2 years ago

Simplify 5(h+8)^2+16=1486

1 answer:

7 0

h=7√6−8,−7√6−8

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Miguel saved $355 in 5 weeks. He saved equal amounts of money each week. How much money would he save in 15.5 weeks ?

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Answer:

Step-by-step explanation:

$355:5

$355 divided by 5=$71

5 divided by 5=1

$71 per week

$71x15.5=$1,100.50

$1,100.50 in 15.5 weeks

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2 years ago

Marcus has x songs downloaded on his phone. He downloads 20 more songs to his phone.

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3 years ago

I need to know what the value is for x

hoa [83]

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2 years ago

Express each ratio to the lowest term 3:18, 8:10, 6:15, 9:12, 4:12?

Anarel [89]

Answer:

2:5, 3:4, 1:3

simplify the numbers

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2 years ago

The hydrogen ion concentration (h+) in a certain cleaning compound is (h+)=3.2x10^-11 use the formula ph=-log(h+) to find the pH

Furkat [3]

Answer:

The $pH$ of the clean compound is approximately 10.495.

Step-by-step explanation:

If the cleaning ion concentration of the cleaning compound is $[H^{+}] = 3.2\times 10^{-11}$ , then the $pH$ , no unit, of the compound is:

$pH = -\log_{10} [H^{+}]$ (1)

$pH = -\log_{10} (3.2\times 10^{-11})$

$pH = -\log_{10} 3.2 - \log_{10} (10^{-11})$

$pH = -\log_{10} \frac{32}{10} +11$

$pH = -\log_{10} 32 + \log_{10} 10 + 11$

$pH = -\log_{10} 32 +12$

$pH \approx 10.495$

The $pH$ of the clean compound is approximately 10.495.

6 0

2 years ago