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3 years ago

please help i am so confused! need answer fast and thank you soo much! get full points and help your girl out!

Mathematics

1 answer:

Mnenie [13.5K]3 years ago

6 0

Answer:

238 ft³

Step-by-step explanation:

Volume = Length × Width × Height

V = 8.5 × 4 × 7

V = 238 ft³

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The number of soft pretzels processed by a machine in a bakery varies directly to the number of minutes that the machine runs. T

kolezko [41]

Answer:

the answer is c)

Step-by-step explanation:

the reason is 5*6 would be 30 and if you were to add 3 more zero's, it would be 3000 and 1/10 of 600 is 60 so 60*2 is 120 which is where you het the 120 so you add it up and it's 3,120

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2 years ago

Use the fundamental identities and appropriate algebraic operations to simplify the following expression. (18 +tan x) (18-tan x)

andrezito [222]

Answer:

a) $\left(18+\tan \left(x\right)\right)\left(18-\tan \left(x\right)\right)+\sec ^2\left(x\right)=325$

b) The lowest point of $y=\cos \left(x\right)$ , $0\leq x\leq 2\pi$ is when x = $\pi$

Step-by-step explanation:

a) To simplify the expression $\left(18+\tan \left(x\right)\right)\left(18-\tan \left(x\right)\right)+\sec ^2\left(x\right)$ you must:

Apply Difference of Two Squares Formula: $\left(a+b\right)\left(a-b\right)=a^2-b^2$

$a=18,\:b=\tan \left(x\right)$

$\left(18+\tan \left(x\right)\right)\left(18-\tan \left(x\right)\right)=18^2-\tan ^2\left(x\right)=324-\tan ^2\left(x\right)$

$324-\tan ^2\left(x\right)+\sec ^2\left(x\right)$

Apply the Pythagorean Identity $1+\tan ^2\left(x\right)=\sec ^2\left(x\right)$

From the Pythagorean Identity, we know that $1=-\tan ^2\left(x\right)+\sec ^2\left(x\right)$

Therefore,

$324[-\tan ^2\left(x\right)+\sec ^2\left(x\right))]\\324[+1]\\325$

b) According with the below graph, the lowest point of $y=\cos \left(x\right)$ , $0\leq x\leq 2\pi$ is when x = $\pi$

3 0

3 years ago

10 points and brainliest if answered :D!

AVprozaik [17]

Answer:

63,360 feet

Step-by-step explanation:

1 mile = 5280 ft

* 12 *12 (multiply 12 to both sides)

------------------

12 miles = 63,360 ft

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2 years ago

A building is 50 feet tall. Imagine you are standing 30 feet away from it. What is the angle when you are looking up at your fri

Rina8888 [55]

Answer:

53.1

Step-by-step explanation:

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3 years ago

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