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bonufazy [111]
3 years ago
7

the seafloor spreads at a rate of aproximatly 10 cm per year. if you were to collect data on the spread of the seafloor each wee

k, which unit whoul you use to record your data. Explain?
Mathematics
1 answer:
Natali [406]3 years ago
5 0

Answer:

2,000 micrometers

Step-by-step explanation:

Well 10 cm in 50 or so weeks is 0.2 cm per week so you could use mm  

Then the measuremet would be about 2 mm per week.  

If the measurement is extremely accurate you could consider using micrometres.  

There are 1000 micrmetres in 1mm so in 1 week 2,000 micrometres

Hope this helps! <3 Jacoby


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A regular pentagon with a perimeter of 18 centimeters is dilated by a scale factor of 3 2 32 to create a new pentagon. What is t
Svetlanka [38]

Answer:

The perimeter of the new pentagon is 27\ cm

Step-by-step explanation:

we know that

If two figures are similar, then the ratio of its perimeters is equal to the scale factor

so

To find the perimeter of the new pentagon, multiply the perimeter of the original pentagon by the scale factor

Let

z ----> the scale factor

z=3/2=1.5

The perimeter of the new pentagon is equal to

(18)*1.5=27\ cm

7 0
3 years ago
Answers please??? (If you can.)
mojhsa [17]
For number 1 ↓
A) Cards increase the score by 8 points  → 
<span>5 + 3; 4 + 4</span>
B)Cards decreased the score by 9 points→ <span>-29 + 20; -2 +-7</span>
C) Removing cards that increase the score by 10 points → <span>-4 + -6 & -5 + -5 </span>
D.  Positive cards that decrease the score by 18 points. → Well since their aren't "positive card" that'll decrease the score. It might be negative cards which will decrease the scores

 For number 2 ↓ 
Number of Cards → 5 |  -3  | -4 |  3|

New cards: 5 | -12 | 4 | 3|

5 + -12 + -4 + 3 = -8 

For number 3.↓
12: |-6 | -6| 

8:   |4 | 4
|

So, the numbers of "cards" hand would: -6 | -6 | 2 | 2| 2| 2 | ;  4| 4
3 0
3 years ago
Hello! I'm in the 7th grade and I'm having trouble with math this year... Will someone please help me with this? :)
IrinaVladis [17]

Answer: 66

Step-by-step explanation: 30 x 2 = 60... 30 / 5 = 6... 60 + 6 = 66 :D

i'm in seventh too hehe

4 0
2 years ago
mrs. sing bought a pound of green beans for $1.80. How much will Msr. Tennison pay for 3 1/2 pounds of green beans?​
gavmur [86]

Answer:

6.30$

Step-by-step explanation:

1.80x3=5.40

1.80/2=0.90

5.40+0.90=6.30

hope it helps!

4 0
3 years ago
F(x) = x + 2 g(x) = x – 4 (f g)(x) =
Kitty [74]
(x+2)*(x-4)
x^2-4x+2x-8
x^2-2x-8
8 0
3 years ago
Read 2 more answers
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