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Sphinxa [80]
3 years ago
9

Find the points of intersection of the lines y= 4x + 1 and y= -2 x + 4

Mathematics
1 answer:
Novosadov [1.4K]3 years ago
7 0

Answer:

use desmos. It really helps!

Step-by-step explanation:

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Find all the real zeros of <br><br> f(x)=3x^3-9x^2+3x-9 <br><br><br> Can someone help me please
vaieri [72.5K]

Answer:

x=0,3

Step-by-step explanation:

start by dividing every term by 3

x^3-3x^2+x-3

group into 2 terms

(x^3-3x^2)+(x-3)

simplify as much as you can

x^2(x-3)+(x-3)

combine terms

(x^2)(x-3)

x=3, 0

4 0
3 years ago
Jessica owns 1/8 of a company worth $56,000. What is the value of
rosijanka [135]
7000

1/8th in percentage form is 12.5%
12.5% of 56000 is 7000
8 0
3 years ago
A hiker walked 12.8 miles from 9:00 am to noon. He walked an additional 17.2 miles from 1:00 pm. What is his average rate for th
Inessa [10]
3 miles per hour. Theres 4 hours between 9 am and 12 and another 6 from 1to 6.so ten hours. then 12.8 plus 17.8 thats 30 then 30 divided by ten is 3 miles per hour. Your welcome :)
3 0
3 years ago
Read 2 more answers
What is the mean absolute deviation for the data set? {10, 15, 18, 20, 24}
Arlecino [84]

Answer:

3.92

To find the mean absolute deviation of the data, start by finding the mean of the data set.

Find the sum of the data values, and divide the sum by the number of data values.

Find the absolute value of the difference between each data value and the mean: |data value – mean|.

Find the sum of the absolute values of the differences.

Divide the sum of the absolute values of the differences by the number of data values.

7 0
3 years ago
Read 2 more answers
Find two numbers whose sum is 64 and whose difference is 42
vovangra [49]
These numbers are  "a"  and "b".  
Sum is 64,  so  a+b=64
Difference  is 42  so  a-b=42
So you've got:
+\begin{cases} a+b=64 \\ a-b=42\end{cases} \\ \overline{, \quad2a \quad \ = \ 106} \qquad /:2 \\ a=53
When a+b=64 and a=53  you've got:
53+b=64
b=11

So these numbers is 53 and 11. 

4 0
3 years ago
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