PLSSS HELLLLLLP????The SAT this year has a mean of 500 and a standard deviation of 50. What percent of students scored between 400 and 600?

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Answer 1

Answer: The SAT this year has a mean of 500 and a standard deviation of 50. What percent of students scored between 400 and 600?This is equivalent to a score of 500 ± 2 SD (2 standard deviations)= 0.9545
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If RS=8y + 4, ST=4y + 8, and RT=5y - 9, find the value of y. Find RS, ST, RT

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Is any other information given? Because I do not see any way this can be solved unless we know the perimeter, area, or even one of the angles, anything that can be used to form a relationship between the 3 sides.

If a plane departed at 12:30 A.M. and arrived at 8:15 A.M., what was the length of time for the flight?

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Seven hours and fourty five minutes

What number is 164,502,423 decreased by 100,000

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If we decrease 164,502,423 by 100,000 we get 164,402,423

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If the hypotenuse is 41 inches, and one of the legs is 40 inches, what is the length of the other leg in inches?

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A.T.Q,

41² = 40²+x²

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thats the right answer i just took the test its nine

Solve the inequality: 3. n - 23 < -2.5

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Answer:

$\Huge \boxed{\boxed{\bf{n < 20.5}}}$

Step-by-step explanation:

To solve the inequality $\tt{n - 23 < -2.5 }$ , we want to isolate the variable $\tt{n}$ .

Let's begin by adding 23 to both sides of the inequality:

$\tt{n - 23 + 23 < -2.5 + 23}$

This simplifies to:

$\tt{n < 20.5}$

Therefore, the solution to the inequality is $\bf{n < 20.5}$ .

#BTH1

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Rachel is using grouping to find the factors of a quadratic expression. She has reached the step shown below. Determine the factored form and the standard form of the quadratic polynomial. Factored form: (3x - 4)(x + 2) Standard form: 3x2 + 2x - 8 Factored form: (3x + 2)(x + 4) Standard form: 3x2 + 2x + 8 Factored form: (3x - 2)(x - 4) Standard form: 3x2 - 2x - 8 Factored form: (3x + 4)(x - 2) Standard form: 3x2 - 2x + 8 Reset Submit Rewriting Expressions: P Unanswered