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dolphi86 [110]
3 years ago
9

What are the roots of the polynomial equation? x2+x−72=0

Mathematics
1 answer:
Alika [10]3 years ago
8 0

Answer:

x(x-1)=72 x=9

Step-by-step explanation:

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Noel has rowing lessons every 5 days and guitar lessons every 6 days. If he had both lessons on the last day of the previous mon
bixtya [17]

Answer:

Since every 30 days  he  wil have both lessons on the same day , and  he already  had both lessons on the last day of the previous month, that means that the day 30  the current month   he  wil have both lessons on the same day (It may be the last day if the month has 30 days or it may not be the last day if the month has 31 days)

Step-by-step explanation:

Lets find the least common factor of 5 and 6

Multiples of 5

5  10  15  20  35  30  35  40......

Multiples of 6

6  12  18  24  30 36  

LCF of 5 and 6 = 30

Every 30 days  he  wil have both lessons on the same day

3 0
3 years ago
For the data set { -4 , 8 , 4 , 0 , 7 , -2 , -5 , 6 }, the range is
statuscvo [17]

The interquartile range is 9.5.

Hope this helps!!!!!!

Please give me brainliest!!!!!!!!

3 0
4 years ago
Please Help!!!!!!! I need it!
sergiy2304 [10]

Answer:

Rotation - Twists the shape

Reflection - Flips the shape

Translation - Slides a shape

Dilation - Enlarge or reduces a shape

Congruent - Same shape same size

Rigid Motion - type of transformation that  creates congruent figures

Hope this helped. I apologize if any of them are wrong..

5 0
3 years ago
Read 2 more answers
13. 2 – (–8) + (–3) = <br><br> A. 1<br> B. 12<br> C. 7<br> D. 14
baherus [9]

ANSWER

C. 7

EXPLANATION

We want to evaluate

2 - (  - 8) + ( - 3)

We use the order of operations PEDMAS.

Dealing with the parenthesis first,we have

2  -  - 8+- 3

Note that:

-    -  =  +

and

-  +  =  -

Our expression now becomes:

2 + 8 - 3

Next, we add to get:

10 - 3

We finally subtract to get,

7

The correct answer is C

7 0
3 years ago
Read 2 more answers
Dom has enough tins of paint to cover a total surface of 280m.
Inessa [10]
So he has to paint 255 m from the 280 m of paint he has
First divide 255/280 to give you a decimal
You should get .9107
Since this is in decimal form (out of 1) you want to get percentage which is out of 100 you multiply by 100
So .9107 times 100
This gives you the percentage which is
91.07%
Now it says round to 1 decimal so it would be
91.1%
3 0
3 years ago
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