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guapka [62]
3 years ago
9

Which expression is equivalent to (3/4)^-2 A: -9/16 B: 16/9 C: -6/8 D: 9/16

Mathematics
1 answer:
UkoKoshka [18]3 years ago
7 0
B is the answer B is the answer B is the answer B is the answer
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What is the slope of the line containing (6, -7) and (5, -9)?<br> A) 1<br> B) -2.<br> C) 2<br> D) 16
zloy xaker [14]

Answer: C

Step-by-step explanation:

y2-y1/x2-x1

-9+7/5-6 = 2

7 0
3 years ago
In a cohort of 35 graduating students, there are three different prizes to be awarded. If no student can receive more than one p
sweet [91]

We have been given in a cohort of 35 graduating students, there are three different prizes to be awarded. We are asked that in how many different ways could the prizes be awarded, if no student can receive more than one prize.

To solve this problem we will use permutations.

_{r}^{n}\textrm{P}={_{3}^{35}\textrm{P}}

We know that formula for permutations is given as

_{r}^{n}\textrm{P}=\frac{n!}{(n-r)!}

On substituting the given values in the formula we get,

{_{3}^{35}\textrm{P}}=\frac{35!}{(35-3)!}=\frac{35!}{32!}

=\frac{35\cdot 34\cdot 33\cdot 32!}{32!}\\&#10;\\&#10;=35\cdot 34\cdot 33=39270

Therefore, there are 39270 ways in which prizes can be awarded.


6 0
3 years ago
If the range of the function f(x) = 7x – 2.7 is {14.1, 30.9, 41.4, 58.9, 68}, what is its domain?
Drupady [299]

domain is {2.4, 4.8, 6.3, 8.8, 10.1 }

For domain, equate f(x) to each value in the range and solve for x

7x - 2.7 = 14.1 ⇒ x = \frac{x14.1 + 2.7}{7} = 2.4

7x - 2.7 = 30.9 ⇒ x = \frac{30.9 + 2.7}{7} = 4.8

7x - 2.7 = 41.4 ⇒ x = \frac{41.4 + 2.7}{7} = 6.3

7x - 2.7 = 58.9 ⇒ x = \frac{58.9 + 2.7}{7} = 8.8

7x - 2.7 = 68 ⇒ x = \frac{68 + 2.7}{7} = 10.1


7 0
3 years ago
If x varies inversely as y, which statement is true?
grin007 [14]

Answer: The Inverse variation

Step-by-step explanation:

The phrase “ y varies inversely as x” or “ y is inversely proportional to x” means that as x gets bigger, y gets smaller, or vice versa. This concept is translated in two ways. yx = k for some constant k, called the constant of proportionality.

3 0
2 years ago
which of these pairs of points defines a line whith a slope of 2/3 A. (2, 6) and (3, 0) B. (6, 2) and 3, 0) C. (6, 2) and (0, 0)
JulsSmile [24]
The answer for the question is B
8 0
3 years ago
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