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faust18 [17]
3 years ago
13

Does anyone know What is x+7=-7x-8

Mathematics
1 answer:
rjkz [21]3 years ago
3 0

Answer:

x=-\frac{15}{8}

Step-by-step explanation:

x+7=-7x-8

Add 7x to both sides:

8x+7=-8

Subtract 7 from both sides:

8x=-15

Divide both sides by 8:

x=-\frac{15}{8}

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To do so, the research has 100 high school students complete the maze with classical music playing. The mean time for these stud
Marizza181 [45]

Answer:

test statistic, z =  −1.74

Step-by-step explanation:

given data

students n = 100

mean time x  = 41.13 seconds

σ  = 5

we consider µ = 42

solution

we get here The test statistic that is express as

test statistic, z = \frac{x-\mu }{\frac{\sigma }{\sqrt{n}}}      ......................1

put here value and we will get

test statistic, z = \frac{41.13-42}{\frac{5 }{\sqrt{100}}}

test statistic, z =  −1.74

8 0
3 years ago
Find the area of the figure.
kherson [118]

Answer:

area = 164

Step-by-step explanation:

Divide the square into 2 pictures.

; Square 1 = 5×2 = 10

Square 2 = 14×11 (11 from 16-5 )

so, square 2 = 154

all of area = 154+10 = 164

hope it helps ☺️

5 0
3 years ago
Pls help with alg II dying
Vsevolod [243]
What are the options they have given?
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2 years ago
What type of angle pairs are angles a and b?​
natka813 [3]
Supplementary angles. They both add up to equal 180 degrees
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2 years ago
Read 2 more answers
How do you graph a line written in standard form
Sonbull [250]
Ok so standard form is a bit tricky, but I’ll help explain

Here’s and example:

If you have 2x+5y=10 here is how you would solve it

First you divide the x value by what the number is equal to (in our example, 10), and then we get 10/2 is 5. So now we know that

x is equal to five

Keep that in mind. Now we just have to do the same thing for the y value. 5/10 is 2, so you know that

y is equal to two

NOW you put those two together, and graph on the intercepts (the positions on the y and x axis where the lines intercept)

You would put a line on the x axis at 5, and on the y axis at 2

If you have any questions, you can ask
4 0
2 years ago
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