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Umnica [9.8K]
2 years ago
6

A cell phone company orders 500 new phones from a manufacturer. If the probability of a phone being defective is 2.9%, predict h

ow many of the phones are likely to be defective. Round to the nearest whole number. 12 phones 15 phones 18 phones 145 phones
Mathematics
2 answers:
alisha [4.7K]2 years ago
8 0
<span>500  x 0.029 = 14.5 

answer
about </span><span>15 phones </span>
alex41 [277]2 years ago
4 0

Answer:

15 phones, option B.

Step-by-step explanation:

A cell phone company orders new phones = 500

The probability of a phone  is being defective = 2.9%

2.9% of 500 phones are = \frac{2.9}{100} × 500

0.029 × 500 = 14.5 rounded to the nearest whole number is 15

The probability of 15 phones are defective out of 500 phones.

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−px+r=−8x−2 solve for x<br> Plx I need this ASAP
svet-max [94.6K]

Answer:

x=\frac{2+r}{p-8\\}

Step-by-step explanation:

3 0
3 years ago
Uhhhhhhhhhhhhhhhhhh what is 2+2-1=?????????
gregori [183]
2+2-1=3
2+2=4
And 4 minus 1 equals 3
8 0
2 years ago
In factored form please help
Brilliant_brown [7]

Answer:

3rd option

Step-by-step explanation:

\frac{3x^2-3}{x^2-5x+4} ( factorise numerator and denominator )

3x² - 3 ← factor out 3 from each term

= 3(x² - 1²) ← x² - 1 is a difference of squares and factors in general as

a² - b² = (a - b)(a + b)

x² - 1

= x² - 1²

= (x - 1)(x + 1) , then

3x² - 3 = 3²(x - 1)(x + 1) ← in factored form

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

x² - 5x + 4

consider the factors of the constant term (+ 4) which sum to give the coefficient of the x- term (- 5)

the factors are - 1 and - 4 , since

- 1 × - 4 = + 4 and - 1 - 4 = - 5 , then

x² - 5x + 4 = (x - 1)(x - 4)

then

\frac{3x^2-3}{x^2-5x+4} = \frac{3(x-1)(x+1)}{(x-1)(x-4)} ← in factored form

3 0
1 year ago
Circle T is shown. Angle Q S R intercepts arc Q R. Angle Q S R is 52 degrees. What is the measure of arc Q R? 26° 52° 104° 128°
victus00 [196]

Answer:

104 degrees'

Step-by-step explanation:

Find the diagram attached

According to the theorem;

Angle at the vertex is half the angle at its intercepted arc

Given

Angle at the vertex = 52 degrees

Angle at the intercepted arc = arc QR

Hence;

52 = 1/2 arcQR

Cross multiply

52 * 2 = arcQR

104 = arc QR

Swap

arc QR = 104 degrees'

5 0
2 years ago
Read 2 more answers
What is 2/3 x 4 1/5 as a mixed fraction?
EleoNora [17]
=2/3 x 4 1/5
Change 4 1/5 to improper fraction
=2/3 x 21/5

Multiply the two numerators together and multiply the two denominators together

= (2*21)/(3*5)
=42/15

Convert back to mixed fraction

= 2 12/15
Simplify by dividing 3 into top & bottom

ANSWER:
= 2 4/5 simplest mixed fraction

Hope this helps! :)
6 0
2 years ago
Read 2 more answers
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