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shtirl [24]
3 years ago
15

4) →BRAINLIEST & 10+ POINTS! ← A wheel with diameter 44 cm completes four revolutions in 0.5 seconds. Find the linear speed

of the edge of the wheel in cm per second. ⇒Round to the nearest whole number. Linear speed = ____ cm/s
Mathematics
2 answers:
evablogger [386]3 years ago
4 0

Answer:

≈ 1106 cm/s

Step-by-step explanation:

linear speed = angular speed x radius of the rotation

v = ωr

v = linear speed (m/s)

ω = angular speed (radians/s)

r = radius of the rotation (m)

------------

Given:

  • d= 44 cm ⇒ r= 44/2 cm= 22 cm
  • ω= 4 rev/0.5 s= 8 rev/s= 8*2π/s= 16π/s  (converted rev to radians)

Linear speed is:

  • v= 22*16π cm/s ≈ 1106 cm/s (rounded to full number)

madam [21]3 years ago
3 0

Answer:

352 cm/s

Step-by-step explanation:

circ = 44pi

speed = distance * time

distance = circ * 4 = 176pi

speed = 176pi/0.5

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What is 8 times 6 times 10 equals
In-s [12.5K]

Answer: 480

Step-by-step explanation:

8x6x10=480

48x10

480

3 0
3 years ago
Read 2 more answers
2. Company A packages roofing nails in boxes that are normally distributed with a mean of 276 nails and a standard deviation of
Natali5045456 [20]

Answer:

Company B

Step-by-step explanation:

We would use z score formula

z = (x - μ) / σ

x = raw score

μ = mean

σ = Standard deviation

let x = 260 with the mean μ1 = 276 and standard deviation σ = 5.8

let x = 260 with the mean μ2 = 252 and standard deviation σ = 3.4

z1 = (x- μ1) / σ = (260- 276) / 5.8 = -2.7586206897 = -2.76

z2 = (x2 - μ) / σ = (260 -252) / 3.4= 2.3529411765 = 2.35

Comparing the two z scores, we can see that company B has the probability of producing 260 nails because it has a z score of 2.35 compared to company A with a z score of -2.76.

6 0
3 years ago
What percentage is 11 of 88
Vera_Pavlovna [14]

Answer:

The answer is: 12.5%

Step-by-step explanation:

Divide 11 by 88. Multiply the result by 100 to get percent.

11/88 = 0.125

0.125 x 100 = 12.5%

Hope this Helps!! Have an Awesome Day!! (-:

6 0
3 years ago
laura quiere cubrir con papel china una puesta como la que se muestran el dibujo cuánto centímetros cuadrados tendrá que cubrir
TEA [102]

Answer:

El área a cubrir es de 4800 cm^2.

Step-by-step explanation:

<em>La pregunta está incompleta:</em>

<em>Laura quiere cubrir con papel de china una puerta como la que se muestra en el dibujo cuánto es centímetros cuadrados. Las medidas son 80 cm de largo y 60 cm de ancho.</em>

Tenemos que calcular el área que representa la puerta, cuyos lados son 80 cm y 60 cm.

El área A se calcula multiplicando ambos lados:

A=80\,cm\cdot60\,cm=4800\,cm^2

7 0
3 years ago
Rewrite the quadratic function in intercept or factored form<br><br> g(m)=3m^2+5-8m
gogolik [260]

Split the second term in 3m^2 + 5 - 8m into two terms

3m^2 - 3m - 5m + 5

Factor out the common terms in the first two terms, then in the last two terms.

3m(m - 1) - 5(m - 1)

Factor out the common term m - 1

<u>(m - 1)(3m - 5)</u>

4 0
3 years ago
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