3 years ago

What is a factor of 21x² + 13x - 20

Mathematics

1 answer:

Tems11 [23]3 years ago

4 0

Answer:

(7x-5)(3x+4)

Step-by-step explanation:

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Answer:

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3 years ago

What is the answer to his question

horsena [70]

Answer:

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Step-by-step explanation:

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3 years ago

The inverse variation equation shows the relationship between wavelength in meters, x, and frequency, y.

wolverine [178]

Answer:

$\lambda=10^{-10}\ m$

Step-by-step explanation:

Given that,

The frequency of x-rays, $f=3\times 10^{18}\ Hz$

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3 years ago

Find the root of 11+2square30

EleoNora [17]

$\\ \sf\longmapsto \sqrt{11+2^230}$

$\\ \sf\longmapsto \sqrt{11+4(30)}$

$\\ \sf\longmapsto \sqrt{11+120}$

$\\ \sf\longmapsto \sqrt{131}$

$\\ \sf\longmapsto 11.3$

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2 years ago

Element X decays radioactively with a half life of 15 minutes. If there are 340 grams of Element X, how long, to the nearest ten

NikAS [45]

Answer: 57 min

i used a calculator.

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2 years ago