3 years ago

Please help, I need answers ASAP.......

Mathematics

1 answer:

Alchen [17]3 years ago

4 0

Answer:

hope it is helpful to you

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The bill from your plumber was 134. The cost of labor was 32 per hour. The cost of materials was 46. How many hours did the plum

ladessa [460]

2.75 hours.

The equation would be 32x + 46 = 134. So we subtract 46 from 134 and get 88. Now we have to divide that by 32 to get the total of 2.75 hours

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2 years ago

2. Dilute hydrochloric acid reacts with zinc to form zinc chloride and hydrogen.

DIA [1.3K]

Step-by-step explanation:

Zn + 2HCl => ZnCl2 + H2

Moles of Zn = 13g / (65.38g/mol) = 0.198mol

Volume of HCl = 0.396mol / (0.25mol/dm³) = 1.58dm³.

Volume of H2 = 0.198mol * (22.4dm³/mol) = 4.43dm³.

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3 years ago

HELP What is the approximate volume of a cone with a height of 12 in. And a radius of 9in.?

Lunna [17]

$SURFACE \: \: AREA \: \: AND \: \: VOLUMES \\ \\ \\\\Volume \: \: of \: \: cone \: \: = \: \: \frac{1}{3} \pi {r}^{2} h \\ \\ \\ We \: are \: given \: that \: \: - \: \: \: \\ \: \: \\ \: Radius \: = \: 9 \: \: in. \\ \\ \: Height \: = \: 12 \: \: in. \\ \\ \: \: \: \pi \: = \: 3.14 \\ \\ Volume \: \:of \: \: Cone \: \: = \: \: \frac{1}{3} \times 3.14 \times 9 \times 9 \times 12 \\ \\ \\ Volume \: \: of \: \: Cone \: \: = \: \: 1017.36 \: {in.}^{3}$

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3 years ago

Which inequality does this graph represent?

Natali [406]

I believe it is d also hope that help

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3 years ago

GUYSSSSS important question<br><br> whats 9 plus 10 (whoever gets this gets brainliest)

rusak2 [61]

Answer: 21 :D

Step-by-step explanation:

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