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Fudgin [204]
2 years ago
13

-3 x 2(4-18) + 8 = Solve the equation

Mathematics
2 answers:
d1i1m1o1n [39]2 years ago
8 0

According to PEMDAS, solve the parentheses first.

-3 x 8-36+8=?

-24-36+8=?

-60+8=?

-52 is your answer

Karolina [17]2 years ago
6 0

we are given

-3 x 2(4-18) + 8 =

Firstly , we will solve inside parenthesis

-3 *2(4-18) + 8 =

-3 *2*-14 + 8 =

now, we can multiply

-6*-14 + 8 =

84 + 8 =

=92............Answer

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When Richards solved the equation 2(x - 5) = 56 + 6(x - 5), he used the distributive property in step one to write an equivalent
satela [25.4K]

The equivalent equation after applying distributive property will be:

(2*x) - (2*5) = 56 + (6*x) - (6*5)

Further explanation:

Distributive property states that the number is distributed to the sum or difference it is being multiplied to i.e.

a(b+c) = a*b + a*c

So the given equation is:

2(x - 5) = 56 + 6(x - 5)

2 will be distributed to x-5 and 6 will be distributed to x-5

The equivalent equation will be:

(2*x) - (2*5) = 56 + (6*x) - (6*5)\\Simplifying\\2x-10 = 56+6x-30\\2x-6x = 56-30+10\\-4x = 36\\x=-9

Keywords: Equations, Distributive property

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  • brainly.com/question/5639299
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4 0
3 years ago
Every square meter of solar paneling produces 0.2 kilowatts of electricity. Which of the following models this situation?
Cloud [144]
The right answer for the question that is being asked and shown above is that: "B. linear function with a positive rate of change." Every square meter of solar paneling produces 0.2 kilowatts of electricity. the model for this situation is that <span>B. linear function with a positive rate of change</span>
5 0
2 years ago
Read 2 more answers
That’s the number is written in standard scientific notation?
Nata [24]

Option D: 3.47*10^-7 is the correct answer

Step-by-step explanation:

In order to determine the number written in standard scientific notation, first of all we have to understand how the scientific numbers are written

the scientific numbers are written in the form of:

a*10^n

Here

a is a number between 1 and 10 while the value of n can be only integer (positive or negative)

so,

In the given options:

Option A has a number larger than 10 in place of a so it is not in standard notation

Option B has a number less than 1 in place of a  so it is also not in standard notation

Option C has a number larger than 10 in place of a so it is not in standard notation

Option D is in standard scientific notation as 1<3.47<10 and the power of 10 is integer

Hence,

Option D: 3.47*10^-7 is the correct answer

Keywords: Scientific notation, exponents

Learn more about scientific notation at:

  • brainly.com/question/846474
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6 0
2 years ago
From previous polls, it is believed that 66% of likely voters prefer the incumbent. A new poll of 500 likely voters will be cond
Vladimir79 [104]

Answer:

The mean and standard deviation of the number preferring the incumbent is mean = 330, standard deviation = 10.59.

Step-by-step explanation:

We are given that From previous polls, it is believed that 66% of likely voters prefer the incumbent.

A new poll of 500 likely voters will be conducted. In the new poll the proportion favoring the incumbent has not changed.

Let p = probability of voters preferring the incumbent = 66%

n = number of voters polled = 500

<u>So, the mean of the number preferring the incumbent is given by;</u>

         Mean = n \times p = 500 \times 0.66

                                = 330 voters

<u>And, standard deviation of the number preferring the incumbent is given by;</u>

          Variance =  n \times p\times (1-p)  

                          =  500 \times 0.66 \times (1-0.66)

                          =  112.2

So, Standard deviation =  \sqrt{Variance}

                                       = \sqrt{112.2}  = 10.59

7 0
2 years ago
Solve the inequalities and show your work:
stepan [7]

Answer:

x<4

Step-by-step explanation:

x/2-3<-1

Add 3 to each side

x/2-3+3<-1+3

x/2 < 2

Multiply each side by 2

x/2*2 <2*2

x<4

5 0
3 years ago
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