Please help me with this math.

Another mathh question

spayn [35]

where is the Question!!!

can you plz give me brainliest I really need it

6 0

3 years ago

Read 2 more answers

Complete the table for the given rule.

Vesna [10]

The values of x and y are:

x y

2 1

5 2.5

7 3.5

Step-by-step explanation:

Given rule for function is:

$y = \frac{x}{2}$

As in the table,, we are given the values of y, which means we have to find x.

So,

$y = \frac{x}{2}\\x = 2y\\$

so

for y = 1

$x = 2(1) \\x = 2$

For y = 2.5

$x = 2 (2.5)\\x = 5$

For y = 3.5

$x = 2(3.5)\\x = 7$

so,

The values of x and y are:

x y

2 1

5 2.5

7 3.5

Keywords: Functions, input output

Learn more about functions at:

#LearnwithBrainly

6 0

3 years ago

100 Points and Brainliest.

hichkok12 [17]

Answer:

See below ↓

Step-by-step explanation:

We have a graph given to us.

⇒ Take the points to form an equation!

The points

(4, 6)
(-2, 1)

Making an equation

Find the slope
m = 1 - 6 / -2 - 4
m = -5 / -6
m = 5/6

Take one of the two points and substitute in the equation :

⇒ y - y₁ = m (x - x₁)
⇒ y - 6 = 5/6 (x - 4)
⇒ y - 6 = 5x/6 - 10/3
⇒ y = 5x/6 + 8/3
⇒ or 6y = 5x + 16

3 0

2 years ago

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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

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.

So, 95% confidence interval for the population mean, $\mu$ is ;

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

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

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

= [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

Help me on this please

gtnhenbr [62]

More than happy to help!

6/3= 2

When you divide powers, you subtract them.

7-4= 3

The answer is:

2*10^3

I hope this helped you!

Brainliest answer is always appreciated!

7 0

3 years ago

Read 2 more answers

Please help me with this math.​

Please help me with this math.