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ExtremeBDS [4]
2 years ago
14

Evaluate 5 \left(-3\right)-65 (−3)−65, plus, left parenthesis, minus, 3, right parenthesis, minus, 6.

Mathematics
1 answer:
bezimeni [28]2 years ago
3 0

Let the expression be 5(-3) - 65(-3) - 65 simplifying the expression we get 115.

<h3>What is PEMDAS order of operations?</h3>

PEMDAS: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).

Given: 5(-3) - 65(-3) - 65

Follow the PEMDAS order of operations

Multiply and divide (left to right), 5(-3) = -15

= -15 - 65(-3) - 65

Multiply and divide (left to right), 65(-3) = -195

=-15 - (-195) - 65

Add and subtract (left to right),

-15-(-195)-65 = 115

To learn more about PEMDAS order of operations refer to:

brainly.com/question/550188

#SPJ4

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Please HElppppppppppppp meeeeeeee! I have less than 10 minutes!
attashe74 [19]

Answer:

A) 5  3/10

B) 785 3/20

Step-by-step explanation:

Hope this helps <3

you find a common denominator and then simplify all fractions to that common denominator. then, you add them up!

2 1/5 + 3 1/10

5 can fit into 10 twice so it becomes...

2 2/10 + 3 1/10 which equals

<u>5 3/10</u>

472 2/5 + 312 3/4

5 times 4 is 20

472 8/20 + 312 15/20

there is a remainder of 3 for the fractions so you put it over 20.

<u>785 3/20</u>

8 0
3 years ago
Voltage sags and swells. The power quality of a transformer is measured by the quality of the voltage. Two causes of poor power
zysi [14]

Answer:

a

 z-score = 1.57

b

 z-score_s = -3.36

Step-by-step explanation:

From the question we are told that

   The sample size is  n =  103  

    The  sample mean of  sag is  \= x_1 =  353

     The sample mean of swells is  \= x_2 =  184

    The standard deviation of  sag is  s_1  =  30

     The standard deviation of swells is  s_2  =  25

     The number of swell for a randomly selected transformer is  k  =  100

      The number of sag for a randomly selected transformer is  c  =  400

Generally the z-score for the number of swells is mathematically represented as

     z-score_s = \frac{ k - \= x_2}{s_2}

=>   z-score_s = \frac{ 100- 184}{25}

=>     z-score_s = -3.36

       

Generally the z-score for the number of sags is mathematically represented as    

      z-score = \frac{ c - \= x_1}{s_1}

     z-score = \frac{ 400 - 353}{30}

     z-score = 1.57

4 0
3 years ago
2h divided by 15 equals 20
Lynna [10]
<span>(2*h)/15 = 20 // - 20

(2*h)/15-20 = 0

2/15*h-20 = 0 // + 20

2/15*h = 20 // : 2/15

h = 20/2/15

h = 150

h = 150</span>
8 0
3 years ago
Help me, please i im failing maath 41 f
antiseptic1488 [7]

Answer:

C

Step-by-step explanation:

5 0
2 years ago
Select the description that is true of the equation y=-5x+5 .
gladu [14]
In y = mx + b form, the slope is in the m position and the y intercept is in the b position.

y = (m)x + (b)
y = -5  x  + 5.....slope (m position) = -5....y int (b position) = 5
3 0
3 years ago
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