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Nikitich [7]
2 years ago
9

X 2 −3x−10=x, squared, minus, 3, x, minus, 10, equals

Mathematics
1 answer:
Andreyy892 years ago
5 0

Step-by-step explanation:

my brain couldn't comprehend can u write it down for me real quick like the way it's supposed to be written please

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A table and 8 chairs weigh 235.68 pounds in total. If a table weighs 157.84 pounds, how many ponds do the chairs weigh? Express
Anna [14]
The chairs all together weigh 77.84 pounds .I know this because I subtracted the total weight from the tables weight ,so the left over wieght is 77.84 which is how much all of the chairs weigh together .EACH chair weighs 9.615 becuase I divide the weigh of the chairs altogether by how many chairs there are . 77.84÷ 8 chairs
5 0
3 years ago
Let f(x) = 1/x+2 and g (x) = 1/x-3. Find (f/g) (x). Assume all appropriate restrictions to the domain. help!!!!
DanielleElmas [232]

Answer:(f/g)(x)=(1+2x)/(1-3x) where x<>0

Step-by-step explanation:

f(x)= 1/x+2= (1+2x)/x  ,   x<>0

g(x)=1/x-3=(1-3x)/x    , x<>0

=>f(x)/g(x)= (1+2x)/(1-3x)    ,  x<>0

3 0
3 years ago
The line plot shows the number of letters in the last name of 12 children.
Ainat [17]

Answer:

The mode is 9 letters: True

The median is 7.5 letters: True

The mean is 7 letters: False

The graph is skewed right with an outlier of 2: False

Step-by-step explanation:

1) The mode is 9 letters. (True)

The mode is the value that shows up the most. 9 letters shows up the most as the length of a child's last name.

2) The median is 7.5 letters. (True)

The median is one of the middle points of a data set. This can be found by writing out all of the results from least to greatest, and crossing out each number starting from the ends.

2, 6, 6, 7, 7, 7, 8, 8, 9, 9, 9, 9

Once you meet in the middle, you should be left with 7 and 8. In this case, we find the mean of the two numbers, which is 7.5. (In cases where the data set has an odd amount - if there were 13 children instead of 12), you'd just use the middle piece of data.

3) The mean is 7 letters. (False)

The mean is also a middle point of a data set. However, this one is different. The mean can be found by adding up all of the numbers in the data set (2+6+6+7+7+7+8+8+9+9+9+9) and then dividing that number by the amount of numbers are in the data set. Setting this up as an expression would look like: \frac{2+6+6+7+7+7+8+8+9+9+9+9}{12}. By plugging this into a calculator you'd get 7.25 instead of just 7.

4) The graph is skewed right with an outlier of 2.

Although the outlier of 2 part of the statement is correct, the graph is not skewed right; it is skewed left.

5 0
1 year ago
Please help PLEASE HELP
alexdok [17]

Answer:

15. 17.5 ft

16. XZY ~ RPQ only

Step-by-step explanation:

15. The figure shows you the height of the object is 5/6 the length of its shadow. Then the height of the tree will be (5/6)·21 ft = 17 1/2 ft.

__

16. Triangles are similar when they have all the same angles. In the given triangles, you have ...

angle X = angle R = 32° . . . . (no corresponding angle in the third triangle)

angle Z = angle P = 64°

angle Y = angle Q = 84°

The triangle vertices need to be named in the order in which they correspond, so we can say, for example, ...

triangle XZY ~ triangle RPQ

5 0
3 years ago
Nina operate the dog walking service she charges a flat fee for $15 plus $5 per hour. which equation represents this liner relat
ycow [4]

Answer: I think it’s the first one

Step-by-step explanation:

It says per hour and 15 bucks plus 5 bucks PERhour so you would have to be multiplying I did a question like this long ago hope you get it right

3 0
3 years ago
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