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Kruka [31]
3 years ago
5

Find the range and interquartile range of the data below. 13, 14, 15, 18, 19, 19, 19, 20

Mathematics
1 answer:
ELEN [110]3 years ago
7 0
The answer to this problem is 7
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help me with the Quadratic equation.... x2+ (p - 5) x + 2q = 0 has the roots −3 and 6. Find the value of P and the value of q.​
nirvana33 [79]

Step-by-step explanation:

The quadratic equation is x² + (p - 5)x + 2q = 0.

By Vieta's Formula,

we have SOR = -b/a and POR = c/a.

=> (-3) + (6) = -(p - 5) and (-3)(6) = 2q.

=> 3 = 5 - p and -18 = 2q

Hence, p = 2 and q = -9.

Alternate Method:

We have (x + 3) and (x - 6) as factors of the quadratic equation x² + (p - 5)x + 2q = 0.

=> (x + 3)(x - 6) = x² - 3x - 18.

By Comparing Coefficients,

(p - 5) = -3 and 2q = 18.

Hence p = 2 and q = -9.

8 0
2 years ago
Which excerpt from the poem "Girl Powdering Her Neck" by Cathy Song is an example of a simile?
fgiga [73]

Answer: D “she dips a corner of her sleeve / like a brush into water”

Step-by-step explanation:

8 0
3 years ago
The sum of the measures of the interior angles of a convex polygon is 3960°.
scZoUnD [109]

Step-by-step explanation:

The sum of the interior angles of a convex regular polygon is 180 times (n-2), where n is the number of sides. Since we already know the sum, we can write 3,960 = 180(n-2). If you solve for n in this equation, you will have the number of sides.

5 0
3 years ago
In the equation -2(2-r)=4(5-r) what is r?
valina [46]
-2(2-r)=4(5-r)\\
-4+2r=20-4r\\
6r=24\\
r=4
8 0
3 years ago
X+2=12<br><br> Please take my points
Pavel [41]
X + 2 = 12
subtract both sides by 2
x = 10
3 0
3 years ago
Read 2 more answers
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