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marta [7]
3 years ago
11

Simplify. (-2)^-3...............

Mathematics
2 answers:
Sav [38]3 years ago
8 0

Answer:

-1/8 or -0.25 is the correct answer...

trapecia [35]3 years ago
6 0

Answer:

the answer is -8

Step-by-step explanation:

because the negative sign is inside the parentheses with the 2, (-2)^3 can be expanded to -2*-2*-2.

now solve.

-2*-2*-2\\4*-2\\-8

hope this helps!

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Find the midpoint of the line segment with the given endpoints. 1) (-4, -9), (-6, -6)
weeeeeb [17]

Answer:

The answer is

<h2>( - 5 \: , \:  -  \frac{15}{2} )</h2>

Step-by-step explanation:

The midpoint M of two endpoints of a given line segment can be found by using the formula

<h3>M = ( \frac{x1 + x2}{2}  , \frac{y1 + y2}{2} )</h3>

where

(x1 , y1) and (x2 , y2) are the points

From the question the points are

(-4, -9), (-6, -6)

The midpoint is

<h3>M = ( \frac{ - 4 - 6}{2}  , \:  \frac{ - 9 - 6}{2} ) \\  = ( -  \frac{10}{2} , -  \frac{15}{2} )</h3>

We have the final answer as

<h3>( - 5 \: , \:  -  \frac{15}{2} )</h3>

Hope this helps you

8 0
3 years ago
Suppose that Drake works for a research institute in Greenland and is given the job of treating wild polar bears there for hypot
kvv77 [185]

Step-by-step explanation:

<em>Check the attached file for solution and </em>

<em>simulation screen shot</em>

R-Code:

Sample mean

sd = 60 Population Standard deviation

n = 10 Sample size

conf.level = 0.99 Confidence level

\alpha = 1-conf.level

z\star = \round(\qnorm(1-\alpha/2),2); z.\star

E = \round(z* \times \sigma/\sqrt(n),2); E

x= c(E,-E)

7 0
4 years ago
X + 23 = −4<br> 1.) x = −313<br> 2.) x = −423<br> 3.) x = 313<br> 4.)x = 423
Novay_Z [31]

x =  - 4 +  - 23

x =  - 27

3 0
3 years ago
Please help me with this problem, lots of points!
ziro4ka [17]

Answer:

A  f(x) = 1/3x^3

Step-by-step explanation:

g(x) = x^3

We want f(x) to be vertically compressed

f(x) = ag(x )    

a is vertical stretch/compression

|a| > 1 stretches  

|a| < 1 compresses

so we need to multiply by a number less than between 0 and 1

If a is negative it is a reflection, which was not asked for

f(x) = 1/3 x^3

8 0
3 years ago
5(14x)+1(8x)+2(6x)+2(10x)+4(7x)=1626.35<br> X=?
densk [106]

Answer:

11.78

Step-by-step:

78x + 8x + 12x + 20x + 28x

78x + 32x + 28x

= 138x

1626.35/138

= 11.78

8 0
4 years ago
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