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3 years ago

18. A recent article claimed that women are waiting longer to have their first

Mathematics

1 answer:

Leona [35]3 years ago

6 0

Answer:E

Step-by-step explanation:

The margin of error of 1.5 years indicates that we are confident the population mean age is captured i. The interval 26-1.5=24.5 to 26+1.5=27.5 years old. Therefore, it is plausible that the average age of first time mothers is 27 years old.

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What’s the least common multiple of 12 and 2

NNADVOKAT [17]

For example, for LCM (12,30) we find:

Using the set of prime numbers from each set with the highest exponent value we take 22 * 31 * 51 = 60. Therefore LCM (12,30) = 60.

7 0

3 years ago

Tanya [424]

Answer:

$2.50$

Step-by-step explanation:

Given

$(x_1,y_1) = (-1,0.8)$

$(x_2,y_2) = (0,2)$

$(x_3,y_3) = (1,5)$

$(x_4,y_4) = (2,12.5)$

Required

The rate of change (b)

The above graph is represented as:

$y = ab^x$

For: $(x_2,y_2) = (0,2)$ ;

We have:

$y = ab^x$

$2 = a * b^0$

$2 = a *1$

$2 = a$

$a = 2$

For $(x_3,y_3) = (1,5)$ ,

We have:

$y = ab^x$

$5 = a * b^1$

$5 = a * b$

Substitute $a = 2$

$5 = 2 * b$

Divide by 2

$2.5 = b$

$b = 2.5$

<em>Hence, the rate of change is 2.50</em>

7 0

3 years ago

The pressure of a man sitting on a surface with an area of 24 square meters is 15Pa calculate the force exerted by the man

pogonyaev

Answer:

help me and i will help you

Step-by-step explanation:

8 0

3 years ago

A bag contains 3 red pens 5 blue pens and 2 black pens a pen is selected at random and is not replaced what is the probability o

LUCKY_DIMON [66]

Answer: 1/6

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Can someone please help? the value of a plot of land increases 8% every year. the value is $350000 now, and the owner wants to s

Andre45 [30]

The value of b in the exponential function which is formed by Shanna for the price of land is 8% or 0.08.

<h3>What is percentage increase ?</h3>

Percentage increase is the amount added to the initial value in the percentage part.

The value of a plot of land which is increases 8% every year has the current value of $350000.

The final value owner wants is $570000. Shanna writes an exponential function of the form, to model the value,v, of the land in t years as,

$v(t)=a\times b^t$

Here, in this exponential function the value of a is fixed or initial term which is $350000 and the value of b is the constant term which is change factor. Here, the value of b is 8%.

b=8%

b=8/100

b=0.08

Thus, the value of b in the exponential function which is formed by Shanna for the price of land is 8% or 0.08.

Learn more about the percentage increase here;

brainly.com/question/2085058

#SPJ1

6 0

2 years ago