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3 years ago

Find (tan Q) the answers are in the pictures, the last answer is D.) cannot be determined

Mathematics

1 answer:

Readme [11.4K]3 years ago

3 0

Q=45°
tan 45°=1
so the answer is 1

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3 years ago

What is the monomial if a square of a monomial is:1 9/16 a12b6

san4es73 [151]

Answer:

$1\dfrac{1}{4}a^6b^3$

Step-by-step explanation:

A square of a monomial is $1\dfrac{9}{16}a^{12}b^6$ that is $\dfrac{25}{16}a^{12}b^{6}$

Use properties of exponents:

$(a^m)^n=a^{mn}\\ \\\dfrac{a^m}{b^m}=\left(\dfrac{a}{b}\right)^m\\ \\a^mb^m=(ab)^m$

Note that

$\dfrac{25}{16}=\dfrac{5^2}{4^2}=\left(\dfrac{5}{4}\right)^2\\ \\a^{12}=a^{6\cdot 2}=(a^6)^2\\ \\b^6=b^{3\cdot 2}=(b^3)^2$

Then

$\dfrac{25}{16}a^{12}b^{6}=\left(\dfrac{5}{4}\right)^2\cdot (a^6)^2\cdot (b^{3})^2=\left(\dfrac{5}{4}a^6b^3\right)^2$

So, the monomial is

$\dfrac{5}{4}a^6b^3=1\dfrac{1}{4}a^6b^3$

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3 years ago

Shalika bought a purse for $120 the tax rate was 9%

Vika [28.1K]

The tax is $18.90

(9/100) x 120 = $18.90

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3 years ago

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A group of scientists is conducting an experiment on the effects of media on children. They randomly select 100 children and ran

Marysya12 [62]

The statements that are true about this study are:

This study uses random sampling.

This study uses a control group.

This study uses a repeated measures design.

Random sampling occurs when each sample has an equal probability of being chosen in a study.

This is seen in the random selection of 100 children. The Control group was used with the first group that had no screen time.

The repeated measures design was also used when multiple measurements were taken during different weeks.

Learn more about experiments here:

brainly.com/question/17216882

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2 years ago

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UkoKoshka [18]

Answer:

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Step-by-step explanation:

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3 years ago

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