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FromTheMoon [43]
4 years ago
14

You score a 82 and 86 on the first 2 tests in your math class. You would like for your average after 3 tests to be at least a 90

. Assuming that each test is worth 100 points. Is this possible? If not, why not? If yes, what score must you make to have at least a 90 average. Set up the inequality to represent the problem. Then solve. Write a sentence explaining your answer.
Mathematics
1 answer:
tatiyna4 years ago
6 0
Sorry it is not you would need a 102
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Vicki would like to estimate the probability of tails coming up fewer than 2 times in 3 coin flips.
Ganezh [65]

Answer:

0.4

Step-by-step explanation:

Vicki has a computer randomly select 0 or 1 three times, with 0 representing <u>heads</u> and 1 representing <u>tails</u>. The results of 15 trials are shown in the table.

110    111   000    011   000

010   101   100   000   000

111     101    110     101    111

Vicki would like to estimate the probability of tails (1) coming up fewer than 2 times (must be 0 or 1 digit 1 in record). All such seuences are marked in bold int the above table. There are 6 such trails. Hence, Vicki's estimated probability, based on this simulation is

\dfrac{6}{15}=\dfrac{2}{5}=0.4

6 0
3 years ago
I really need help!!!!!!
Citrus2011 [14]

We know that, In a Right Angled Triangle :

✿ (Hypotenuse)² = (First Leg)² + (Second Leg)²

From the Diagram :

✿ Hypotenuse = x

✿ First Leg \bf{= 2\sqrt{3}}

✿ Second Leg \bf{= \sqrt{6}}

\bf{\implies x^2 = (2\sqrt{3})^2 + (\sqrt{6})^2}

\bf{\implies x^2 = 12 + 6}

\bf{\implies x^2 = 18}

\bf{\implies x = 3\sqrt{2}}

3 0
4 years ago
How to find the value of x
stealth61 [152]

Answer:

×=1

Multiply both sides of the equation by 12, the least common multiple of 4,3.

3x+4(x−1)=3

Use the distributive property to multiply 4 by x−1.

3x+4x−4=3

Combine 3x and 4x to get 7x.

7x−4=3

Add 4 to both sides.

7x=3+4

Add 3 and 4 to get 7.

7x=7

Divide both sides by 7.

x=

7

7

Divide 7 by 7 to get 1.

x=1

5 0
4 years ago
I WILL MARK BRAINLIEST
mixas84 [53]

Answer:  ABC is rotated 90° around the origin, then is reflected over the y-axis.

This is my best guess. Hope this is right and I hope this helps you out. So sorry if it is wrong, mate.

8 0
3 years ago
Gia wants to go skating and needs to figure out which place offers a better deal. Roller haven charges a one-time rental free of
CaHeK987 [17]
The system of equations would be:

3x+10
4x+5
5 0
3 years ago
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