3 years ago

16x^2-25 and 4x^2-x-5?

Mathematics

1 answer:

Thepotemich [5.8K]3 years ago

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X^4-x^2-42=0 need to solve equation and find solution set

Ipatiy [6.2K]

That's a quadratic equation in $x^2$ , which means we get an extra square root and $\pm$ at the end.

$x^4 - x^2 - 42 = 0$

We factor,

$(x^2 - 7)(x^2+6) = 0$

$x^2 = 7 \quad \textrm{or} \quad x^2 = -6$

$x = \pm \sqrt{7} \quad \textrm{or} \quad x = \pm i \sqrt{6}$

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2 years ago

One way to show that two triangles are similar is to show that

avanturin [10]

Answer:

show that the three sets of corresponding sides are in proportion. If the three sets of corresponding sides of two triangles are in proportion, the triangles are similar.

Step-by-step explanation:

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2 years ago

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Monica [59]

Answer:24

Step-by-step explanation:

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3 years ago

Find the surface area of the prism. 5 in. - 3 in. 8 in.

steposvetlana [31]

Answer:

5.10,3.6,8.12 is the surface area of prism

Step-by-step explanation:

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2 years ago

A baker uses 2.327 kilograms of blueberries for muffins. There are four packages at the fruit market. Which amount is closest to

irinina [24]

Answer:

2.33 kg

Step-by-step explanation:

If the baker needs to use 2.327 kilograms of blueberries, we are going to subtract the amount of the packages to the amount he needs and we'll see which is the smallest number.

In the case of 2.3, 2.327 - 2.3 = .027

In the case of 2.42, 2.327 - 2.42 = -0.09

In the case of 2.33, 2.327 - 2.33 = -0.003

In the case of 2.4, 2.327 - 2.4 = -0.07

Therefore, the closest amount to 2.327 is the 2.33 package.

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2 years ago