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3 years ago

Please help!!!

Mathematics

1 answer:

RideAnS [48]3 years ago

5 0

Answer:

B) n ≥ - 9 and n ≤ 1

Step-by-step explanation:

-3 <= n+6 <= 7

subtract 6 from all 3 sides

-3 -6 <= n+6 -6 <= 7-6

-9 <= n <= 1

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What is the value of x?<br><br> x + 13 = 59

Volgvan

Answer:

x=46

Step-by-step explanation:

subtract 13 from both sides

x=59-13=46

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3 years ago

The net of a square pyramid is shown in the diagram. What is the total surface area of the square pyramid in square inches? Reco

VARVARA [1.3K]

Answer:

208

Step-by-step explanation:

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2 years ago

Math To Do Ready

emmasim [6.3K]

Answer:

At 1pm, the number of bacteria in the dish is 1,000,000

At 12pm, the number of bacteria in the dish is 500,000

Step-by-step explanation:

Given the information on the table

$\left|\begin{array}{c|c}$Hour&$Number of Bacteria (in millions)\\---&--------------\\12 p.m.&\\1 p.m.&\\12 p.m.&\\2 p.m.&\\3 p.m.&\\4 p.m.&\\5 p.m.&32\\6 p.m.&64\end{array}\right|$

We are to follow the pattern to determine how many million bacteria were in the dish at 1 p.m. and 12 p.m.

Now:

$32=2^5\\64=2^6$

It therefore means that the bacteria population doubles every hour. Following this pattern and reducing the exponents by 1 backwards, we have:

$\left|\begin{array}{c|c}$Hour&$Number of Bacteria (in millions)\\---&--------------\\12 p.m.&2^{-1}=0.5\\1 p.m.&2^0=1\\12 p.m.&2^1=2\\2 p.m.&2^2=4\\3 p.m.&2^3=8\\4 p.m.&2^4=16\\5 p.m.&2^5=32\\6 p.m.&2^6=64\end{array}\right|$

Therefore:

At 1pm, the number of bacteria in the dish is 1,000,000
At 12pm, the number of bacteria is 0.5 million=0.5 X 1,000,000=500,000

3 0

2 years ago

What are the soltions to the innequality -7x+14 is grater than -3x-6

hichkok12 [17]

-7x+14>-3x-6

Add 3x to both sides

-7x+14+3x>-3x-6+3x

-4x+14>-6

Subtract 14 from both sides

-4x+14-14>-6-14

-4x>-20

Divide both sides by -4

-4x/4>-20/-4

x<5

I hope that's help , please let me know !

7 0

2 years ago

You roll a number cube and flip a coin.What is the probability of rolling a number less than 2 and flipping tails. Write your an

vesna_86 [32]

Answer:

1/6

Step-by-step explanation:

number cube 6 faces less than 2, only 2 possibilities, leaving us with a fraction of 2/6=1/3

tails is a 50 percent chance or 1/2

3/6 time 2/6

equals:

1/6

the probability of rolling a number less than 2 and flipping tails on a coin is 1/6

find probability of event a: number cube and multiply it by probability of event b: coin

8 0

3 years ago