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Ahat [919]
3 years ago
6

Which notation is expressed in interval notation x> -2?​

Mathematics
1 answer:
vfiekz [6]3 years ago
5 0

Answer:

( - 2 \:  \infty )

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John has decided to prepare an old field for his son's new horse. the length of the field is 10 meters less than 4 times its wid
tatuchka [14]

Answer: The total money invested in the field will be $1,623.80

Step-by-step explanation:

step 1

Find the dimensions of the field

Let

x -----> the length of the field

y -----> the width of the field

p=2(x+y)

p(4.80)=1,584

p=330m

we know that

The perimeter of the field is equal to

so

330=2(x+y)----> equation A

x=4y-10 ------> equation B

substitute equation B in equation A and solve for y

330=2(4y-10+y)

165=(5y-10)

5y=165+10

y+35

Find the value of x

x=4(35)-10+130

therefore

The length of the field is 130 meters and the width of the field is 35 meters

step 2

Find the area of the field

The area of the field is

A=xy

substitute

A=(130)(35)=4,550m2

step 3

Find the number of bags of seed

Divide the area by 460

4,550/460=9.89 bags

Round up to the nearest whole number

9.89 bags=10 bags

step 4

Find the cost of the seed

(10 )(3.98)=$19.8

step 5

Find the total money invested in the field

1,584+$39.8=$1,623.80

7 0
2 years ago
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A copy machine makes 44
andrew-mc [135]
44 per minute. 44 x 5 minutes = 220 copies. But you have have 30 seconds left, 30 is half a minute so you also split what the machine does in half which is 22. 220 +22= 242.
242 copies is my answer.
6 0
3 years ago
Please help ASAP!! Algebra (equation in picture)
BabaBlast [244]
[-8,8] because both points are closed points.
6 0
3 years ago
Solve 5r2 – 12 = 68. {±4} {±5} {±3} {±6}
Airida [17]

Add 12 to both sides:

5r^2 = 80

Divide by 5:

r^2 = 16

Square root both sides:

r = +/- 4

The answer is {+/- 4}.

3 0
3 years ago
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What is .8% of fifty in whole numbers
zvonat [6]

Answer:

0.4

All you have to do is look up calculator and type 50 times .8%

4 0
3 years ago
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