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andre [41]
3 years ago
10

FREE POINT ANSWER QUESTION AND GET A BOX OF CEARAL!!!

Mathematics
2 answers:
ddd [48]3 years ago
7 0

Answer:

cubes are 3-d while squares are 2-d so in order to solve them you need different equations.

givi [52]3 years ago
6 0

Answer:thank you but what do you mean

Step-by-step explanation:

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A researcher wants to test whether a certain sound will make rats do worse on learning tasks. It is known that an ordinary rat c
AveGali [126]

Answer:

So we reject the null hypothesis and accept the alternate hypothesis that rats learn slower with sound.

Step-by-step explanation:

In this data we have

Mean= u = 18

X= 38

Standard deviation = s= 6

1) We formulate the null and alternate hypothesis as

H0:  u = 18  against           Ha : u > 18  One tailed test .

2) The significance level alpha = ∝= 0.05 and  Z alpha has a value ± 1.645 for one tailed test.

3)The test statistics used is

Z= X- u / s

z= 38-18/6= 3.333

4) The calculated value of z = 3.33 is greater than the z∝ = 1.645

5) So we reject the null hypothesis and accept the alternate hypothesis that rats learn slower with sound.

First we set the criteria for determining the true of value of the variable. That whether the rats learn in less or more than 18 trials.

Then we find the value of z for the given significance value given and the test about to be checked.

Then the test statistic is determined and calculated.

Then both value of z and z alpha re compared. If the test statistics falls in the rejection region  reject the null hypothesis and conclude alternate hypothesis is true.

The figure shows that the calulated z value lies outside the given z values

4 0
3 years ago
Nick has $7.00. Bagels cost $0.75 each, and a small container of cream cheese costs $1.29. Write an inequality to find the numbe
jeyben [28]
Since the question only asks for bagels, put the cream-cheese idea aside.
The total spent has to be less than $7 so an equation can be this: $0.75x<$7 where x is the number of bagels
3 0
3 years ago
A bakery offers a sale price of $3.40 for 4 muffins. What is the price pe dozen?​
maxonik [38]

Answer:

10.2

Step-by-step explanation:

3.40 * 3 = 10.2

5 0
3 years ago
write the equation in slope-intercept form with y intercept of −3 and an x intercept of −4.5.plz help thanks!
Mashcka [7]

The equation of the line is y = -2/3x - 3.

To find this, we first need to turn the intercepts into ordered pairs.

x intercept: (-4.5, 0)

y intercept: (0, -3)

Now we can use these two points and the slope equation to find slope.

m = (y2 - y1)/(x2 - x1)

m = (0 - -3)/(-4.5 - 0)

m = 3/-4.5

m = -2/3

Now that we have the slope, we can use slope intercept form to find the intercept.

y = mx + b

-3 = 2/3(0) + b

-3 = 0 + b

-3 = b

Which allows us to model the equation as y = -2/3x - 3

4 0
3 years ago
Estimate 1513÷518<br> 15<br> 1<br> 3<br> ÷<br> 5<br> 1<br> 8<br> to the nearest whole number
Nonamiya [84]
I believe it would be three hope this helps have a great day
4 0
2 years ago
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