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zubka84 [21]
3 years ago
14

What is 1+1-1+1-1-1+1 i need to know

Mathematics
1 answer:
butalik [34]3 years ago
8 0

Answer:

1

Step-by-step explanation:

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Robert can mow a 600 square lawn in 1 hour and 20 minutes. How many lawns in the same size's can he mow in 8 hours?​
adell [148]
First off change everything to minutes. The 600 is irrelevant in this problem. He can mow this size in 80 minutes. 8 hours is 8x60= 480. 480/80 is 6 and therefore he can mow 6 lawns in this size in time of 8 hours
4 0
2 years ago
What is the volume of the figure ?
vivado [14]

Answer:

44,602.2 (c)

Step-by-step explanation:

The volume of a sphere is found by using the equation:

\frac{4}{3} \pi r^{3}

The radius is shown to be 22cm just plug it in and see that the equation produces the value: 44,602.2

3 0
3 years ago
Read 2 more answers
Martin fills an aquarium 4/5 full of water. Fill in each box with a number from the list to generate equivalent fractions for 4/
Pavel [41]

Answer:

8/10

12/15

16/20

Step-by-step explanation:


5 0
4 years ago
Which year is the best prediction for when 1206 people will attend graduate school?
Makovka662 [10]

Answer:

D year 15

Step-by-step explanation:

Given:

y= 8x^2-40x+6

year is the best prediction for when 1206

Finding value of x for y=1206

8x^2-40x+6= 1206

8x^2-40x+6-1206=0

8x^2-40x-1200=0

Solving the above by quadratic formula:

x= \frac{-b\sqrt{b^{2}-4ac } }{2a}

 = \frac{40\sqrt{40^{2}-4(8)(-1200) } }{2(8)}

x= 15 and x= -10

As year can not be negative, hence correct answer is

D: year 15!

7 0
4 years ago
HEEEEEELP
ivann1987 [24]
3-5=-2. 2×4=8. 8×-2=-16 the answer is -16
8 0
3 years ago
Read 2 more answers
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