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Diano4ka-milaya [45]
3 years ago
11

Suppose Q and R are independent events. Find P(Q and R) if P(Q) =

" id="TexFormula1" title=" \frac{7}{15} " alt=" \frac{7}{15} " align="absmiddle" class="latex-formula"> and P(R) = \frac{4}{7}?
A. 4/15
B. 11/15
C. 109/105
D. 15/29
Mathematics
1 answer:
Furkat [3]3 years ago
5 0
To be exact I think the right answer is d
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The pressure, P, of a gas varies inversely with its volume, V. Pressure is measured in units of Pa. Suppose that a particular am
docker41 [41]
The answer is 26 Pa.

<span>The ideal gas law can be presented as:
PV = nRT
where
P - pressure of the gas,
V - volume of the gas,
n - amount of substance of gas,
R - gas constant,
T - temperature of the gas.</span>


But, we do not need to know all of the equation members since the right side of the equation is not affected and will remain the same. It is enough the left side of the equation:

P₁V₁ = P₂V₂

It is given:

P₁ = 104 Pa

V₁ = 108 L

V₂.= 432 L


The unknown is P₂ = ?


P₁V₁ = P₂V₂.

104 Pa × 108 L = P₂ × 432 L

11,232 Pa L = P₂ × 432 L

P₂ = 11,232 Pa ÷ 432 

<span>P₂ = 26 Pa</span>

<span>
</span>

<span>Therefore, the new pressure will be 26 Pa.</span>

8 0
3 years ago
What would the graph look like if the domain is [1,3] and the range is [2,7]
jarptica [38.1K]

Answer:

I hope it's helpful. check it out

8 0
1 year ago
What is the slope of the line that passes through the points (1, -7), and (3, 1)? -4 - 4
lozanna [386]
I’m not sure what the negative fours are at the end of your problem are for, but the slope of the line passing through those points is 4.

The line itself is y = 4x - 11
4 0
3 years ago
Read 2 more answers
HELP!!! A cell phone is 132 mm long and 57 mm wide. What is ratio of the width and length in simplest form.
GalinKa [24]

The ratio of width to length in simplest form is 19 : 44

<em><u>Solution:</u></em>

Given that, A cell phone is 132 mm long and 57 mm wide

Length of cell phone = 132 mm

Width of cell phone = 57 mm

We have to find the ratio of width and length in simplest form

\frac{Width}{Length} = \frac{57}{132}\\\\\text{Reduce to lowest terms }\\\\\frac{width}{length} = \frac{57 \div 3}{132 \div 3}\\\\\frac{Width}{Length} = \frac{19}{44}

In ratio form, we know that,

\frac{a}{b} = a : b

Writing in ratio form, we get

Width : length = 19 : 44

Thus the ratio of width to length in simplest form is 19 : 44

6 0
3 years ago
To determine the effect their salespersons have on purchases, a department store polled 700 shoppers regarding whether or not th
Soloha48 [4]

Answer:

a) p = 352/700 = 0.5029

b) p = 348/700 = 0.4971

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

There are 700 shoppers.

151 + 201 = 352 were happy with the service received.

133 + 215 = 348 were not happy with the service received.

(a) A shopper was happy with the service received.

352 happy out of 700

p = 352/700 = 0.5029

(b) A shopper was unhappy with the service received.

348 unhappy out of 700

p = 348/700 = 0.4971

5 0
4 years ago
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