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3 years ago

Plz answer mhanifa!

Mathematics

1 answer:

wel3 years ago

5 0

Answer:

I'm not mhanifa, but I am also really good at math (i'm in accelerated math rn) so I will try to help too.

Step-by-step explanation:

My tips:

1. Try to focus on formula's not small things like answers or definitions (they are still important but be more focused on formulas), this will really help you when you need to solve eqautions.

2. Don't over-study. Basically don't overload yourself with information, focus on the major things, if you overload yourself, you may not remember everything, and that would not be very helpful at all.

3. Don't try to study the things you are good at, study the things you struggle with, this will help you ALOT.

4. Take your time, you don't want to mess up because you are rushing, and you know math is really annoying and you can get the answer wrong for one incorrect calculation.

5. Get your sleep, this is very important

I hope this helps!! good luck on your EOG!!!!!!

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3 years ago

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6 0

3 years ago

Read 2 more answers

A security fence encloses a rectangular area on one side of a park in a city. three sides of fencing are? used, since the fourth

alexandr1967 [171]

Let x = length of the park
Let y = width of the park

Because the area is 392392 ft², therefore
xy = 392392 (1)
Because three sides of fencing measure 5656 ft, therefore
2x + y = 5656 (2)
That is
y = 5656 - 2x (3)
Substitute (3) into (1).
x(5656 - 2x) = 392392
5656x - 2x² = 392392
2x² -5656x + 392392 = 0
x² - 2828x + 196196 = 0

Solve with the quadratic formula.
x = (1/2)*[2828 +/- √(2828² - 4*196196)]
= 2756.83 or 71.17

Answer:
The possible dimensions are 2756.8 ft and 71.2 ft (nearest tenth)

3 0

3 years ago

A new cream that advertises that it can reduce wrinkles and improve skin was subject to a recent study. A sample of 50 women ove

Harman [31]

Answer:

Option A is right.

Step-by-step explanation:

Given that a new cream that advertises that it can reduce wrinkles and improve skin was subject to a recent study. A sample of 50 women over the age of 50 used the new cream for 6 months. Of those 50 women, 44 of them reported skin improvement(as judged by a dermatologist)

$H_0: p=0.40\\H_a: p >0.40$

(Right tailed test)

Sample size = 50

Std error of proportion = $\sqrt{\frac{pq}{n} } \\=0.0693$

p difference= $\frac{44}{50} -0.40\\=0.48$

Z statistic = p diff/std error = 6.928

p value <0.00001

Since p is less than alpha, reject null hypothesis.

A. We can reject the null hypothesis that p=0.4 and accept that p>0.4. That is, the cream can improve the skin of more than 40% of women over 50.

4 0

4 years ago

Karl drove for 4 hours. For part of the trip he drove at 50 miles per hour. For the rest of the trip he drove at 100 miles per h

Nataliya [291]

Answer:

3 hours

Step-by-step explanation:

250 = 50h + 100(4 - h)

250 = 50h + 400 - 100h

250 = -50h + 400

-150 = -50h

h = 3

6 0

3 years ago