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german
3 years ago
5

Help 7th grade math!

Mathematics
2 answers:
Levart [38]3 years ago
7 0

Answer:

Step-by-step explanation:

Oh and 42feet

Ilya [14]3 years ago
3 0

Answer:

42 feet

Step-by-step explanation:

if 1" equals 5' then multiply 8.4 by 5 to get 42

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Natalie is flying a kite, holding her hands a distance of 2.5 feet above the ground and
Grace [21]

Answer:

50

Step-by-step explanation:

trust me bro

7 0
3 years ago
Christian was 145 cm tall when he was 12 years old. And 3 years later, he became 168.2 cm tall. By what percent did Christian's
Sav [38]

Answer: 16%

Step-by-step explanation:

168.2 - 145 = 23.2

23.2/145 = 0.16

0.16 as a percent is 16%

6 0
3 years ago
When rolling two 6-sided cubes, what are the chances that the sum of the roll will be 7?
IrinaVladis [17]
4+3
2+5
6+1
3 chances of landing a 7.
7 0
3 years ago
Pat shows that 16 1/2= the square root of 16. What is one possible way pat could have shown this correctly?
kifflom [539]
<h3>Answer: Choice C</h3>

The base 16 is the same as 4*4.

From there, the rule (a*b)^c = a^c*b^c is used to get (4*4)^{1/2} = 4^{1/2}*4^{1/2}

Afterward, the exponents are added getting 1/2+1/2 = 2/2 = 1. The rule is a^b*a^c = a^{b+c} which only works if the bases are both the same.

6 0
4 years ago
Prove that the value of the expression<br> (16^3–8^3)(4^3 +2^3) is divisible by 63.
Darya [45]

Answer:

Step-by-step explanation:

16^3 - 8^3

Take out 8^3 as a common factor.

16^3 = 2^3 * 8^3

8^3(2^3 - 1)  

8^3(8 - 1) = 8^3 * 7

(4^3 + 2^3)     Expand

64 + 8            Combine

72

72 = 9 * 8

Conclusion

(8*3 * 7 )(9*8)

7*9 = 63

So any number containing 63 will divide into the reduced form of

(16^3–8^3)(4^3 +2^3)

7 0
2 years ago
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