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Andrej [43]
3 years ago
8

8. Simplify this expression. (3)10(3)–9

Mathematics
2 answers:
STALIN [3.7K]3 years ago
4 0
Answer would be 81.
you multiply 3 x 10 x 3, which is 90. then subtract 9 from that and you end up with 81
Umnica [9.8K]3 years ago
3 0
The answer would be 81 unless you wrote the question wrongly
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Jason is covering an ottoman with fabric. The ottoman is in the shape of a rectangular prism that is 37 cm long, 21 wide, and 30
GrogVix [38]

Answer:

4,257 m²

Step-by-step explanation:

step 1

Find the lateral area of the rectangular prism (ottoman)

The lateral area is

LA=PH

where

P is the perimeter of the base

H is the height of the prism

Find the perimeter of the base P

P=2(37+21)=116 cm

we have H=30 cm

<em>Find the lateral area</em>

LA=116(30)=3,480 m²

step 2

Find the area of the top of the ottoman

B=37*21=777 m²

step 3

we know that

The fabric needed to cover the sides and top of the ottoman is equal to sum the lateral area plus the area of the top

3,480+777=4,257 m²

7 0
3 years ago
Please help What number should be placed in the box to help complete the division calculation?
tresset_1 [31]

Answer:

702

Step-by-step explanation:

The best way to do it is to divide 13 into 702. 13 doesn't go into 7 but it does go into 70 5 times. 70 - 65 = 5. Once you bring down the 2, 5 turns into 52 which 13 goes evenly into it 4 times. So your answer for that is 54. Then to get your number you multiply 54 with 13 and you get 702. So 702 is your answer.

7 0
2 years ago
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Find the unit rate for $5.40 for 24 cans
vichka [17]
Ok so $5.40 divided by 24 = 0.225. Each can is $0.225
3 0
3 years ago
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Liula [17]

Answer:

Correlation Coefficient r value of 0.05 means a weak or very weak positive relationship while

Correlation Coefficient r value of 0.80 means a strong positive relationship

Step-by-step explanation:

Correlation Coefficient (r) signifies the strength of relationship which exists between two linear variables. The value of r ranges from - 1 to + 1 where positive and negative values signifies a positive and negative relationship relationship respectively.

The closer the r value is to either +1 or - 1, the greater the strength of the relationship while a r value of 0 means, there is no relationship between the two variables.

Hence in the scenario above :

Correlation Coefficient r value of 0.05 means a weak or very weak positive relationship while

Correlation Coefficient r value of 0.80 means a strong positive relationship

5 0
3 years ago
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Semmy [17]
So the which page that will have the 3 sticker, we must solve the least common multiple of 30, 50, 60. <span>A common multiple is a number that is a multiple of two or more numbers. The common multiples of 3 and 4 are 0, 12, 24, ....</span>

<span>The least common multiple (LCM) of two numbers is the smallest number (not zero) that is a multiple of both.</span>

<span>so the least common multiple of 30, 50 and 60 is 300. so the page that will have 3 stickers is 300th page</span>

7 0
3 years ago
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