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photoshop1234 [79]

3 years ago

9

Solution.

1 answer:

asambeis [7]3 years ago

8 0

Answer:

The solution to the system is (-2 1/3, -2 2/3)

Step-by-step explanation:

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Find the 50th term of 15, 9, 3, -3,...

MA_775_DIABLO [31]

Answer:-32 I THINK IM NOT 100 PERCENT POSITIVE

Step-by-step explanation:

8 0

3 years ago

Write a linear function f withe the values f (10) = 5 and f (2) = -3

MakcuM [25]

Answer:

(a) $f(x)=\frac{1}{2}x$

(b) $f(x)=-\frac{3}{2}x$

Step-by-step explanation:

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3 years ago

A driving exam consists of 29 multiple-choice questions. Each of the 29 answers is either right or wrong. Suppose the probabili

Sholpan [36]

Answer and explanation:

Given : A driving exam consists of 29 multiple-choice questions. Each of the 29 answers is either right or wrong. Suppose the probability that a student makes fewer than 6 mistakes on the exam is 0.26 and that the probability that a student makes from 6 to 20 (inclusive) mistakes is 0.53.

Let X be the number of mistake

$P(X$

$P(6\leq X\leq 20)=0.53$

To find : The probability of each of the following outcomes.

a) A student makes more than 20 mistakes

i.e. $P(X>20)$

$P(X>20)=1-P(X\leq 20)$

$P(X>20)=1-(P(X\leq 5)+P(6\leq X\leq 20))$

$P(X>20)=1-(0.26+0.53)$

$P(X>20)=1-(0.79)$

$P(X>20)=0.21$

b. A student makes 6 or more mistakes

i.e. $P(X\geq 6)=1-P(X$

$P(X\geq 6)=1-0.26$

$P(X\geq 6)=0.74$

c. A student makes at most 20 mistakes

i.e. $P(X\leq 20)=1-P(X>20)$

Using 'a' part $P(X>20)=0.21$

$P(X\leq 20)=1-0.21$

$P(X\leq 20)=0.79$

d. Which two of these three events are complementary?

The complement of an event happening is the exact opposite: the probability of it not happening.

According to definition,

Option a and c are complementary events.

6 0

3 years ago

Read 2 more answers

A person in a certain family eats 684.6 lb of fruit and vegetables in a year. What is the average consumption in one day ( use 1

sasho [114]

Every day that person consumes <span>1.87561643836 pounds of fruit and vegetables in a day.</span>

6 0

3 years ago

What is the slope of the line through (-1, -7) and (3,9)?

Radda [10]

Answer:

<u>9+7</u>

3+1

=4

Step-by-step explanation:

5 0

2 years ago