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3 years ago

Simplify -4 (y +1) -2

Mathematics

1 answer:

Alik [6]3 years ago

7 0

Answer:

-4y -6

Step-by-step explanation:

use m a t h w a y it helps alot

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A professor at a university wants to estimate the average number of hours of sleep the students get during exam week. The profes

balandron [24]

Answer:

The sample size is $n = 2$

Step-by-step explanation:

From the question we are told that

The margin of error is E =4.266

The standard deviation is $\sigma = 2.539$

From the question we are told the confidence level is 99% , hence the level of significance is

$\alpha = (100 - 99 ) \%$

=> $\alpha = 0.01$

Generally from the normal distribution table the critical value of $\frac{\alpha }{2}$ is

$Z_{\frac{\alpha }{2} } = 2.58$

Generally the sample size is mathematically represented as

$n = [\frac{Z_{\frac{\alpha }{2} } * \sigma }{E} ] ^2$

=> $n = [\frac{2.58 * 2.539 }{4.266} ] ^2$

=> $n = 2$

6 0

3 years ago

Graph the image mop for the translation

valentinak56 [21]

Answer:

the correct points would be one unit to the right, thusly, (2,4) (4,-1) (-2,1)

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Write an equation to find the amount of interest $450,000 earns in 1 year at a simple interest rate of 3.5%.

telo118 [61]

Answer:

The required equation for the amount of Simple Internet = $\frac{450,000 \times 1 \times 3.5}{100}$

Step-by-step explanation:

Here , Principal amount = $450,000

Time = 1 year

Rate of Interest = 3.5%

Now,SIMPLE INTEREST = $\frac{P \times R \times T}{100}$

So, here SI = $\frac{450,000 \times 1 \times 3.5}{100}$

Hence, the required equation for the amount of Simple Internet = $\frac{450,000 \times 1 \times 3.5}{100}$

7 0

4 years ago

Read 2 more answers

I will literally give you my life if you. help me with these integer questions-

Sphinxa [80]

Answer:

10. 23

11. -17

12. 0

13. -4

14. -6

15. 4

Explanation:

10. 8+15= 23

11. -8-9= -17

12. 8-8= 0

13. -8+4= -4 (same as 4-8)

14. -10+4= -6 (same as 4-10)

15. 12-8= 4

8 0

3 years ago

Read 2 more answers

From the start of a trail to the bird lookout point is 3 7/8 mile. From the bird lookout point to the end of the trail is anothe

Juli2301 [7.4K]

Answer:

Distance of the trail from the start to the end is $6\frac{17}{24}$ miles

Step-by-step explanation:

Distance from the start of a trail to the bird lookout point= $3\frac{7}{8}$ miles

Distance from the bird lookout point to the end of the trail = $2\frac{5}{6}$ miles

We want to find the difference of the trail from the start to the end, that is, how far is the starting point from the end point.

The distance between the start and end points

$=3\frac{7}{8}+2\frac{5}{6}\\=\frac{31}{8} +\frac{17}{6}$

$=\frac{161}{24} =6\frac{17}{24}$ miles

3 0

3 years ago