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3 years ago

Need to know now!!! giving 10 points what -6+8

Mathematics

2 answers:

Simora [160]3 years ago

7 0

Answer:

the answer is 2...................

Step-by-step explanation:

-6+8=2

Nina [5.8K]3 years ago

6 0

Answer:

-6+8= 2 draw a line then write at the center 0 to the left write negative integers to your write positive integers-6 +8 move 8 steps forward from-6 and you will be at 2 that's the answer

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A professor at a local university noted that the exam grades of her students were normally distributed with a mean of 73 and a s

Umnica [9.8K]

Answer:

88.51 is the minimum score needed to receive a grade of A.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 73

Standard Deviation, σ = 11

We are given that the distribution of exam grades is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

We have to find the value of x such that the probability is 0.0793.

$P( X \geq x) = P( z \geq \displaystyle\frac{x - 73}{11})=0.0793$

$= 1 -P( z \leq \displaystyle\frac{x - 73}{11})=0.0793$

$=P( z \leq \displaystyle\frac{x - 73}{11})=0.9207$

Calculation the value from standard normal z table, we have,

$P(z \leq 1.410) = 0.9207$

$\displaystyle\frac{x - 73}{11} = 1.410\\x =88.51$

Hence, 88.51 is the minimum score needed to receive a grade of A.

3 0

3 years ago

Use what you know about the angle sum theorem for triangles and your algebra skills to solve for x and find the measure of all t

melomori [17]

Answer:

2x° = 45°, 3x° = 67.5°

Step-by-step explanation:

Sum of angles in a triangle = 180°

2x+3x+3x=180°

8x=180°

x=22.5°

2x=22.5°x2=45°

3x=22.5°x3=67.5°

8 0

2 years ago

Standard form of 5y=35+10x what is the answer

ss7ja [257]

Answer: y=7+2x

Step-by-step explanation: Divide 5 by all. 5y/5=35/5 +10x/5.

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3 years ago

Given: ZBECis a right angle<br> Prove: ZAEB and ZCED are complementary

MrRissso [65]

2x77}{x} theis way is the best answee

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2 years ago

Someone help. (Find the area of a rectangle with a lenght of 5a^2 b^4 and a width of (3ab^3)^2

Dmitry_Shevchenko [17]

Answer:

All you do is just multiply them.

Step-by-step explanation:

5a^2 b^4(3ab^3)^2=

45(a^(4))(b^(10))

3 0

2 years ago

Need to know now!!! giving 10 points what -6+8​

Need to know now!!! giving 10 points what -6+8