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Tju [1.3M]
3 years ago
13

The Swiger family recycles about 15 pounds of waste a week. This is 2/5 of the total waste a week. How many pounds of waste does

the family produce each week? (Step by step explanation)
Mathematics
1 answer:
Natalija [7]3 years ago
8 0

Answer: 37.5 lb/wk

Step-by-step explanation:

Let X be the total amount of waste.  We are told that (2/5) of X is 15 lb/wk.

(2/5)X = 15 lb/wk

X = (5/2)*(15lb/wk)

X = (75/2) il/wk

X = 37.5 lb/wk

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Consider the following binomial experiment: A newspaper publisher claims that 52% of the people in a certain community read his
AURORKA [14]

Answer:

SD = 8.4932

Step-by-step explanation:

Given

Sample\ Size (n) = 289

proportion, p= 52\%

Required

Determine the standard deviation (SD)

The standard deviation of a binomial distribution is calculated as thus:

SD = \sqrt{np(1-p)}

Substitute values for n and p

SD = \sqrt{289 * 52\% * (1-52\%)}

Convert to decimals

SD = \sqrt{289 * 0.52 * (1-0.52)}

SD = \sqrt{289 * 0.52 * 0.48}

SD = \sqrt{72.1344}

SD = 8.49319727782

SD = 8.4932 --- <em>approximated</em>

<em>Hence, the calculated standard deviation is approximately 8.4932</em>

4 0
3 years ago
both circle Q and circle R have a central angle measuring 75. the ratio of the circle Q’s radius to circle R’s radius is 3/4. Wh
MissTica
Are there any answer choices? I'm pretty of an answer but I wanna se if its on the answer choices u have... if not ill just tell u what I think.

4 0
3 years ago
Read 2 more answers
Need help somebody help me plz
Wewaii [24]
Hello,
The formula for finding the circumference of a circle is 2 \pi r where r is the radius. SO we can plug 4 in for r in this formula because 4 is the radius:2 \pi 4=8 \pi. We are told to use 3.14 for \pi so we get 8(3.14)=25.12. Therefore, the circumference is 25.12 meters.
5 0
3 years ago
Berechne jeweils die Höhe der Pyramiden!<br>a) V = 140 cm3<br>G = 28 cm2<br>h = ?​
kozerog [31]

Answer:

untere Tabelle gibt an, wie Oberfläche und Volumen der Pyramide berechnet werden. Grundsätzlich gilt:

Oberfläche = Grundfläche + Mantelfläche

Volumen = Grundfläche · Pyramidenhöhe : 3

Generell ist darauf zu achten, dass mit unterschiedlichen Höhenangaben gerechnet wird. Für die Berechnung der Oberfläche wird die Höhe der schrägliegenden Seitendreiecke benötigt (Grafik unten: ha; hb). Für die Berechnung des Volumens wird die Höhe der Pyramide benutzt (Grafik unten: h).

JSXGraph v0.95 Copyright (C) see http://jsxgraph.org

ha = 5.83 cm

h = 5.00 cm

a = 6.00 cm

b = 6.01 cm

hb = 5.83 cm

V = 60.10 cm³

Ap = 106.11 cm²

AM = 70.05 cm²

AG = 36.06 cm²

 –  o  +  ←  ↓  ↑  → 

rechteckige Grundflächequadratische GrundflächeOberfläche = Grundfläche + Mantelfläche

OP = AG + AMOP = a · b + a · ha + b · hbOP = a² + a · ha · 2 Volumen = Grundfläche · h : 3

VP = AG · h : 3

VP = a · b · h : 3VP = a² · h : 3

Step-by-step explanation:

#semogamembantu

5 0
3 years ago
Using a compass, construct an accurate copy of triangle DEF. Check that EF = 4.6 cm. ​
MaRussiya [10]

Step-by-step explanation:

construct 90° then measure 4.6 cm and draw a line from F to D

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2 years ago
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