3 years ago

Help me on this problems

Mathematics

1 answer:

elena55 [62]3 years ago

6 0

The answer for your problem (1) is 7.41

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Help please due now!

MissTica

Answer:

Step-by-step explanation:

3(2)-2(1-2) / 3-2

6-2(-1) / 1

6 + 2 / 1

8 / 1

= 8

6 0

3 years ago

50 POINTS PLS HELP

egoroff_w [7]

Answer:

Step-by-step explanation:

find value at 12 =12

find value at 10 = 6

so it changes + 6 for a change from 10 to 12

6/2 = 3

4 0

2 years ago

Read 2 more answers

An Investment earning Interest at the rate of 10%, compounded continuously, will double in tyears. Find t

garri49 [273]

I uploaded the answer to a file hosting. Here's link:

tinyurl.com/wtjfavyw

6 0

3 years ago

(CO 4) In a sample of 8 high school students, they spent an average of 24.8 hours each week doing sports with a sample standard

AveGali [126]

Answer:

(22.12, 27.48)

Step-by-step explanation:

Given : Significance level : $\alpha: 1-0.95=0.05$

Sample size : n= 8 , which is a small sample (n<30), so we use t-test.

Critical values using t-distribution: $t_{n-1,\alpha/2}=t_{7,0.025}=2.365$

Sample mean : $\overline{x}=24.8\text{ hours}$

Standard deviation : $\sigma=3.2\text{ hours}$

The confidence interval for population means is given by :-

$\overline{x}\pm t_{n-1,\alpha/2}\dfrac{\sigma}{\sqrt{n}}$

i.e. $24.8\pm(2.365)\dfrac{3.2}{\sqrt{8}}$

$24.8\pm2.67569206001\\\\\approx24.8\pm2.68\\\\=(24.8-2.68, 24.8+2.68)=(22.12, 27.48)$

Hence, the 95% confidence interval, assuming the times are normally distributed.= (22.12, 27.48)

6 0

3 years ago

A baseball coach order hats for his team. Each hat cost $10. The shipping charger is $6. The total cost of the order must be les

NeTakaya

The answer should be:

10h + 6 < 125

3 0

3 years ago

Read 2 more answers