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Fantom [35]
2 years ago
5

Shirley is drawing triangles that have the same area. the base of each triangle inversely with the heigh. what are the possible

base and height of a second triangle if the first triangles base is 12 and its height is 8.
select one:

a. 120 and 80
b. 10 and 10
c. 60 and 36
b. 16 and 6 ​
Mathematics
1 answer:
Oksi-84 [34.3K]2 years ago
7 0

Answer:

A

Step-by-step explanation:

they're proportional

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A. 7 ft<br><br> B. 8 ft<br><br> C. 49 ft<br><br> D. 576 ft
AleksAgata [21]
Your equation is gonna be a^2-24^2=25^2 and your answer is 7.
4 0
2 years ago
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An instructor who taught two sections of Math 161A, the first with 20 students and the second with 30 students, gave a midterm e
uranmaximum [27]

Answer:

<em>The answers are for option (a) 0.2070  (b)0.3798  (c) 0.3938 </em>

Step-by-step explanation:

<em>Given:</em>

<em>Here Section 1 students = 20 </em>

<em> Section 2 students = 30 </em>

<em> Here there are 15 graded exam papers. </em>

<em> (a )Here Pr(10 are from second section) = ²⁰C₅ * ³⁰C₁₀/⁵⁰C₁₅= 0.2070 </em>

<em> (b) Here if x is the number of students copies of section 2 out of 15 exam papers. </em>

<em>  here the distribution is hyper-geometric one, where N = 50, K = 30 ; n = 15 </em>

<em>Then, </em>

<em> Pr( x ≥ 10 ; 15; 30 ; 50) = 0.3798 </em>

<em> (c) Here we have to find that at least 10 are from the same section that means if x ≥ 10 (at least 10 from section B) or x ≤ 5 (at least 10 from section 1) </em>

<em> so, </em>

<em> Pr(at least 10 of these are from the same section) = Pr(x ≤ 5 or x ≥ 10 ; 15 ; 30 ; 50) = Pr(x ≤ 5 ; 15 ; 30 ; 50) + Pr(x ≥ 10 ; 15 ; 30 ; 50) = 0.0140 + 0.3798 = 0.3938 </em>

<em> Note : Here the given distribution is Hyper-geometric distribution </em>

<em> where f(x) = kCₓ)(N-K)C(n-x)/ NCK in that way all these above values can be calculated.</em>

7 0
3 years ago
Question 2 of 10
mariarad [96]

Answer: (4x−9)(3x+4)   D

Step-by-step explanation:

Factor 12x2−11x−36

12x2−11x−36

=(4x−9)(3x+4)

5 0
2 years ago
4. Factor Completely *<br> (1 Point)<br> 5x3 + 40x2 - 2x - 16
mart [117]

Answer:

(x+8)(5x2−2)

Step-by-step explanation:

Hope this helps have a nice day :)

4 0
2 years ago
Are the following ordered pairs in a proportional relationship? (2,3) and (10,16)
gavmur [86]
The answer A yes (2.3)
8 0
3 years ago
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