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Sedbober [7]
2 years ago
12

Please help, will give brainliest!

Mathematics
1 answer:
Ipatiy [6.2K]2 years ago
3 0

Answer:

4 & 1

Step-by-step explanation:

(2x+4)(-2x+1)

It's 4 and 1 because those are the points where the graph touches the x axis.

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How can I solve this ?
Nostrana [21]
Multiply 2,500 by 1.50 which is B.
3 0
3 years ago
Read 2 more answers
A random sample of 85 group leaders, supervisors, and similar personnel revealed that a person spent an average 6.5 years on the
strojnjashka [21]

Answer:

<em>95% of confidence interval for the Population</em>

<em>( 6.1386 , 6.8614)</em>

Step-by-step explanation:

<u><em>Step( i ):-</em></u>

<em>Given random sample size 'n' =85</em>

<em>Mean of the sample size x⁻ = 6.5 years</em>

<em>Standard deviation of Population = 1.7 years</em>

<em>Level of significance = 0.95 or 0.05</em>

<u><em>Step(ii):-</em></u>

<em>95% of confidence interval for the Population is determined by</em>

<em></em>(x^{-} - Z_{0.05} \frac{S.D}{\sqrt{n} } , x^{-} + Z_{0.05} \frac{S.D}{\sqrt{n} })<em></em>

<em></em>(6.5 - 1.96\frac{1.7}{\sqrt{85} } , 6.5 + 1.96 \frac{1.7}{\sqrt{85} })<em></em>

<em>( 6.5 - 0.3614 , 6.5 + 0.3614 )</em>

<em>( 6.1386 , 6.8614)</em>

<u><em>Conclusion</em></u><em>:-</em>

<em>95% of confidence interval for the Population</em>

<em>( 6.1386 , 6.8614)</em>

8 0
3 years ago
ILL GIVE BRAINLIEST. plsss help asap
balu736 [363]

Step-by-step explanation: It should be the second answer.

8 0
3 years ago
If three dozen cookies cost $9, what is the cost per cookie?
e-lub [12.9K]
 i think  
25 per cents

5 0
3 years ago
Read 2 more answers
$2500 in saving account earing 3,5 perccent interest. what was the the total interest earnedin 6 years
Dvinal [7]

Answer:

I=\$525

Step-by-step explanation:

we know that

The simple interest formula is equal to

I=P(rt)

where

I is the Final Interest Value

P is the Principal amount of money to be invested

r is the rate of interest  

t is Number of Time Periods

in this problem we have

t=6\ years\\ P=\$2,500\\r=3.5\%=3.5/100=0.035

substitute in the formula above

I=\$2,500(0.035*6)

I=\$525

8 0
3 years ago
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