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zloy xaker [14]
3 years ago
11

Solve the equation 6x+7x−3x=13+7. Be sure to check your proposed solution by substituting it for the variable in the original eq

uation.
Mathematics
1 answer:
DerKrebs [107]3 years ago
3 0

Answer:

x=2

Step-by-step explanation:

6x+7x−3x=13+7

10x=20

x=20/10

x=2

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Which rational exponent represents a square root?<br> A. 1 / 2<br> B. 3/2<br> C. 1/3<br> D. 1/4
Fofino [41]

Answer:

1/2 rational exponent represents a square root.

Therefore, option A is correct.

Step-by-step explanation:

As we know that raising to the one-half power i.e. \frac{1}{2} is the same

as taking the square root.

  • so x^{\frac{1}{2}} is the same as the square root of x.

For example, taking the square root of 4 will determine:

4^{\frac{1}{2}}

\mathrm{Factor\:the\:number:\:}\:4=2^2

4^{\frac{1}{2}}=\left(2^2\right)^{\frac{1}{2}}

\mathrm{Apply\:exponent\:rule}:\quad \left(a^b\right)^c=a^{bc},\:\quad \:a\ge 0

\left(2^2\right)^{\frac{1}{2}}=2^{2\cdot \frac{1}{2}}

so the expression becomes

4^{\frac{1}{2}}=2^{2\cdot \:\frac{1}{2}}

    =2^1

    =2         ∵ \mathrm{Apply\:exponent\:rule}:\quad \:a^1=a

so, 1/2 rational exponent represents a square root.

Therefore, option A is correct.

5 0
3 years ago
Read 2 more answers
Question 1 of 5
raketka [301]

Answer:

The mean of the data is 3 inches, is false

Step-by-step explanation:

3, 3, 4, 4, and 6 inches.

To find the mean, add the numbers together and divide by the number of data points

( 3+3+4+4+6)/5 = 20/5 = 4

The median is the middle number

3, 3,    4,      4, and 6 inches.

The median is 4

The range is the largest number minus the smallest number

6-3 =3

6 0
2 years ago
10 3 -4 -11. arithmetic or geometric​
Dominik [7]

Answer:

Arithmetic (sequence?)

Step-by-step explanation:

Is arithmetic because the differences of each number is a constant -7

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3 years ago
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Kathy is making some smoothies. The recipe uses 10 strawberries, s, for every 15 ounces of peaches, p.
S_A_V [24]

Answer:

i dont know

Step-by-step explanation:

?????????????????????????

6 0
3 years ago
What is the solution to the equation? 2/3a -1/6=1/3
Monica [59]

Answer:

by2

a−2=

6

5

a

\frac{2}{3}a-\frac{5}{6}a=2

3

2

a−

6

5

a=2

\frac{4a-5a}{6}=2

6

4a−5a

=2

\frac{-a}{6}=2

6

−a

=2

-a=2\times 6−a=2×6

-a=12−a=12

a=-12a=−12

Therefore, the value of a will be -12.

#Learn more

Solve : 3a + 4/ 2 - 6a = -2/5

5 0
3 years ago
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