2 years ago

Anwser these questions

Mathematics

1 answer:

Sveta_85 [38]2 years ago

6 0

Use photo math , it helps lol

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Lindsey is considering purchasing an item that costs $860 and has a discount of 15 % . What is the amount of discount on

Blizzard [7]

Answer:

$129

Step-by-step explanation:

We need to find 15% of $860.

15% of $860 =

= 15% * $860

= 0.15 * $860

= $129

4 0

3 years ago

Does this graph show a function? Explain how you know.

NISA [10]

Answer:

its A.

Step-by-step explanation:

nun of the lines touch.

3 0

1 year ago

Find the value of y. Round to the nearest tenths place.

Usimov [2.4K]

Are there any options on the test or homework

6 0

2 years ago

Read 2 more answers

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

PLS HELP!!! WILL GIVE A LOT OF POINTS!!! <br><br><br><br> dont forget the show your work pls

kolbaska11 [484]

Answer: it might be 8

Step-by-step explanation: Write a distance formula: x^2 - x^1

substituted -3.8, 4.2 into x^2 - x^1 and u will get 4.2 + 3.8 and u will calculate and it gets 8

I hope its right

7 0

1 year ago