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IRINA_888 [86]
3 years ago
7

What is the sum of 11.11 km and 22.2 km using the correct number of significant digits?

Mathematics
1 answer:
Ivahew [28]3 years ago
7 0
The sum is 33.31km, you just line up the decimals and a zero behind the two to help you out and make sure it's lined up.
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Point R divides in the ratio 1 : 3. If the x-coordinate of R is -1 and the x-coordinate of P is -3, what is the x-coordinate of
Anon25 [30]

The x coordinate of Q would be 5.

In order to find this, first note that P and R are exactly 2 away from each other (-1 to -3 is two away).

Now, we know that Q is 3 times as far away from R as P is given the ratio at the beginning. Therefore we know it is 6 away from R (2 * 3 = 6).

Now we simply add 6 to the R value to get the Q value.

-1 + 6 = 5

3 0
4 years ago
What is the value of x in the equation 2(x – 3) + 9 = 3(x + 1) + x?<br><br> x =
Mademuasel [1]
It means the same:

2x - 6 + 9 = 3x + 3 + x
2x +3 = 4x + 3
2x - 4x = 3 - 3
-2x = 0
x = 0/(-2) = 0

Answer:
x = 0
7 0
3 years ago
Read 2 more answers
Mr.Hall stands 200 meters from the base of the water tower. He finds the angle of elevation to the top of the water to be 27 deg
gayaneshka [121]

Answer:

227

Step-by-step explanation:

Just add :)

5 0
4 years ago
Find the product in lowest term<br> 88/66 . 8/13 . 26/7
Sphinxa [80]

Answer:

3 1/21 or 64/21

Step-by-step explanation:

  • \frac{88}{66} * \frac{8}{13} * \frac{26}{7}
  • \frac{4}{3}*\frac{8}{13}  * \frac{26}{7}  
  • \frac{32}{39} * \frac{26}{7}
  • \frac{832}{273}
  • \frac{832}{273} = \frac{64}{21}
  • \frac{64}{21} = 3\frac{1}{21}

Therefore, the answer is 3 1/21 or 64/21. (They're the same thing.)

3 0
3 years ago
PLEASE PLEASE HELP ME?!?!!? PLEASSEE I ONLY HAVE 2 QUESTIONS!!!
Nonamiya [84]
<h3>Answer:</h3>
  1. d. The y-intercept is 1 space higher.
  2. a. 9 to the power of -1/2
<h3>Step-by-step explanation:</h3>

1. Changing f(x) to f(x) + 1 adds 1 to every output value of the function, moving that value "1 space higher". This is true for the y-intercept, too.

___

2. The rules of exponents apply:

  • a^b · a^c = a^(b+c)
  • 1/a^b = a^-b

You apparently want to simplify ...

... 9^(1/4) × 9^(1/2) / 9^(5/4)

... = 9^(1/4 + 1/2 - 5/4)

... = 9^((1+2-5)/4)

... = 9^(-2/4) = 9^(-1/2)

7 0
3 years ago
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