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serious [3.7K]
3 years ago
5

Solve for 7 and 8 please

Mathematics
1 answer:
Masteriza [31]3 years ago
8 0
To divide exponents they have to have the same base and then you just subtract the bottom exponent from the top exponent.

7) k × 3^9
----------- =
3^5

k × 3^9-5 =
k × 3^4 =
k × 81 = 81k

8) x^4 × y^10 × 2^11
------------------------ =
y^8 × 2^7

x^4 × y^10-8 × 2^11-7 =
x^4 × y^2 × 2^4 =
x^4 × y^2 × 16=
16x^4y^2
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Absolute value of [4-9]​
Firdavs [7]

Answer:

-5

Step-by-step explanation:

==> [4-9]

==>[-5]

==> -5

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2 years ago
A survey is given to every 4th grade student that walks into the school. What type of survey is this?
katrin [286]
Pop quiz? I at least think
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3 years ago
By rounding to 1 significant figure , estimate <br><br> 40.73 x 1.06<br><br> Anyone know?
suter [353]

ANSWER: 40

EXPLANATION:

1) 40.73 to 1 significant figure = 40.

2) 1.06 to 1 significant figure = 1.

3) Therefore, we just multiply 40 by 1, which equals 40.

FURTHER EXPLANATION (IF NEEDED):

With significant figures, whole numbers such as 10, 20, 50 etc. have 1 significant figure. This is because the 0 does not count as a significant figure.

With decimals, all numbers after the decimal point are also included as significant figures (even 0). E.g. 40.73 has 4 significant figures and 1.06 has 3 significant figures.

EXAMPLES (IF NEEDED):

Rounding to 2 significant figures:

  • 40.73 = 42
  • 1.06 = 1.1

Rounding to 3 significant figures:

  • 40.73 = 40.7
  • 1.06 = 1.06 (because it's already in 3 significant figures)

Rounding to 4 significant figures:

  • 40.73 = 40.73 (already in 4 significant figures)
  • 1.06 = 1.060 (0 is counted as a significant figure if there is a decimal or another number comes after that 0)

E.g. 1006 has 4 sig figs, while 1060 would have 3 sig figs because the last 0 is not counted as a significant figure. 10.60 would have 4 sig figs because of the decimal.

8 0
3 years ago
WILL MARK YOU BRAINLIEST
kaheart [24]

Step-by-step explanation:

question is not clear enough

Can't see the letters even

7 0
3 years ago
A map shows the road between the cities of Saxon and Melbeck. If the distance on the map between the two cities is 7 inches, wha
goblinko [34]

Answer:

17.5

Step-by-step explanation:

2:5

7 divided by 2 is 3.5

The difference is 3.5, now times each side by 3.5

7 inches:17.5 miles

6 0
3 years ago
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