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Vesna [10]
3 years ago
9

What is the name given to a person who studies stars, planets, and other objects in the sky?​

Mathematics
2 answers:
Mariana [72]3 years ago
6 0

It is a astronomer ..please mark brainliest

Mashcka [7]3 years ago
3 0

A scientist who studies the objects in the sky, including planets, galaxies, black holes, and stars, is called an astronomer.

Hope this helps :)

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Nestor works at a garden where he pots plantsIit takes him 2 1/2 to pot 15 plants .how many plants can Nestor pot in 1 hour.
Alexeev081 [22]
15 divided by 2 1/2=6
Nestor can pot 6 plants in an hour. (I'm guessing that it said 2 1/2 hours)
4 0
2 years ago
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15. A rectangle has a length of 2x - 1 and a width of 3x + 7. Find the perimeter of this rectangle.
andrew11 [14]

Answer:

10x + 12 and 6x² + 11x - 7

Step-by-step explanation:

The perimeter (P) of a rectangle is calculated as

P = 2l + 2w ( l is length and w is width )

   = 2(2x - 1) + 2(3x + 7) ← distribute parenthesis

    = 4x - 2 + 6x + 14 ← collect like terms

     = 10x + 12

--------------------------------------------------

The area (A) of a rectangle is calculated as

A = lw

   = (2x - 1)(3x + 7) ← expand using FOIL

    = 6x² + 14x - 3x - 7 ← collect like terms

    = 6x² + 11x - 7

7 0
2 years ago
Help me plzzzzzzz guyssss
maks197457 [2]

Answer:

1. 75%

2. 20%

3. 20%

4. decrease 5.4%

Step-by-step explanation:

1. 119-68=51, 51/68=0.75

2. 30-24=6, 6/30=0.20

3. 18-15=3, 3/15=0.20

4. 762-721=41, 41/762=0.0538

5 0
2 years ago
50 POINTS. PLEASE HELP!!! NEED THIS DINE BY 4:00 PM!!!!
malfutka [58]

Hey fellow Army.

So because JKLM=PQRS, that means that all the line segments are equal.

JK=PQ=6.4

KL=QR=13

LM=RS=9

MJ=SP=18

Okay now for the graph.

It was first reflected over the y axis, and then shifted over vertically by 9 .

Hope this helps. Have a good day!

4 0
3 years ago
Read 2 more answers
Help ASAP please please 14 and 15
Yuliya22 [10]
I think 14 is B (idrk) and 15 is definitely C
8 0
3 years ago
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