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Lilit [14]
3 years ago
5

Jonas builds a snow fort. He tells his friends it is 0.8 meters tall inside, but he rounded the height to the nearest tenth. Whi

ch could be the height of the snow fort before Jonas rounded it? 0.89 m 0.74 m 0.85 0.77
Mathematics
1 answer:
Lelu [443]3 years ago
5 0

Answer:

0.77

Step-by-step explanation:

If you had to round to the nearest tenth, 0.89 would round to 0.9. 0.74 would round down to 0.7. 0.85 would also round up to 0.9, which leaves the last answer, 9.77 to be rounded to 0.8. Hope this helps

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Scientific Notation:<br> what’s (2.2 x 10 to the -4) - (3 x 10 to the 2)
Marrrta [24]

Answer:

2.23\times10^4

Step-by-step explanation:

In order to get the answer to this question you need to turn the scientific notations into standard form then subtract the two standard forms.

(2.2\times10^{-4})-(3\times10^2)

Turn the notations into standard form:

2.2\times10^{-4} = .00022

3\times10^2=300

.00022-300=22300

=22300

Turn into notation form:

22300 = 2.23\times10^{4}

Hope this helps.

8 0
3 years ago
Whats x? i don’t understand
rewona [7]

Answer:

The letter "x" is often used in algebra to mean a value that is not yet known. It is called a "variable" or sometimes an "unknown". In x + 2 = 7, x is a variable, but we can work out its value if we try! A variable doesn't have to be "x", it could be "y", "w" or any letter, name or symbol. See: Variable.

Step-by-step explanation:

8 0
3 years ago
The length of a room is 10 and 1/2 feet what is the length of the room in inches
yulyashka [42]
First, 10 1/2 is the same as 21/2

If there are 12 inches in a foot then
21/2*12=126 inches


3 0
3 years ago
Read 2 more answers
Not sure how to do this, I will give Brainiest for step-by-step instructions.
Mkey [24]
Find 2 coordinates on the graph : (0, -20) and (10, 10)

Slope = (10 - (-20) ) / (10 - 0) = 30/10 = 3

Slope = 3

y-intercept = (0, - 20)

Equation : y = 3x - 20

Since the right hand side is shaded,  the equation is y > 3x - 20.
4 0
4 years ago
A decorator adds vases to a mantle to decorate. She wants to use 2 matching green vases, 3 matching blue vases, and 4 matching w
hjlf
There are 2 green, 3 blue, and 4 white vases.
The green vases can be arranged in 2! = 2*1 = 2 ways.
The blue vases can be arranged in 3! = 3*21 = 6 ways.
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The total number of arrangements is
2*6*24 = 288

Answer: 288

3 0
3 years ago
Read 2 more answers
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