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Luda [366]
2 years ago
13

−x2 + x + 6 = 2x + 8 The equation is represented by the system shown here. Linear-Quadratic Equation This system intersects in p

lace(s).
Mathematics
1 answer:
elena55 [62]2 years ago
6 0

Answer:

1) A

2) C

Step-by-step explanation:

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A small cube with side length 6y is placed inside a larger cube with side length 4x^2. What is the difference in the volume of t
fomenos

the different volume is the numbers. 4*2*6=?


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2 years ago
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Which statement is true regarding the functions on the graph?
Mrrafil [7]
Answer: f(3)=g(3)
I believe that is correct.
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3 0
2 years ago
The heights of students at a college are normally distributed with a mean of 175 cm and a standard deviation of 6 cm. One might
frosja888 [35]

Answer:

25

Step-by-step explanation:

The Empirical Rule states that, for a normally distributed random variable:

68% of the measures are within 1 standard deviation of the mean.

95% of the measures are within 2 standard deviation of the mean.

99.7% of the measures are within 3 standard deviations of the mean.

In this problem, we have that:

Mean = 175cm

Standard deviation = 6 cm

Percentage of students below 163 cm

163 = 175 - 2*6

So 163 is two standard deviations below the mean.

By the Empirical rule, 95% of the heights are within 2 standard deviations of the mean. The other 100-95 = 5% are more than 2 standard deviations of the mean. Since the normal distribution is symmetric, 2.5% of them are more than 2 standard deviations below the mean(so below 163cm) and 2.5% are more than two standard deviations above the mean.

2.5% of the students have heights less than 163cm.

Out of 1000

0.025*1000 = 25

25 is the answer

8 0
2 years ago
Read 2 more answers
Rewrite (2x + 8) + 4 using the associative property. Then simplify.
skelet666 [1.2K]

Answer:

2x + 12

Step-by-step explanation:

Example of Associative Property Addition:

a + (b+c) = b + (a+c)

Now, implement it to the given expression:

(2x+8) + 4 = 2x + (8+4)

That simplifies to:

2x + 12

4 0
2 years ago
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Suppose a term of a geometric sequence is a4 = 121.5 and the common ratio is 3. write the formula for this sequence in the form
9966 [12]
The rule of the <span>geometric sequence is a* r^{n-1}
a ⇒⇒⇒ </span><span>the first term
r ⇒⇒⇒ </span><span>common ratio

Given: the fourth term </span>(a4) <span>= 121.5   and the common ratio = 3  and   n = 4

∴</span><span> 121.5 = a* 3^{4-1}
∴ a = 121.5/3³ = 121.5/27 = 4.5

So, T</span><span>he formula for this sequence will be</span><span>    4.5 * 3^{n-1}</span>
8 0
2 years ago
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