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3 years ago

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3 years ago

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What is the zero in the quadratic function f(x)= 9x^2-54x-19?

Alex17521 [72]

Answer:

6.33... and 0.333...

Step-by-step explanation:

The quadratic formula is

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

It is important because while some quadratics are factorable and can be solved not all are. The formula will solve all quadratic equations and can also give both real and imaginary solutions. Using the formula will require less work than finding the factors if factorable. We will substitute a=9, b=-54 and c=-19.

$x=\frac{-b+/-\sqrt{b^2-4ac} }{2a}\\x=\frac{-(-54)+/-\sqrt{(-54)^2-4(9)(-19)} }{2(9)}\\x=\frac{54+/-\sqrt{2916+684} }{18}$

We will now solve for the plus and the minus.

The plus,,,

$x=\frac{54+\sqrt{3600}}{18}\\x=\frac{54+60}{18}\\x=\frac{114}{18}\\x=6.3$

and the minus...

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4 years ago

What is the value of x in the regular polygon below?<br> A. 40<br> B. 120<br> C. 60<br> D. 150

Liono4ka [1.6K]

Answer:

Step-by-step explanation:

The sum of the interior angles of a polygon is

sum = 180° (n - 2) ← n is the number of sides

Here n = 6, thus

sum = 180° × 4 = 720°

Thus each interior angle = 720° ÷ 6 = 120° and therefore

3x = 120 ( divide both sides by 3 )

x = 40 → A

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4 years ago