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3 years ago

15

A researcher wanted to compare the final test scores of students who used two different types of study materials. The researcher

s randomly selected two samples of 20 students using each type of material

1 answer:

Over [174]3 years ago

3 0

Answer:

well probably to see if they got the same answer

Step-by-step explanation:

You might be interested in

5 hundred thausand 12 ten thausand 1 thausand 15 tens and 7 ones in standar form

Pachacha [2.7K]

The best to do this is like this:

5 hundred thousand would be 500,000

12 of 10,000 (should be 12,000)

1,000 tens is 10,000 plus 15 tens is 150 so this is 10,150

7 ones

522,157

7 0

3 years ago

A plain pretzel weigh 17 grams and ounce that pretzel is covered in chocolate it weighs 42 grams. What is the percentage of choc

Bess [88]

Answer:

about 60% of the weight is chocolate

Step-by-step explanation:

The weight of the pretzel as a fraction of the total is ...

17/42 × 100% ≈ 40.48%

So, the weight of the chocolate is the fraction ...

100% -40.48% = 59.52% ≈ 60%

3 0

3 years ago

NEED HELP ASAP WILL MARK BRAINLIEST!!

Anettt [7]

Answer:

Step-by-step explanation:

Hi there!

Here;

The question is: 3÷ $\frac{1}{6}$

→ Take reciprocal of 1/6, then;

= 3* $\frac{6}{1}$

= 18

So, the answer is option D.

Hope it helps!

8 0

2 years ago

Read 2 more answers

A population of squirrels on an island has a carrying capacity of 350 individuals. If the maximum rate of increase is 1.0 per in

TiliK225 [7]

Answer:

The population growth rate is <u>59</u> squirrels per year.

Step-by-step explanation:

Given:

A population of squirrels on an island has a carrying capacity of 350 individuals. If the maximum rate of increase is 1.0 per individual per year and the population size is 275.

Now, to find the population growth rate.

Carrying capacity ( $K$ ) = 350.

Maximum rate ( $r_{max}$ ) = 1.0 per individual per year.

Population size ( $N$ ) = 275.

Now, to get the population growth rate we put formula:

$\frac{dN}{dT}= r_{max}\frac{K-N}{K}N$

$\frac{dN}{dT}=1.0\times \frac{350-275}{350}\times 275\\\\\frac{dN}{dT}=1.0\times \frac{75}{350}\times 275\\\\\frac{dN}{dT}=1.0\times 0.214\times 275\\\\\frac{dN}{dT}=58.85.$

<u><em>So, rounding to nearest whole number of the population growth rate is 59 squirrels per year.</em></u>

Therefore, the population growth rate is 59 squirrels per year.

6 0

3 years ago

A football team lost 5 yards on each of 3 plays. Explain how you could use a number line to find the teams change in field posit

uysha [10]

<span>You would start out at in the middle of a number line (horizontal). After the first play, you would move to the left on the line 5 spots (to simulate 5 yards lost) and then make a dot to show your new position. You would do the same thing for the next two plays, moving 5 spots to the left each play and creating a new starting point each time. The total spots moved after the 3 plays is 15 spots to the left.</span>

4 0

4 years ago