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OLga [1]
2 years ago
10

Please Help!! Whoever helps and gets it correct gets Brainliest and 5 star rating!!

Mathematics
1 answer:
grandymaker [24]2 years ago
4 0

Answer:

the reasoning states that "all the numbers begin with a 7 or an 8"

however this is not accurate as they can be in different placements

which can make a big difference in the total estimate.

for example:

the number could've been an 8, or an 80

they both begin with an 8

however have totally different values and could have messed up the total estimated number.

hope this helps :D

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What is the answer to 1/4(-12plus4/3)
Genrish500 [490]

Answer:

Step-by-step explanation:1/4(-12+4/3)

-12+4/3=-36+4/3

1/4*-32/3=-8/3

-2.666

4 0
3 years ago
1. If a - b = 4 and a + b = 12, what is the<br> value of a?
Marta_Voda [28]
A=8

Explanation: a+b=12 a-b=4
^^^^^^^ ^^^^^^
8+4=12 8-4=4
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8 0
3 years ago
Please help i need to find the constant of proportionality
abruzzese [7]

Answer:

4

Step-by-step explanation:

y = 4*x

y = 4*1.5 = 6

y = 4*2.25 = 9

y = 4* 3.25 = 13

3 0
2 years ago
Help asaaaap pls !!!!! ​
tatyana61 [14]

Answer:

A.

Step-by-step explanation:

for (10,5)

5 - 5 = 2(10 - 10) = 0

for (4,-7)

-7 - 5 = 2(4 - 10) = -12

7 0
3 years ago
Simplify 2x2 - y for x = 3 and y = -2.<br><br> 10<br> 16<br> 20<br> 14
RoseWind [281]

Answer:

20

Step-by-step explanation:

Given

2x² - y ← substitute x = 3 and y = - 2 into the expression

= 2(3)² - (- 2)

= 2(9) + 2

= 18 + 2

= 20

6 0
3 years ago
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