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Sonbull [250]
3 years ago
7

HELP ME PLEASE I NEED TO FINISH ALGEBRA TODAY ITS URGENT I BEG YOU I DONT HAVE TIME

Mathematics
1 answer:
WARRIOR [948]3 years ago
4 0
#66 Dimensions of matrix: The dimensions of a matrix are
[number of rows (across) x number of columns (up and down)]
There is 1 row and 4 columns, hence the dimensions of [1 x 4]

#71: use factor/label conversion method.
480 minutes    1 hour            480 hours        8 hours
                     * --------------  = --------------  = 
                       60 minutes      60 minutes

#72: common difference is how you get from one number to the next in the sequence. So from 42 to 38, you subtract 4, and the pattern is subtract 4 for the whole sequence. So the common difference <em></em>is -4

#38: The midpoint is the middle of the two coordinates, so imagine when used to find mean by drawing a number line like 1 to 10 and the mean would be 5. What did you do? You added 1 and 10 and divided by 2.
You can use the same method for finding midpoints on the coordinate plane.
The formula for midpoint is <span><span>(<span><span>x1+x</span>2</span>)</span>,<span>(<span><span>y1+y</span>2</span>). So it's (5 + 2) , (8 + 7) which equals (7, 15).

#35: This is the same 3* x^(9*1/5) = 3*x^9/5
Remember square root of a number is the same as that number to the 1/2, and the same with all other roots. The fifth root of x is the same as x to the power of 1/5

#36: This is the same as 36*( x^5*3/2 * y^3*3/2), since you can put the power to each of the numbers almost like the distributive property.
= 36 * (x^15/2 * y^9/2)

Well #20 is <em>extremely</em><em> </em>easy. The solutions are anything that is shaded in the blue

The rightmost question is the same thing as #20. Anything not shaded is not a solution.

</span></span>
#64: Just like you learned in elementary school, the median is the middle number. The middle number is 10<span>

</span>
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Solve |3k-2|=2|k+12|
Stella [2.4K]

Answer:

k = 26   or   k = -\dfrac{22}{5}

Step-by-step explanation:

|3k - 2| = 2|k + 12|

\dfrac{|3k - 2|}{|k + 12|} = 2

|\dfrac{3k - 2}{k + 12}| = 2

3k - 2 = 2(k + 12)   or   3k - 2 = -2(k + 12)

3k - 2 = 2k + 24   or   3k - 2 = -2k - 24

k = 26   or   5k = -22

k = 26   or   k = -\dfrac{22}{5}

7 0
3 years ago
Plzzzzz teach this.....<br>I wiil Mark as brainlist answer if correct​
GuDViN [60]
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7 0
2 years ago
What is the y intercept of f(x)=(1/2)*
9966 [12]

Answer:

B. (0,0)

Step-by-step explanation:

The y-intercept of the equation f(x) = 1/2x lies on the y-axis.

This means we need to set x = 0 and solve for y

1/2(0) = 0

Therefore, (0,0) is the y-intercept of this equation.

5 0
3 years ago
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777dan777 [17]

Answer:

A: positive B: Negative C: Positive

Step-by-step explanation:

4 0
3 years ago
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Solve the system of equations - 8x + 3y = -17 and 3x - y = 7 by combining the<br> equlations.
NeTakaya

Given :

Two equations :

-8x + 3y = -17  ....1)

3x - y = 7        ....2)

To Find :

The solution of the system.

Solution :

Multiplying equation 2) by 3 and adding with equation 1), we get :

(-8x + 3y) + 3(3x - y) = -17 + 21

x = 4

Putting above value of x equation 2) we get :

12 - y = 7

y = 5

Therefore, solution of system is ( 4,5 ).

8 0
3 years ago
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