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BaLLatris [955]

2 years ago

12

What is 2x+5=17 need step by step explanation

2 answers:

Brums [2.3K]2 years ago

7 0

Answer: $x=6$

Step-by-step explanation:

$2x+5=17$

$-5=-5$

_________

$2x=12$

$\frac{2x}{2}= \frac{12}{2}$

$x=6$

irina1246 [14]2 years ago

6 0

Answer:

X=6

Step-by-step explanation:

Subtract 5 from 5 to get 2x=17

Subtract 5 from 17 aswell to get 2x=12

Devide both sides by 2 to get x=6

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Number of Text Messages a Day A random sample of n = 755 US cell phone users age 18 and older in May 2011 found that the average

Alexeev081 [22]

Answer:

The 95% confidence interval is (29.54 - 53.46}

Step-by-step explanation:

given data:

$\hat X = 41.5$

Se = 6.1

n = 755

a) best estimate $\hat x = 41.5$

b) at 95% confidence interval

$\alpha = 1- 0.95 = 0.05$

$\alpha /2 = 0.025$

$z_{\alpha/2} = z_{0.025} = 1.96$

at 95% confidence interval for [/tex]\mu[/tex]

$\hat x \pm z_{\alpha /2} \times Se$

$41.5 \pm 1.96\times 6.1$

$41.5 \pm 11.96$

The 95% confidence interval is (29.54 - 53.46}

7 0

3 years ago

a practice field is 250 ft long the game is 40% longer than the practice field of how long is the game

Diano4ka-milaya [45]

Answer:

350

Step-by-step explanation:

40% of 250 is 100 (10% of 250 is 25 and 25 times 4 is 100)

250+100 is 350

8 0

2 years ago

A number has the digit 3 in the once place and the digit 4 in the tens place.which of these is another way to write this number?

Anarel [89]

The best way will be 40+3

3 0

3 years ago

Read 2 more answers

2. Use (<, >, =) to compare 23 and 34.

lara31 [8.8K]

Answer:

Step--step explanation:

2/3 = 0.67

3/4= 0.75

So 2/3 < 3/4

8 0

2 years ago

Read 2 more answers

2(x+3)^(2)+8=0 Solve.

olga2289 [7]

Answer:

2i-3

Step-by-step explanation:

2(x+3)²=-8

(x+3)²=-4

x+3=2i

x=2i-3

7 0

2 years ago