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Naily [24]
3 years ago
5

Solve the equation by factoring. 5z^2-21z+4=0

Mathematics
2 answers:
bogdanovich [222]3 years ago
6 0
Factorise to (5z-1)(z-4) = 0 
then put 5z-1 = 0 so 5z = 1  z = 1/5
z-4=0 z = 4
z = 1/5 and 4
ehidna [41]3 years ago
6 0
It factors out to (5z-1)(z-4)=0 
The solutions would be z=4 and z=1/5
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Mikey had 104 nickels and 88 dimes she wants to divide the coins into group of each group will have the same number of nickels i
coldgirl [10]

Answer:

8

Step-by-step explanation:

8 can go into 88 and it can also go into 104 too and 8 is the largest number so the answer is 8

3 0
3 years ago
Create the f(x) function based on the table. Your answer should be in function notation. X f(x) - 10 -6 -9 -5 1-8 -4 -7 1-3 5 9​
Minchanka [31]

Answer:

f(x) = x + 4

Step-by-step explanation:

First create an equation in slope-intercept form, y = mx + b. To do this, find the rate of change or slope (m), and the y-intercept (b).

Using two pairs, (-7, -3) and (-8, -4),

slope (m) = \frac{y_2 - y_1}{x_2 - x_1} = \frac{-4 -(-3)}{-8 -(-7)} = \frac{-1}{-1} = 1

m = 1

To find b, substitute m = 1, x = -7 and y = -3 into y = mx + b.

Thus:

-3 = (1)(-7) + b

-3 = -7 + b

-3 + 7 = b

4 = b

b = 4.

Replace y with f(x), m with 1 and b with 4 in y = mx + b.

The function would be:

f(x) = x + 4

6 0
3 years ago
Pls answer this with work. its in the picture
defon

Answer:

180 pages

Step-by-step explanation:

First you find the slope of the line assuming this is linear. it's just the Rise over Run. so go up 4 over 2 which means the slope is going up two. so do 90 times 2 which is 180. That means Jeff read 180 pages.

3 0
3 years ago
Find angle GEH, which is located inside inscribed hexagon ABCDEF.
Zinaida [17]

Answer:

60°

Step-by-step explanation:

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7 0
3 years ago
Help please I would give more pints but I dont have any. Who ever answers first get brainliest.
love history [14]
<span>4x(x) + 3(2x) and 4x2 + 6x  => 4x^2 + 6x and 4x^2 + 6x
5(3x) - 4(3x) and 3x  => 15x-12x=3x and 3x
4(3a) - 2(4a) and 4a2 => 12a-8a=4a and 4a^2
3(3a) + a(3a) and 3a2 + 9a  => 9a+3a^2 and 9a + 3a^2

Can you spot the one which is different?


</span>
5 0
4 years ago
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