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3 years ago

Need help don't really get the question

Mathematics

1 answer:

marishachu [46]3 years ago

8 0

Answer:

There are 24 squares

Step-by-step explanation:

By taking the small triangles and connecting them to make squares and adding those to the number of squares already there there are 24 squares in total.

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Describe and correct the error in determining which type of function the table represents.

topjm [15]

Answer:

"Consecutive y-values change by multiplying previous value by a constant amount. So, the table represents an exponential function."

Step-by-step explanation:

In reality, the table represents an exponential function instead of a linear function, since values on domain change arithmetically at constant rate, whereas values on range change geometrically at constant rate.

Correct phrase may be: "Consecutive y-values change by multiplying previous value by a constant amount. So, the table represents an exponential function."

5 0

3 years ago

What are the extremes of the followin proportion? 3/15=12/60

cupoosta [38]

Answer:

3 and 60

Step-by-step explanation:

A proportion is a mathematical expression in which two ratios are shown to be equal.

Hence

$a/b = c/d \\$ is proportion .

it can be also written as a:b= c:d

The four part a,b,c,d can be divided into two groups

means : b and c are means
extremes: a and d are extremes

based on above discussion

in proportion 3/15=12/60

3 is in position of a

and

60 is in position of d

Thus, 3 and 60 are extremes in 3/15=12/60 proportion.

4 0

3 years ago

One attorney claims that more than 25% of all the lawyers in Boston advertise for their business. A sample of 200 lawyers in Bos

icang [17]

Answer:

There is enough evidence to support the attorney’s claim

Step-by-step explanation:

Given that one attorney claims that more than 25% of all the lawyers in Boston advertise for their business.

Sample size n =200

Sample proportion = $63/200=0.315$

Hypotheses:

$H_0: p=0.25\\H_a: p>0.25$

(right tailed testat 5% significance level)

Assuming H0 to be true, std error of p = $\sqrt{0.25*0.75/200 \\=0.0306$

Test statistic z = p diff/std error

= $\frac{0.315-0.25}{0.0306} \\=2.12$

p value for one tailed =0.0170

Since p <0.05 we reject null hypothesis

There is enough evidence to support the attorney’s claim

5 0

3 years ago

Select ALL the correct answers.

weeeeeb [17]

Answer:

(8,16) (0,22) (10,10)

Step-by-step explanation:

Let x represents the number of hours spent volunteering in school and y represents the number of hours spent volunteering outside of school.

Since each member must spend a minimum of 20 hours doing volunteer work each semester.

The equation forms : $x+y\geq 20$ ....(1)

Also given is that the number of hours spent volunteering at school activities can be no more than twice the number of hours spent volunteering outside of school, then equation becomes:

$x\leq 2y$ .....(2)