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mars1129 [50]
3 years ago
7

Suppose lifetime of certain type of car batteries are

Mathematics
1 answer:
masya89 [10]3 years ago
7 0

Answer:

Follows are the solution to the given points:

Step-by-step explanation:

The brand (M) will become more reliable as the standard deviation of an (M) brand will be much lower than the standard deviation of (G) brand.

such as four years,

Calculating the z score for G brand= \frac{(4-3)}{1} = \frac{1}{1} = 1

Calculating the z score for M brand= \frac{(4-3)}{(\frac{1}{3})} = \frac{(1)}{(\frac{1}{3})} = 1 \times \frac{3}{1}= 3.

Because the z mark of the (G) brand is less, it is much more probable that the (G) Brand could last four years. It is because the variability of the (G) brand is very high, which allows lasting longer by expanding its expansion.

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Use the distributive property to write the following expression in expanded form 2 ( b + c)​
lapo4ka [179]

Answer:

Step-by-step explanation:

2b+2c

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3 years ago
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What amount will an account have after 2 years if $2950 is invested at an annual rate of 8.4% compounded quarterly? Also, determ
ankoles [38]

The amount if $2950 is invested at an annual rate of 8.4% compounded quarterly is $3486

<h3>Compound interest</h3>

Compound interest is given by:

A=P(1 + \frac{r}{n} )^{nt}

where t is the period, r is the rate, P is the initial amount, A is the final amount and n is the times compounded.

Given P = 2950, r = 0.084, n = 4, t = 2, hence:

A=2950(1+\frac{0.084}{4} )^{4*2}\\\\A=\$3486\\\\For \ r=0.078, A=3742,t=2,n=1:\\\\3742=P(1+\frac{0.078}{1} )^{1*2}\\\\P=\$3220

The amount if $2950 is invested at an annual rate of 8.4% compounded quarterly is $3486

Find out more on Compound interest at: brainly.com/question/24924853

3 0
2 years ago
How long is a string reaching from the top of a 13-ft pole to a point on the ground that is 7ft from the base of the pole ?
Shalnov [3]
20 feet should be the correct answer. not sure if there's any choices
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3 years ago
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The displacement (in centimeters) of a particle moving back and forth along a straight line is given by the equation of motion s
sweet-ann [11.9K]

Answer:

<em>V(t) = π(4cos πt -5sinπt) cm</em>

Step-by-step explanation:

Given the displacement (in centimeters) of a particle moving back and forth along a straight line is given by the equation of motion s = 4 sin πt + 5 cos πt, where t is measured in seconds, the average velocity of the body will be expressed as the change in displacement of thee particle with respect to time.

This is expressed mathematically as V = ds/dt

Differentiate the displacement function to get the velocity V

V = 4πcos πt + (-5πsin πt)

open the parenthesis

V = 4πcos πt - 5πsin πt

bring out the common factor

V = π(4cos πt -5sinπt)

<em>Hence the average velocity of the body during each time is expressed as </em>

<em>V(t) = π(4cos πt -5sinπt) cm</em>

<em></em>

4 0
3 years ago
A bucket holds 6 liters of water. If a ladle can scoop out 1/5 of a liter, how many scoops will it take to empty the bucket?
Anna71 [15]

Answer:

The answer is 30 scoops.

Step-by-step explanation:

6/(1/5) is also equal to 6x5. If we do this problem 6x5 we get 30.

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