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2 years ago

Help!? Please just this question

Mathematics

1 answer:

BARSIC [14]2 years ago

8 0

Answer:

I'd say 1/16

Step-by-step explanation:

but honestly it'd be more like 1/10,000. There's so many options. SORRY if you get this wrong!

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Max ran a total of 5 miles around a track. Each lap was 1/8 of a mile. Zachary ran 36 laps around the track. Who ran more laps?

igomit [66]

Max ran more than zachary because, max ran 5 miles. 5 miles x 8 laps per mile is 40 miles.

6 0

4 years ago

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What is the name of the most dangerous fault line in the U.S.?<br> Your

Sphinxa [80]

That one in the san Andreas movie?

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3 years ago

Which of the following represents a correct step in completing the square for the equation 4x^2+8x=-16?

SCORPION-xisa [38]

I think the answer would be A.

7 0

3 years ago

(1/1+sintheta)=sec^2theta-secthetatantheta pls help me verify this

Xelga [282]

Answer:

See Below.

Step-by-step explanation:

We want to verify the equation:

$\displaystyle \frac{1}{1+\sin\theta} = \sec^2\theta - \sec\theta \tan\theta$

To start, we can multiply the fraction by (1 - sin(θ)). This yields:

$\displaystyle \frac{1}{1+\sin\theta}\left(\frac{1-\sin\theta}{1-\sin\theta}\right) = \sec^2\theta - \sec\theta \tan\theta$

Simplify. The denominator uses the difference of two squares pattern:

$\displaystyle \frac{1-\sin\theta}{\underbrace{1-\sin^2\theta}_{(a+b)(a-b)=a^2-b^2}} = \sec^2\theta - \sec\theta \tan\theta$

Recall that sin²(θ) + cos²(θ) = 1. Hence, cos²(θ) = 1 - sin²(θ). Substitute:

$\displaystyle \displaystyle \frac{1-\sin\theta}{\cos^2\theta} = \sec^2\theta - \sec\theta \tan\theta$

Split into two separate fractions:

$\displaystyle \frac{1}{\cos^2\theta} -\frac{\sin\theta}{\cos^2\theta} = \sec^2\theta - \sec\theta\tan\theta$

Rewrite the two fractions:

$\displaystyle \left(\frac{1}{\cos\theta}\right)^2-\frac{\sin\theta}{\cos\theta}\cdot \frac{1}{\cos\theta}=\sec^2\theta - \sec\theta \tan\theta$

By definition, 1 / cos(θ) = sec(θ) and sin(θ)/cos(θ) = tan(θ). Hence:

$\displaystyle \sec^2\theta - \sec\theta\tan\theta \stackrel{\checkmark}{=} \sec^2\theta - \sec\theta\tan\theta$

Hence verified.

8 0

3 years ago

Type the correct answer in each box. Use numerals instead of words.

deff fn [24]

Step-by-step explanation:

x+y=84

x²=y+6

y+6+y=84

2y+6=84

2y=84-6

2y=78

y=39

x=84-39=45

5 0

3 years ago