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svet-max [94.6K]
3 years ago
7

If (-3) exponent -5 = 1/x, what is the value of x? -243 - 1/243 1/243 243

Mathematics
1 answer:
trapecia [35]3 years ago
6 0

Answer:

\boxed {-243}\\

Step-by-step explanation:

\begin{array}{rclr}(-3)^{-5} & = & \dfrac{1}{x}& &\\(-3)^{5} & = & x &\text{Inverted each side of the equation}\\x & = & \boxed {\textbf{{-243}}}\\\end{array}

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Can someone plz answer B and C
Shkiper50 [21]

B. 
When two lines intersect they form two pairs of opposite angles.
Vertical angles are always congruent, which means that they are equal.
so  m<7 = m<8 or m<3y + 19 = m<5y-29


C. solve for y and measure <7 and <8

 3y + 19 = 5y-29
5y - 3y = 19+29
2y = 48
y = 24

so
5y-29 = 5(24) - 29 = 91
3y + 19 = 3(24) + 19 = 91

so <7 = 180 - 91 = 89
<7 = <8 = 89
4 0
3 years ago
Nancy and Harry are sliding a stone statue and moving it to a new location in their garden. Nancy is pushing the statue with a f
Nimfa-mama [501]

Answer:

197,8879 N.

Step-by-step explanation:

The magnitude of the horizontal force exerted on the statue can be calculated using trigonometric functions.

The question given says that <em><u>Nancy</u></em> is <em><u>pushing</u></em> the statue with a force of<em><u> 120 N at a 60° angle to the horizontal</u></em> and <em><u>Harry</u></em> is <em><u>pulling</u></em> the statue with a force of <u><em>180 N at a 40° angle with the horizontal</em></u>.

With that information can be calculated the horizontal force exerted on the statue by Nancy, the horizontal force exerted on the statue by Harry and, adding that results, the total horizontal magnitude can be calculated.

The cosine function can be used to calculate the horizontal component of the forces exerted by Nancy and Harry, to determine the horizontal component of the force exerted on the statue.

F= (120 N cos 60°) + (180 N x cos 40°)

F= 197,8879 N

3 0
3 years ago
Write each decimal as a fraction of mixed number in simplest form.<br><br> 1.0.675<br><br> 2.0.44
liubo4ka [24]

Answer:

Step-by-step explanation:

Sorry this is a tough one and I don’t want to give you the wrong answer sorry again

8 0
3 years ago
A cube has a volume of 1000cm^3. Work out the surface area Of the cube.
erik [133]

Answer:

600

Step-by-step explanation:

V = s×s×s = s³

V = 10×10×10 =1,000

Surface area

6a² = 6(10²) =600

6 0
2 years ago
QUESTION 4 of 10: It is estimated that 32 patrons will attend an event for every $100 spent in advertising. If tickets cost $75,
PolarNik [594]

Answer:

  • $575000

Step-by-step explanation:

Spend on advertising = $25000

32 patrons per $100

<u>Number of patrons:</u>

  • 25000/100×32 = 8000

<u>Sales amount:</u>

  • 8000×$75 = $600000

<u>Increase in sales excluding advertisement cost:</u>

  • $600000 - $25000 = $575000
5 0
3 years ago
Read 2 more answers
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