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3 years ago

Find one value of x that is a solution to the equation: (2x + 3)2 – 4(2x + 3) - 12 = 0

Mathematics

1 answer:

Flauer [41]3 years ago

3 0

Answer:

x = 3/2

Step-by-step explanation:

(2x + 3)2 – 4(2x + 3) - 12 = 0

Simplify the equation then isolate for x.

Distribute over brackets:

(4x + 6) – (8x + 12) - 12 = 0

Combine like terms:

4x + 6 – 8x + 12 - 12 = 0

6 - 4x = 0

Isolate x:

6 = 4x

6/4 = x

Reduce the fraction:

6/4 = x <= divide top and bottom by "scale factor" of 2

3/2 = x

x = 3/2 <= having x on the left side is standard

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Step-by-step explanation:

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3 years ago

In a genetics experiment on peas, one sample of offspring contained 376green peas and 150yellow peas. Based on those results,

ivanzaharov [21]

Answer:

1a. p0= 0.714

1b The result is not reasonably close to the value of 3/4 that was expected

Step-by-step explanation:

1a.Since One sample of offspring contained 376 green peas and 150 yellow peas therefore the probability of getting an offspring pea that is green will be:

Green pea/(Green pea+ Yellow pea)

p0= 376 /(376+150)

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Probability of getting Green pea = 0.714

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3 years ago

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tatuchka [14]

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8 0

3 years ago

. If there are 60 green M&M’s in a bag, how many orange M&M’s will be in the bag?

AveGali [126]

Answer:

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Step-by-step explanation:

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2 years ago

Pls help me on this math watch!!! this is non calculator

Andru [333]

The height of the cone is 4 cm (approx).

Step-by-step explanation:

Given,

The radius (r) of the cone = 4.96 cm

Volume (V) = 102 cm³

To find the height (h) of the cone.

Formula

The volume of a cone V = $\frac{1}{3}$ πr²h

Now,

According to the problem,

$\frac{1}{3}$ πr²h = 102

or, $\frac{1}{3}$ × $\frac{22}{7}$ ×(4.96)²h= 102

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or, h = 3.95 = 4 (approx)

so,

Height = 4 cm (approx)

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3 years ago