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Tpy6a [65]
3 years ago
8

Someone help!!! What is 4/5+7/8

Mathematics
2 answers:
noname [10]3 years ago
5 0
Im pretty sure the answer is 1.675
Arisa [49]3 years ago
5 0
1.675 or 1 27/40 ...............
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[ 1 ] check whether -3 and 3 are the zeroes of the polynomial x² - 9.
rusak2 [61]

Answer:

<h3>#1</h3>
  • x² - 9 = 0
  • x² = 9
  • x = ± √9
  • x = ± 3

Yes, -3 and 3 are zeroes of this polynomial

<h3>#2</h3>

<em>See attached graphs</em>

Zero's of a polynomial are the intersection of the graph with the x-axis.

They include coordinates as (x, 0), so the x-coordinates are zero's.

The attached shows the zero's.

<h3>#3</h3>

<em>See attached graphs</em>

Zero's of each polynomial are reflected in the graphs.

  • () y = x² - x - 6 has zeros x = -2 and x = 3
  • (ii) y = 6 - x - x² has zero's x = -3, x = 2

5 0
3 years ago
Write an equation that you can use to solve for x. Enter your answer in the box. ​
N76 [4]
The answer is X=27 degrees

Steps-
90-63=27
5 0
3 years ago
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densk [106]
If only this was in english then i would be able to understand and possibly help you. right now i don’t understand spanish
6 0
3 years ago
A student said that x = 4 was not a solution to the question 3(x -6) = -8
Morgarella [4.7K]

Answer:

Step-by-step explanation:

3 (4 -6) = -8 is correct.  The next step is to combine 4 and -6, obtaining

3(-2)

and this 3(-2) should equal -6, which is not the same as -8.

3(4 - 6) = 12 - 18, which differs from the student's solution.  This is the reason for the wrong answer.

6 0
3 years ago
Jena and matt, working together, can mow the lawn in 44 hours. working alone, matt takes four times as long as jena. how long do
madam [21]
Let jena take x hours to mow the lawn on her own.-  then we can write the equation 

1/x + 1/4x = 1 / 44

44 + 11 = x  

x = 55

x takes 55 hours to mow the lawn
6 0
3 years ago
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