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3 years ago

Help now !!! What is C. and F.

Mathematics

2 answers:

alina1380 [7]3 years ago

8 0

I know the answer is 23 to f

vfiekz [6]3 years ago

3 0

I know the answer is 23 to f. but idk how to explain my thinking cause i just went "how many times does 15 go into 345" and as for c. idk the answer

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Evaluate 9.5s +8.7t when s= 3 and t = 4

Arturiano [62]

The answer is 63.3

9.5 * 3 + 8.7 * 4 = 63.3

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2 years ago

Please help!

natulia [17]

Answer: Option D.

Step-by-step explanation:

To solve this exercise you must keep on mind the Angle at the Center Theorem.

According to the Angle at the Center Theorem, an inscribed angle is half of the central angle.

Therefore, given in the inscribed angle m∠BAC=35°, you can calculate the central angle m∠EFD as following:

$BAC=\frac{EFD}{2}$

- Solve for EFD.

$EFD=2*BAC$

- When you substitute values. you obtain:

$EFD=2(35\°)\\EFD=70\°$

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2 years ago

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sertanlavr [38]

Answer:

1- A

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4- D

Step-by-step explanation:

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2 years ago

Help plz this is a mastery test

oee [108]

Answer:

8 1/30

Step-by-step explanation:

Calculate by converting into improper fractions.

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2 years ago

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Find the derivative of ln(cosx²).

RoseWind [281]

Answer:

$\displaystyle \frac{dy}{dx} = -2x \tan (x^2)$

General Formulas and Concepts:

Calculus

Differentiation

Derivatives
Derivative Notation

Basic Power Rule:

f(x) = cxⁿ
f’(x) = c·nxⁿ⁻¹

Derivative Rule [Chain Rule]: $\displaystyle \frac{d}{dx}[f(g(x))] =f'(g(x)) \cdot g'(x)$

Step-by-step explanation:

Step 1: Define

Identify

$\displaystyle y = \ln (\cos x^2)$

Step 2: Differentiate

Logarithmic Differentiation [Derivative Rule - Chain Rule]: $\displaystyle y' = \frac{(\cos x^2)'}{\cos x^2}$
Trigonometric Differentiation [Derivative Rule - Chain Rule]: $\displaystyle y' = \frac{-\sin x^2 (x^2)'}{\cos x^2}$
Basic Power Rule: $\displaystyle y' = \frac{-2x \sin x^2}{\cos x^2}$
Rewrite [Trigonometric Identities]: $\displaystyle y' = -2x \tan (x^2)$

Topic: AP Calculus AB/BC (Calculus I/I + II)

Unit: Differentiation

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2 years ago