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3 years ago

Please help with this questions 45 POINTSSSS!

Mathematics

2 answers:

sergij07 [2.7K]3 years ago

7 0

Answer:

Part A is 14

Step-by-step explanation:

Novosadov [1.4K]3 years ago

5 0

Answer:

Part A answer is add 3 Part B answer is 5,15

Step-by-step explanation:

It may not be correct but all you have to do is read the diagram

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Setler79 [48]

Answer:

153.94 inches cubed

Step-by-step explanation:

plug in 7 as the radius

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2 years ago

Please help what is the answer?

MrRissso [65]

Answer:

The area of the shape is 18cm^2

Step-by-step explanation:

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2 years ago

How deep is the hole at ground level

tia_tia [17]

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2 years ago

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PLEASE HELP I WILL MARK BRAINLIST

lorasvet [3.4K]

Answer:

x³ - 8x² - 20x

Step-by-step explanation:

Zeroes: 10, 0, -2

Factors are: (x - 10), (x - 0), (x + 2)

Multiply all factors to get expression:

(x - 10)x(x + 2) = x(x - 10)(x + 2)

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2 years ago

Solve 5^3x+1 = 4^x-5 for x

tensa zangetsu [6.8K]

For the equation $5^{3x+1}=4^{x-5}$ take the $\log$ from both sides:

$\log 5^{3x+1}=\log 4^{x-5},\\ \\(3x+1)\log 5=(x-5)\log 4.$

Find x:

$3x\log 5+\log 5=x\log 4-5\log 4,\\ \\3x\log 5-x\log 4=-5\log 4-\log 5,\\ \\x(3\log 5-\log 4)=-5\log 4-\log 5,\\ \\x=\dfrac{-5\log 4-\log 5}{3\log 5-\log 4}=\dfrac{5\log 4+\log 5}{\log 4-3\log 5}.$

Answer: correct choice is D

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2 years ago

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