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1 year ago

PLSS HELP ME WITH THISS! 35 POINTS!,

Mathematics

1 answer:

Anni [7]1 year ago

3 0

Answer:

the account balance at the end of the month is - $36.73

Step-by-step explanation:

balance at the start of the month: $19.96

throughout the month, withdraws (took out money):

$19.96 - $28.51 - $41.34 = - $49.89

money than was deposited (put money into account):

- $49.89 + $90.95 = $41.06

than a withdraw happened (took out money):

$41.06 - $88.95 = - $47.89

than a desposite happened (put in money):

- $47.89 + $11.16 = - $36.73

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Write the numbers 3,2,and 8 in an addition sentence.Show two more ways to find the sum.

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2 years ago

A cylindrical barrel has a diameter of 19.875 inches.Estimate the circumference of the barrel in feet?

viktelen [127]

The best estimate for the circumference of a 19.875 diameter barrel would be 5ft.

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2 years ago

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madam [21]

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Step-by-step explanation:

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2 years ago

Help please!

Mamont248 [21]

Answer: see proof below

<u>Step-by-step explanation:</u>

Use the Sum & Difference Identity: cos (A + B) = cos A · cos B - sin A · sin B

Recall the following from Unit Circle: cos (π/2) = 0, sin (π/2) = 1

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Use the Quotient Identity: $\tan A=\dfrac{\sin A}{\cos A}$

<u>Proof LHS → RHS:</u>

$\text{LHS:}\qquad \qquad \dfrac{\cos \bigg(\dfrac{\pi}{2}+x\bigg)}{\cos \bigg(\pi +x\bigg)}$

$\text{Sum Difference:}\qquad \dfrac{\cos \dfrac{\pi}{2}\cdot \cos x-\sin \dfrac{\pi}{2}\cdot \sin x}{\cos \pi \cdot \cos x-\sin \pi \cdot \sin x}$

$\text{Unit Circle:}\qquad \qquad \dfrac{0\cdot \cos x-1\cdot \sin x}{-1\cdot \cos x-0\cdot \sin x}$

$=\dfrac{-\sin x}{-\cos x}$

Quotient: tan x

LHS = RHS $\checkmark$

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2 years ago

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What is the true solution to ln 20+ln 5= 2 ln x

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2 years ago

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