3 years ago

There are 8 squares and 25% are red how many are blue

Mathematics

2 answers:

siniylev [52]3 years ago

7 0

6 are blue square

75% are blue squares

REY [17]3 years ago

5 0

25% of 8 is 2, 8-2=6
2 are red, 6 are blue

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2 years ago

Factor 16x^2 + 49. Check your work.

Shtirlitz [24]

Answer:

$16x^2+49=(x-\frac{7i}{4})(x+\frac{7i}{4})$

Step-by-step explanation:

Given : Expression $16x^2+49$

To find : Factor the expression ?

Solution :

The given expression is a quadratic function $y=ax^2+bx+c$ the solution is $x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$

On comparing with general form,

a=16, b=0, c=49

Substitute in the formula,

$x=\frac{-0\pm\sqrt{0^2-4(16)(49)}}{2(16)}$

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$x=\frac{\pm56i}{32}$

$x=\frac{56i}{32},\frac{-56i}{32}$

$x=\frac{7i}{4},\frac{-7i}{4}$

Factors are $(x-\frac{7i}{4}),(x+\frac{7i}{4})$

Therefore, $16x^2+49=(x-\frac{7i}{4})(x+\frac{7i}{4})$

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3 years ago

a race car drivers time in seconds to complete 12 laps is plotted on a graph, what is the dependent variable?

Ipatiy [6.2K]

The time it took to complete 12 laps.
The independent, however, would be the car's speed or something like that.

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3 years ago

How do I do 3? Thanks a bunch

Nataly_w [17]

A does

Hope that helps!

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3 years ago

Find x by using the quadratic formula x2 − 0.011x − 0.063 = 0

Effectus [21]

X=0.037

I would recommend using something like Math Papa for future problems like this.

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3 years ago

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