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2 years ago

Which of the following shows the correct steps in solving the equation? -8x + 3 = 19

Mathematics

2 answers:

Firlakuza [10]2 years ago

5 0

Answer:

-8x=19-3

-8x=16

x= 16/-8

x=-2

Step-by-step explanation:

Mashutka [201]2 years ago

5 0

Answer:

X=-2 (The steps are shown below.

Step-by-step explanation:

-8x+3=19

-3 -3

-8x=16

-8x/-8=16/-8

x=-2

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mezya [45]

Answer:

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Step-by-step explanation:

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3 years ago

A building is 200ft long and 140 ft wide a 1/500 model is built of the building how long and how wide is the model?

Katena32 [7]

Let's start with the length. All you need to do is multiply is by 1/500.
You could also find the decimal equivalent to 1/500.
1/500= .002
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The width:
.002×140=.28
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2 years ago

Do integers have to be a set of positive and negative numbers?

AVprozaik [17]

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3 years ago

The roots of the function f(x) = x2 – 2x – 3 are shown. what is the missing number? x = –1 and x =

andrey2020 [161]

we have

$f(x)=x^{2}-2x-3$

Find the roots

Equate the function to zero

$x^{2}-2x-3=0$

Group terms that contain the same variable, and move the constant to the opposite side of the equation

$x^{2}-2x=3$

Complete the square. Remember to balance the equation by adding the same constants to each side.

$x^{2}-2x+1=3+1$

$x^{2}-2x+1=4$

Rewrite as perfect squares

$(x-1)^{2}=4$

Square root both sides

$(x-1)=(+/-)2$

$x=1(+/-)2$

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the answer is

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3 years ago

Read 2 more answers

Colin surveyed 12 teachers at school to determine how much each person budgets for lunch. He records his results in the table. W

zmey [24]

Answer:

As mean and median are equal, so the data will be in normal distribution in shape of a symmetrical "bell curve".

Step-by-step explanation:

The given data: 10 5 8 10 12 6 8 10 15 6 12 18

Mean is the simple average of all data. As, there are total 12 data, so the Mean will be: $\frac{10+5+8+10+12+6+8+10+15+6+12+18}{12}= \frac{120}{12}=10$

For finding the Median, first we need to rearrange the data according to the numerical order and then identify the middle value. So........

5 6 6 8 8 10 10 10 12 12 15 18

Here the middle values are 10 and 10. So, the median will be the average of those two middle values.

Thus, Median $=\frac{10+10}{2}=\frac{20}{2}=10$

We can see that, the relationship between the mean and the median is "they are equal". So, the data will be in normal distribution and the shape will be symmetrical "bell curve".

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2 years ago

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