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dmitriy555 [2]
3 years ago
6

Find an expression which represents the sum of (-X – 7) and (-9x + 6) in simplest terms.

Mathematics
2 answers:
Crank3 years ago
8 0

Answer:

( - x - 7) + ( - 9x + 6) \\  =  - x - 7 - 9x + 6 \\  =  - 10x - 1 \\ thank \: you

Strike441 [17]3 years ago
4 0

Answer:

<u>sum</u><u> </u><u>is</u><u> </u><u>-</u><u>(</u><u>1</u><u>0</u><u>x</u><u> </u><u>+</u><u> </u><u>1</u><u>)</u>

Step-by-step explanation:

( - x - 7) + ( - 9x + 6) \\  = ( - x - 9x) + (6 - 7) \\  =  - 10x - 1 \\  =  - (10x + 1)

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A paper clip is just over 4 cm long. How many paper clips like this can be made from a straight piece of wire 10 meters long?
bixtya [17]

Answer:

25 Paper Clips

Step-by-step explanation:

100cm is equal to 1 meter. So to find the answer you would need to take the whole of the centimeter (100) and divide that by the paper clips length (4).

100/4 = 25

So, to form a straight line 10 meters long you would need 25 paper clips each 4cm long.

5 0
3 years ago
What is the upper quartile, Q3, of the following data set? 54, 53, 46, 60, 62, 70, 43, 67, 48, 65, 55, 38, 52, 56, 41
scZoUnD [109]
The original data set is 
{<span>54, 53, 46, 60, 62, 70, 43, 67, 48, 65, 55, 38, 52, 56, 41}

Sort the data values from smallest to largest to get
</span><span>{38, 41, 43, 46, 48, 52, 53, 54, 55, 56, 60, 62, 65, 67, 70} 
</span>
Now find the middle most value. This is the value in the 8th slot. The first 7 values are below the median. The 8th value is the median itself. The next 7 values are above the median. 

The value in the 8th slot is 54, so this is the median

Divide the sorted data set into two lists. I'll call them L and U 
L = {<span>38, 41, 43, 46, 48, 52, 53}
U = {</span><span>55, 56, 60, 62, 65, 67, 70}
they each have 7 items. The list L is the lower half of the sorted data and U is the upper half. The split happens at the original median (54).

Q3 will be equal to the median of the list U
The median of U = </span>{<span>55, 56, 60, 62, 65, 67, 70} is 62 since it's the middle most value. 

Therefore, Q3 = 62

Answer: 62</span>
4 0
3 years ago
Need help with this math​
Serjik [45]

Answer:

Step-by-step explanation:

100=100 and if it is asking if it is true than yes it is

4 0
3 years ago
Which function is increasingnon the interval (negative infinity, positive infinity)
BlackZzzverrR [31]

Answer:

h(x) = 2^(x) - 1.

Step-by-step explanation:

Let's look at each equation:

f(x) = -3x +7, Well as x increases, since it's multiplication, there are "going to be more" -3's, so it's going to be decreasing.

g(x) = -4(2^x). While 2^x is increasing, because "there are going to be more 2's multiplied by each other" as x increases, it's being multiplied by a negative number, so it's actually going to be decrasing

h(x) = 2^(x) - 1. Here's it's going to be increases as x goes towards infinity because "there are going to be more 2's multiplied by each other", and there isn't any negative sign, while there is a negative 1, it's constant, so the overall value will be increasing

3 0
1 year ago
HELP ME PLZZ, ASAP!!<br><br> In your own words explain what a Right Angle is.
anastassius [24]
A right angle is an angle at 90 degrees
5 0
2 years ago
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