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mart [117]
3 years ago
12

Which expressions are equivalent to z+(z+6)

Mathematics
2 answers:
mr_godi [17]3 years ago
8 0
Ddddddddddddddddddddddddddd
Nezavi [6.7K]3 years ago
4 0

Answer:

Step-by-step explanation:

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What is the boundary point for this following eqaution? <br> 3x + 2 ≥ x − 6
Citrus2011 [14]
 3x - 2 ≥ x - 6
<u>- x        - x      </u>
 2x - 2 ≥ -6
 <u>    + 2   + 2</u>
      <u>2x</u> ≥ <u>-4</u>
       2      2
        x ≥ -2
7 0
3 years ago
Eunice wanted to save up for a mountain bike that costs £250. She baby-sits each week for 6 hours for £2.75 an hour, and does a
choli [55]

Answer:

Approximately 2 weeks

Step-by-step explanation:

Given data

Cost of bike=  £250

<em>Assuming she works for 6 days</em>

1.Babysitting

6*2.75=£16.5 per day

for 6 days

=16.5*6

=£99

2. Saturday Job

=£27.50

Total earnings for the week

=£27.50+£99

=£126.5 weekly

Hence it will take her

=250/126.5

=1.97 week

Approximately 2 weeks to save up the amount

3 0
3 years ago
Help me PLZZZZZZ I will mark BRAINLEIST
vfiekz [6]

Answer:

10.8

Step-by-step explanation:

becaue you need to mutiply all sides

4 0
3 years ago
Write an algebraic expression or equation 5 times the sum of three and a number
maksim [4K]

Answer: 3+5x

Step-by-step explanation:

Simply and Think Hard

6 0
4 years ago
In a survey of 1,532 former UF students, 84% said they were still in love with Tim Tebow. The survey's sampling error was 2%. Us
nalin [4]

Answer:

confidence interval for the proportion of all former UF students who are still in love with Tim Tebow.

(0.79 , 0.89)

Step-by-step explanation:

step 1:-

Given sample survey former UF students n = 1532

84% said they were still in love with Tim Tebow

p = 0.84

The survey sampling error

                                                 = \sqrt{\frac{p(1-p)}{n} }

Given standard error of proportion = 2% =0.02

<u>Step 2</u>:-

The 99% of z- interval is 2.57

The 99% of confidence intervals are

p ± zₐ S.E     (since sampling error of proportion = \sqrt{\frac{pq}{n} }

(0.84 - 2.57X0.02 , 0.84 + 2.57X0.02)

on simplification , we get

(0.84 - 0.0514 , 0.84 + 0.0514)

(0.79 , 0.89)

<u>conclusion</u>:-

confidence interval for the proportion of all former UF students who are still in love with Tim Tebow.

(0.79 , 0.89)

4 0
3 years ago
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