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2 years ago

Question 2 What is the y-intercept in the equation y = 4x - 3? 4 0 3

Mathematics

1 answer:

Marysya12 [62]2 years ago

7 0

I believe it’s 3 hope this helps

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Find the Area And Perimeter

ahrayia [7]

Answer:

Ste-by-step explanation:bf=7x-10 bc=4x-29

3 0

3 years ago

Read 2 more answers

The ratio of Ali's mass to John's mass is 6:5. The ratio of John's muss

djverab [1.8K]

Step-by-step explanation:

The ratio of Ali mass to Williams mass is

6 : 3

= 2 : 1

Option 2 is the correct answer

5 0

2 years ago

We wish to give a 90% confidence interval for the mean value of a normally distributed random variable. We obtain a simple rando

coldgirl [10]

Answer: $(9.27025,\ 11.12975)$

Step-by-step explanation:

Given : Sample size : n= 9

Degree of freedom = df =n-1 =8

Sample mean : $\overline{x}=10.2$

sample standard deviation : $s= 1.5$

Significance level ; $\alpha= 1-0.90=0.10$

Since population standard deviation is not given , so we use t- test.

Using t-distribution table , we have

Critical value = $t_{\alpha/2, df}=t_{0.05 , 8}=1.8595$

Confidence interval for the population mean :

$\overline{x}\pm t_{\alpha/2, df}\dfrac{s}{\sqrt{n}}$

90% confidence interval for the mean value will be :

$10.2\pm (1.8595)\dfrac{1.5}{\sqrt{9}}$

$10.2\pm (1.8595)\dfrac{1.5}{3}$

$10.2\pm (1.8595)(0.5)$

$10.2\pm (0.92975)$

$(10.2-0.92975,\ 10.2+0.92975)$

$(9.27025,\ 11.12975)$

Hence, the 90% confidence interval for the mean value= $(9.27025,\ 11.12975)$

6 0

2 years ago

Please answer correctly ,50 PoiNTs

Mariana [72]

The average temperature increased from day 5 through day 7.

answer choice b is the correct answer.

if you look at the chart you see how the temp. increases throughout said days. :)

6 0

2 years ago

Read 2 more answers

If M is between S and T, SM = 9x - 8,<br> MT = 2x + 3, and ST = 72. Find x.

kolezko [41]

Answer:

Step-by-step explanation:

Since, M is between S and T.

Therefore, SM + MT = ST

9x- 8 + 2x + 3 = 72

11x - 5 = 72

11x = 72 + 5

11x = 77

x = 77/11

x = 7

3 0

2 years ago