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faltersainse [42]

3 years ago

7

James wants to build a frame around a circular clock like the one shown. He is trying to determine how much material he needs to

wrap around the clock. Determine the circumference if the radius is 12 inches. Round your answer to the nearest tenths. Use ≈3.14.

1 answer:

stealth61 [152]3 years ago

4 0

Answer:

22

Step-by-step explanation:

Just did it

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What is the solution: (9x+2)(4x^2+35x-9)=0

Dmitrij [34]

$(9x+2)(4x^2+35x-9)=0\\\\9x+2=0\\9x=-2\\x=-\frac29\\or\\4x^2+35x-9=0\\\Delta=1225+144=1369\ \ \sqrt{\Delta}=37\\x_1=\frac{-35-37}{2 \cdot 4}=-9\\\\x_2=\frac{-35+37}{2\cdot 4}=\frac14\\\\x\in\{-9,-\frac29,\frac14\}$

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sergiy2304 [10]

Answer:

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3 years ago

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With both taps open, Blake can fill his kitchen sink in 6 minutes. When full, the sink drains in 10 minutes. How long will it ta

exis [7]

The time to fill the sink if Blake forgets to put in the stopper would be 15 mins.

Step-by-step explanation:

Given that,

The kitchen sink can fill in: 6 mins

The sink can drain in: 10 mins

We have to find the time to fill the sink if Blake forgets to put in the stopper. For that,

Lets say, the full tank = 1

Filling rate = $\frac{x}{6}$

Drainage rate = $\frac{x}{10}$

Hence, the time to fill the tank would be:

$\frac{x}{6} - \frac{x}{10} = 1$

$30.\frac{x}{6} - 30.\frac{x}{10} = 30.1$ (Multiply by LCM)

$5x - 3x = 30$

$2x = 30$

x = 15

Hence, the time to fill the sink if Blake forgets to put in the stopper would be 15 mins.

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3 years ago

What is Y=2000(1.25)^12

djverab [1.8K]

Answer:

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1 year ago

Find four consecutive multiples of 5 whose sum is 90

STatiana [176]

Answer:

15, 20, 25, 30

Step-by-step explanation:

If want to find the first multiple, we could actually use the equation: x + (x+5) + (x+5+5) + (x+5+5+5) = 90. After simplifying this term, we would get 4x+30 = 90 which then transforms into 4x=60 which simplifys to x = 15. Plug 15 into the original equation, and you would get the multiples 15 + 20 + 25 + 30 = 90.

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3 years ago

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