2 years ago

Help me pls ?? 1. Suppose there is a raffle with numbered tickets 1 - 150. One ticket is randomly

Mathematics

1 answer:

padilas [110]2 years ago

3 0

A = 50% / equally likely
B = less likely / unlikely
C =less likely
D = Impossible

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What is the distance between 16 and -25

murzikaleks [220]

the distance between 16 and -25 is 41

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2 years ago

Find the interquartile range for each set of data. Set 1: 21, 5, 14, 10, 8, 17, 2

tensa zangetsu [6.8K]

Answer:

12.

Step-by-step explanation:

First arrange in ascending order:

2 5 8 10 14 17 21

The median is 10.

the lower quartile is the middle number of 2 5 and 8 which is 5.

Similarly the upper quartile is 17.

IQR = 17 - 5 = 12.

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2 years ago

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Find the x-intercept(s) of y = 2x2 - 3x - 5. A) -5 B) 2 1/2, -1 C) 3, -5 D) 5, -1

Alexus [3.1K]

Answer:

$\large\boxed{B)\ 2\frac{1}{2},\ -1}$

Step-by-step explanation:

x-intercepts are for y = 0.

We have the equation:

$y=2x^2-3x-5$

Therefore

$2x^2-3x-5=0\\\\2x^2+2x-5x-5=0\\\\2x(x+1)-5(x+1)=0\\\\(x+1)(2x-5)+0\iff x+1=0\ \vee\ 2x-5=0\\\\x+1=0\qquad\text{subtract 1 from both sides}\\\boxed{x=-1}\\\\2x-5=0\qquad\text{add 5 to both sides}\\2x=5\qquad\text{divide both sides by 2}\\\boxed{x=2\frac{1}{2}}$