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3 years ago

I need help please :(

Mathematics

2 answers:

Paha777 [63]3 years ago

6 0

Answer:

The answer is option 1.

Step-by-step explanation:

You have to apply Indices Law :

$\frac{ {a}^{m} }{ {a}^{n} } ⇒ {a}^{m - n}$

So for this question,

$\frac{ {7}^{ - 3} }{ {7}^{ - 5} } = {7}^{ - 3 - ( - 5)} = {7}^{ - 3 + 5} = {7}^{2}$

Orlov [11]3 years ago

4 0

Answer :

7²

$\frac{ {7}^{ - 3} }{ {7}^{ - 5} } = \\ {7}^{ - 3 - ( - 5)} = \\ {7}^{ - 3 + 5} = {?}^{2}$

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Determine the seating capacity of an auditorium with 35 rows of seats if there are 20 seats in the first row, 23 seats in the se

777dan777 [17]

Answer:

2485

Step-by-step explanation:

The number of seats in row n is given by the explicit formula for an arithmetic sequence:

an = a1 +d(n -1)

an = 20 +3(n -1)

The middle row is row 18, so has ...

a18 = 20 + 3(18 -1) = 71 . . . . seats

The total number of seats is the product of the number of rows and the number of seats in the middle row:

capacity = (71)(35) = 2485

The seating capacity is 2485.

8 0

3 years ago

I need help for this

notsponge [240]

A. quadrant 2
b. quadrant 4
c. quadrant 3

6 0

3 years ago

6 x (36÷12)2 + 8 = =

svp [43]

6*(36/12)2+8

=44

Hope this helped :T

7 0

3 years ago

Read 2 more answers

What is the simplified form of 4 log3y - 6 log3x + 7 log3z?

GaryK [48]

$\qquad \qquad \bf \huge\star \: \: \large{ \underline{Answer} } \huge \: \: \star$

[ b ] is the Correct one

$\textsf{ \underline{\underline{Steps to solve the problem} }:}$

$\qquad❖ \: \sf \:4 \: log_{3}(y) - 6 \: log_{3}(x) + 7 \: log_{3}(z)$

$\qquad❖ \: \sf \: \: log_{3}(y {}^{4} ) - \: log_{3}(x {}^{6} ) +\: log_{3}(z {}^{7} )$

$\qquad❖ \: \sf \: \: log_{3}(y {}^{4} ) + \: log_{3}(z{}^{7} ) - \: log_{3}(x {}^{6} )$

( $\sf a\: log (b) = log {b}^{a}$ )

$\qquad❖ \: \sf \: log_{3}( {y}^{4} {z}^{7} ) - log_{3}( {x}^{6} {}^{} )$

( $\sf{log (a) + log (b) = log (ab)}$ )

$\qquad❖ \: \sf \: log_{3} \bigg( \dfrac{y {}^{4} {z}^{7} }{ {x}^{6} } \bigg )$

( $\sf{log (a) - log (b) = log (a/b)}$ )

$\qquad \large \sf {Conclusion} :$

[ b ] is the Correct choice

4 0

2 years ago

1.Origin

expeople1 [14]

Step-by-step explanation:

Origin is 5.

Y Axis is 2

Run is 9

Solution of a Line is 13.

Ordered Pairs is 4.

Quadrant is 6.

Solution of Linear Equation is 12.

Slope is 10.

Slope Intercept Form is 16.

Rise is 8.

Y intercept is 15.

Parallel Lines is 17.

X intercept is 14.

X axis is 3.

Linear Equation is 7.

Perpendicular Lines is 18.

Point Slope Form is 11.

Coordinate plane is 1.

7 0

3 years ago