All categories

3 years ago

HELPPPPP!!!! 20 POINTS GIVEN!

Mathematics

1 answer:

babunello [35]3 years ago

3 0

Answer:

Answer

4.0/5

JannetPalos

While representing 3 - 4 on the number line, from the starting point 0, we need to show an arrow to three numbers on the right.

Since - 4 is the additive inverse of 4, from the point where the first arrow pointed, we should go 4 points to the left.

Hence, the number line which shows an arrow from 0 to 3, and then from 3 to negative 1 is the correct one.

Step-by-step explanation:

Hope that helps!!

You might be interested in

GUYS HELP NOW PLS WHAT IS THE PROBABILITY NOTATION FOR THE PROBABILITY OF CHOOSING A GREEN MARBLE HELPPPP PLS

guapka [62]

The probability notation for the probability of choosing a green marble is P(G)

<h3>What is probability?</h3>

This is simply defined as the extent to which something is likely to occur.

The probability that an event will occur is given as the ratio of the number of favorable outcomes to the total number of outcomes.

<h3>How to determine the probability notation</h3>

Probability notation is a symbol used in indicating the probability of an occurring event. Since our focus is on the probability of obtaining a green marble, then the probability notation will be P(G). This is illustrated below:

Event of green marble = nG
Total event = nT
Probability of green marble = P(G)

P(G) = nG / nT

Learn more about probability:

brainly.com/question/22159331

#SPJ1

7 0

2 years ago

Sam rented a bike one day in the summer. He paid $68 an hour and a rental fee of $85.00 If Sam paid $ 357.00 for the day, how ma

Sliva [168]

Answer:

Step-by-step explanation:

First of all, subtract the rental fee. 357 - 85 = 272. Now, simply divide 272 by 68 to find the number of hours. 272 / 68 = 4.

3 0

2 years ago

Read 2 more answers

In 1998, as an advertising campaign, the Nabisco Company announced a "1000 Chips Challenge," claiming that every 18-ounce bag of

Phoenix [80]

Answer:

A 95% confidence interval for the mean number of chips in a bag of Chips Ahoy Cookies is [1187.96, 1288.44].

Step-by-step explanation:

We are given that statistics students at the Air Force Academy (no kidding) purchased some randomly selected bags of cookies and counted the chocolate chips.

Some of their data are given below; 1219, 1214, 1087, 1200, 1419, 1121, 1325, 1345, 1244, 1258, 1356, 1132, 1191, 1270, 1295, 1135.

Firstly, the pivotal quantity for finding the confidence interval for the population mean is given by;

P.Q. = $\frac{\bar X-\mu}{\frac{s}{\sqrt{n} } }$ ~ $t_n_-_1$

where, $\bar X$ = sample mean number of chocolate chips = $\frac{\sum X}{n}$ = 1238.2

s = sample standard deviation = $\sqrt{\frac{\sum (X-\bar X)^{2} }{n-1} }$ = 94.3

n = sample of car drivers = 16

$\mu$ = population mean number of chips in a bag

<em>Here for constructing a 95% confidence interval we have used a One-sample t-test statistics because we don't know about population standard deviation.</em>

<u>So, 95% confidence interval for the population mean, </u> $\mu$ <u> is ;</u>

P(-2.131 < $t_1_5$ < 2.131) = 0.95 {As the critical value of t at 15 degrees of

freedom are -2.131 & 2.131 with P = 2.5%}

P(-2.131 < $\frac{\bar X-\mu}{\frac{s}{\sqrt{n} } }$ < 2.131) = 0.95

P( $-2.131 \times {\frac{s}{\sqrt{n} } }$ < ${\bar X-\mu}$ < $2.131 \times {\frac{s}{\sqrt{n} } }$ ) = 0.95

P( $\bar X-2.131 \times {\frac{s}{\sqrt{n} } }$ < $\mu$ < $\bar X+2.131 \times {\frac{s}{\sqrt{n} } }$ ) = 0.95

<u>95% confidence interval for</u> $\mu$ = [ $\bar X-2.131 \times {\frac{s}{\sqrt{n} } }$ , $\bar X+2.131 \times {\frac{s}{\sqrt{n} } }$ ]

= [ $1238.2-2.131 \times {\frac{94.3}{\sqrt{16} } }$ , $1238.2+2.131 \times {\frac{94.3}{\sqrt{16} } }$ ]

= [1187.96, 1288.44]

Therefore, a 95% confidence interval for the mean number of chips in a bag of Chips Ahoy Cookies is [1187.96, 1288.44].

7 0

3 years ago

If a base is negative, how will you know whether the answer is positive or negative before evaluating it?

jeka94

You can determine if the answer is positive or negative because the even numbers are positive and the odd numbers are negative

5 0

3 years ago

Read 2 more answers

What is the best approximation for the measure of angle ABC?

SVETLANKA909090 [29]

Cos(x) = 10.5 / 20
cos(x) = 0.525

answer
C.
x = 58.3"

3 0

3 years ago