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3 years ago

6

(3m2 + 5m - 2) + (-2m +18)?

2 answers:

Alex3 years ago

7 0

(3m2+5m-2)+(-2m+18) is 9m+16

sergeinik [125]3 years ago

3 0

Answer:

$3m^{2}+3m+16$

Step-by-step explanation:

Start with:

$(3m^{2} +5m-2)+(-2m+18)\\$

Combine like terms:

$3m^{2}+3m+16$

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to mail a cardboard box, you measure its size and mass. It is 55cm long , 25cm wide and 20 cm high. The mass of the box is 4kg.

ch4aika [34]

Answer:

Density is usually expressed as grams per cubic centimeter.

Volume = 55 * 25 * 20 = 27,500 cc

Density = Mass / Volume = 4,000 grams / 27,500 cc

= 0.1454545455 grams/cc

which is an extremely low density

Step-by-step explanation:

8 0

3 years ago

PLS HELP ASAP, THANK YOU

n200080 [17]

Q1: 22.5 meters cubed

7 0

2 years ago

Read 2 more answers

13 - 8m = 21<br> por favor ayuda

Ulleksa [173]

Si estás tratando a encontrar M este es
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6 0

3 years ago

Find the area of the figure. Use 3.14 for pie . Round your answer to the nearest tenth.

gizmo_the_mogwai [7]

Answer:

538.3

Step-by-step explanation:

First of all find the area of the rectangle

L*W

15*30

450

Now find the area of semi circle

1/2 $\pi r^{2}$

Since radius is half a diameter divided 15 by 2=7.5

1/2 $\pi 7.5^{2}$ 7.5 times 7.5= 56.25

1/2*3.14*56.25

56 times 3.14 is 176.625 now multiply 176.625 by 1/2

Answer is 88.3125

Now add 450 to 88.3125

Final answer: 538.3125

7 0

3 years ago

An item is regularly priced at

jekas [21]

85% = 0.85

1-0.85 = 0.15

80 x 0.15 = 12

the price now is $12

7 0

3 years ago