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EastWind [94]
2 years ago
15

(-41) + (-40) = ?

Mathematics
1 answer:
ValentinkaMS [17]2 years ago
4 0

Answer:

( - 41) + ( - 40) \\  - 41 - 40 \\ 81

Step-by-step explanation:

I hope I helped you! :)

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Solve and graph |-8x|<8 help me lol
gregori [183]

Step-by-step explanation:

|-x|<1 --> -1<-x<1 --> -1<x<1

so the graph is the striped part

3 0
3 years ago
Refer to the equation 2x − 6y = 12.
Olin [163]

Answer:

66

Step-by-step explanation:

5 0
3 years ago
The average amount parents and children spent per child on back-to-school clothes in Autumn 2010 was $527. Assume the standard d
Ad libitum [116K]

Answer: a. 0.14085

b. 3.826 x 10^{-3}

c.  0.5437

d. 0.0811  

Step-by-step explanation:

Given average amount parents and children spent per child on back-to-school clothes in Autumn 2010 , \mu = $527

Given standard deviation , \sigma = $160

Let X = amount spent on a randomly selected child

Also Z = \frac{X-\mu}{\sigma}

a. Probability(X>$700) = P(\frac{X-\mu}{\sigma} > \frac{700-527}{160}) = P(Z>1.08125) = 0.14085 {Using Z % table}

b. P(X<100) = P( Z < \frac{100-527}{160}) = P(Z< -2.66875) = P(Z > 2.66875) = 3.826 x 10^{-3}

c. P(450<X<700) = P(X<700) - P(X<=450)

   P(X<700) = 1 - P(X>=700) = 1 - 0.14085 = 0.8592

   P(X<=450) = P(Z<= \frac{450-527}{160}) = P(Z<= -0.48125) = P(Z<=0.48125) = 0.3155

   So final   P(450<X<700) =  0.8592 - 0.3155 = 0.5437

d. P(X<=300) = P(Z<= \frac{300-527}{160}) = P(Z<= -1.4188) = P(Z>=1.4188) = 0.0811                                                                        

All the above probabilities are calculated using Z % table along with interpolation between two values.

7 0
3 years ago
What is 26 divided by 988
olga2289 [7]
Its an absurd decimal, which I'm pretty sure you don't want but will give to you anyway. Its roughly 0.02631578947...
5 0
3 years ago
Please help! Brainliest, stars, and hearts! Explain please! I GIVE BRAINLIEST if CORRECT!
BlackZzzverrR [31]

Answer:

x=31

Step-by-step explanation:

3x+25+2x=180°

=5x=155°

x=155/5

x=31

5 0
3 years ago
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