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AnnyKZ [126]
3 years ago
12

MY LAST QUESTION!!!

Mathematics
2 answers:
Sedaia [141]3 years ago
8 0

Answer:

0 to at least 12

Step-by-step explanation:


sveta [45]3 years ago
3 0

The first ____ is 49 since she has to run 14 days (2 weeks) so multiply 14 and 3.5 (runs 3.5 miles each day)

The second blank is 14 because thats how many days she will run

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Please answer this and thank you<br><br> If DE=4x+10, EF=2-1, and DF=9x-15, find DF.
professor190 [17]
I hope that 2-1 means 21.

DE + EF = DF
4x + 10 + 21 = 9x - 15
4x + 31 = 9x - 15
31 = 9x - 4x - 15
31 = 5x - 15
46 = 5x
x = 9 1/5 = 9.2

You want 9x - 15
9*9.2 - 15
82.8 - 15
67.8 <<<<< answer. 
If I have given the wrong meaning to 2-1 (which could mean 1) leave another note and I will correct my work. 
8 0
3 years ago
Which best describes the solution to 4 – 7? Because –4 + (–7) is an equivalent expression, the answer is –11. Because 4 + (–7) i
ANTONII [103]
The answer to your question would be: Because 4 + (-7) is an equivalent expression, your answer is -3. The reason for this can be described using integers. So lets say you have $4. You owe your brother $7. Since you don't have enough to pay him, you can pay him all your money, but you still have to pay him $3 more. This means technically your balance is $-3, cause if he needs the money, the second you get it he will ask for it. Sorry if this isn't too great of an example, not sure what else I could think of. Pretty much remember when subtracting a number, you can add the negative of the number, because that is the same thing. Hope this helps. Please rate, leave a thanks, and mark a brainliest answer (Not necessarily mine). Thanks, it really helps! :D
3 0
3 years ago
Read 2 more answers
Find the cosine and sine of 210. Round your answers to the nearest hundredth if necessary
Assoli18 [71]
The cosine is -0.88
This is rounded from <span>-0.88387747318

The sine is .48.
This is rounded from </span><span>0.46771851834</span>
8 0
3 years ago
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Which expression is not equivalent to 8 · x · 2 · y?<br><br> 16yx<br> 8x + 2y<br> 16xy
IceJOKER [234]

Answer:

8x + 2y.

Step-by-step explanation:

8 . x . 2 . y = 16xy = 16yx

4 0
3 years ago
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Write an equation to show the height of the two buildings are equal to each other. Then solve for x. Show all your steps when so
Ierofanga [76]

Answer:

X = 108.

Step-by-step explanation:

Heights are equal, So equation will be,

4 + 3 \sqrt{x - 8}  = 34

So, solving the eq.

Subtract 4 from both sides ,

3 \sqrt{x - 8}  = 30

Divide 3 to both sides,

\sqrt{x - 8}  = 10

Squaring both sides,

x - 8 = 100

Add 8 to both sides,

x = 108

8 0
3 years ago
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