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Naya [18.7K]
4 years ago
15

Factor d^2-10d+10 by grouping

Mathematics
1 answer:
lesya [120]4 years ago
8 0

Answer:

(d-5-√15)(d-5+√15)

Step-by-step explanation:

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When Stephan moved from Illinois to Florida, his average monthly electric bill increased from $83 to $102. He is curious to know
kondaur [170]

Answer: The z-scores for Stephan's IL and FL electric bills. are -0.625 and 0.75 respectively.

Step-by-step explanation:

Given:  Average monthly electric bill in Illinois =  $83

Average monthly electric bill in Florida = $102

Formula of z : z=\dfrac{X-mean}{standard\ deviaton}

In Illinois, the mean monthly electric bill is $85, with a standard deviation of $3.20.

z=\dfrac{83-85}{3.20}= -0.625

In Florida, the mean monthly electric bill is $105, with a standard deviation of $4.00.

z=\dfrac{105-102}{4}=\dfrac{3}{4}=0.75

Hence, the z-scores for Stephan's IL and FL electric bills. are -0.625 and 0.75 respectively.

3 0
3 years ago
Evaluate the limit if it exists 6n^2+5/ 3n^2
Anastaziya [24]
Your answer should be 23n^2\3
4 0
3 years ago
-0.777, 1/11, square root of 49, square root of 200<br> Which ones are rational and irrational
Reil [10]
-.777 is rational because it can be put into a fraction : -777 / 1000 
1/11 is rational because it is a fraction
The square root of 49 is rational because it equals 7 which is a whole number and can be put into a fraction.
The square root of 200 is irrational because it cannot be put into a fraction.
7 0
3 years ago
Someone help me with these pls?
Eddi Din [679]

Answer:

Step-by-step explanation:

18 : 63

Both have 9 in common

2 : 7

Option C is the correct answer

Option F is the correct answer

5 0
3 years ago
Solve for A<br> 3(4A + 4) = 3A + 8A + 1 + 8
kvasek [131]

Answer:

a=−3

Step-by-step explanation:

Let's solve your equation step-by-step.

3(4a+4)=3a+8a+1+8

Step 1: Simplify both sides of the equation.

3(4a+4)=3a+8a+1+8

(3)(4a)+(3)(4)=3a+8a+1+8(Distribute)

12a+12=3a+8a+1+8

12a+12=(3a+8a)+(1+8)(Combine Like Terms)

12a+12=11a+9

12a+12=11a+9

Step 2: Subtract 11a from both sides.

12a+12−11a=11a+9−11a

a+12=9

Step 3: Subtract 12 from both sides.

a+12−12=9−12

a=−3

Answer:

a=−3

6 0
3 years ago
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