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3 years ago

How do you do 1/8 x 15

Mathematics

1 answer:

umka21 [38]3 years ago

6 0

Answer:

1.875

Step-by-step explanation:

Just multiply it!

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Cam someone help me out please

Sergio039 [100]

Answer:428.67

Step-by-step explanation:

πr (r+square root(h2+r2) plug in the numbers

5 0

3 years ago

One more than three times a number is the same as four less than double a number

brilliants [131]

Answer:

3x + 1 = 2x - 4. x = -5

Step-by-step explanation:

3 0

4 years ago

Find the exact values of sin2 θ for cos θ = 3/18 on the interval 0° ≤ θ ≤ 90°

mote1985 [20]

Answer:

$sin(2\theta)=\frac{\sqrt{35} }{18}$

Step-by-step explanation:

Recall the formula for the sine of the double angle:

$sin(2\theta)=2*sin(\theta)*cos(\theta)$

we know that $cos(\theta)=\frac{3}{18}$ , and that $\theta$ is in the interval between 0 and 90 degrees, where both the functions sine and cosine are non-negative numbers. Based on such, we can find using the Pythagorean trigonometric property that relates sine and cosine of the same angle, what $sin(\theta)$ is:

$cos^2(\theta)+sin^2(\theta)=1\\sin^2(\theta)=1-cos^2(\theta)\\sin(\theta)=\sqrt{1-cos^2(\theta)} \\sin(\theta)=\sqrt{1-(\frac{3}{18} )^2}\\sin(\theta)=\sqrt{1-\frac{9}{324} }\\sin(\theta)=\sqrt{\frac{324-9}{324} }\\sin(\theta)=\sqrt{\frac{315}{324} }\\\\sin(\theta)=\frac{3}{18}\sqrt{35 }$

With this information, we can now complete the value of the sine of the double angle requested:

$sin(2\theta)=2*sin(\theta)*cos(\theta)\\sin(2\theta)=2*\frac{3}{18} \,\sqrt{35} \,\frac{3}{18}\\sin(2\theta)=\frac{2*3*3}{18*18}\,\sqrt{35} \\sin(2\theta)=\frac{\sqrt{35} }{18}$

6 0

3 years ago

after taking math online . what would you say are some pross (good) and cons (bad) about taking classes . online? what would mak

Elden [556K]

Answer:

Cons: Could be harder, Difficult to solve, hard to see problems online, Things to help: Post assignments in portions Pros: hand wont hurt if writing, Wont loose paper if it’s on paper

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

The measure of an angle is 131°. What is the measure of its supplementary angle?

sp2606 [1]

Answer:

the supplementary angle to 313 would be 49.

Step-by-step explanation:

the supplement of an angle is when tow angles add up to equal 180 degrees. therefore, if you subtract 131 from 180, you would get the answer of 49 degrees.

5 0

3 years ago

Read 2 more answers