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Crank
3 years ago
7

“ write all your answers with a positive exponent so your answer will be in the form of x^# or 1/(x^#)

Mathematics
1 answer:
gayaneshka [121]3 years ago
7 0

Answer:

Step-by-step explanation:

5). \frac{1}{x^{-9}} = \frac{1}{\frac{1}{x^9} }

     = x^{9}

6). \frac{1}{x^{-2}}=\frac{1}{\frac{1}{x^2} }

      = x²

7). x^{-6}=\frac{1}{x^6}

8). \frac{1}{x^{-7}}=\frac{1}{\frac{1}{x^7} }

           = x^{7}

9). x^{-8}=\frac{1}{x^8}

10). \frac{1}{x^{-3}} = \frac{1}{\frac{1}{x^{3}}}

            = x³

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Which expressions are equivilent to -4 2/7 + (-1 1/2) + (-3/7)
nika2105 [10]
Is this a multi question ? If so
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8 0
3 years ago
Create an equivalent system of equations using the sum of the system and the first equation.
True [87]

Answer:

D

Step-by-step explanation:

x+4y=8

4x+y=2

add

5x+5y=10

so system is

x+4y=8

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6 0
3 years ago
6
denis23 [38]

Answer:

B = 325

Step-by-step explanation:

Given

Total = 900

Singing = 600

Dancing = 500

None = 125

Required

Determine the number of students that participate in both

Representing; Singing with S, Dancing with D, Both singing and dancing with B and None with N;

In Set Notation;

Total = (S - B) + (D - B) + N + B

Substitute 900 for Total, 600 for S, 500 for D and 125 for N

900 = (600 - B) + (500 - B) + 125

Open Brackets

900 = 600 - B + 500 - B + 125 + B

Collect Like Terms

900 = 600  + 500  + 125 - B - B + B

900 = 1225- B - B + B

900 = 1225- B

Collect Like Terms

900 - 1225 = -B

-325 = -B

Multiply both sides by -1

-1 * -325 = -B * -1

325 = B

Reorder

B = 325

<em>Hence, the number of students that do not participate in both is 325</em>

4 0
3 years ago
Give the domain and range of the relation (10,-3),(12,3),(-8,-7),(6,-1)
Iteru [2.4K]

Domain: {10, 12, -8, 6}

Range: {-3, 3, -7, -1}

There is one value of <em>y</em><em> </em>for every value of <em>x</em>.

This relation is a function.

6 0
3 years ago
B) Alfredo said that Angle 7 and Angle 6 are congruent and that would prove Line m
malfutka [58]

Answer:

Yes if Angle 7 and angle 6 are linear pairs in angles created by a straight line that cuts through parallel lines.

Step-by-step explanation:

Remember that two parallel lines that are cut by a transveral will create 8 angles, which will be similar to each other. Making four pairs of congruent angles means that they will be exactly the same angle located in different parts of the system. So if angles 6 and 7 are congruent, and the lines are cut by a transversal, then the lines are parallel.

6 0
3 years ago
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