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Natali [406]
3 years ago
11

Wjat are the x intercepts if y=x squared minus 100​

Mathematics
1 answer:
Effectus [21]3 years ago
3 0

Answer:

x = ± 10

Step-by-step explanation:

Given

y = x² - 100 ← a difference of squares , that is

y = x² - 10² = (x - 10)(x + 10)

To find the x- intercepts let y = 0 , that is

(x - 10)(x + 10) = 0

Equate each factor to zero and solve for x

x - 10 = 0 ⇒ x = 10

x + 10 = 0 ⇒ x = - 10

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4.7 x 6.8. help pls​
anzhelika [568]

Answer:

The answer is: 31.96

Step-by-step explanation:

Hope this helps! Have a nice day! Please consider making me Brainliest!

Steps: Line up the equations then solve. 4*6 is 24 and 7*8 is 56 then round, tada!

4.7 x

<u>6.8</u>

<u>24.56</u>

<u>Round: 31.96</u>

8 0
4 years ago
Read 2 more answers
Jana earns $25 per week for mowing the lawn and deposits the money into her savings account. The amount of money in Jana’s accou
Tems11 [23]

Answer: y-int = That means the amount of money in Jana's account before she began mowing lawns.

Step-by-step explanation:

The y-intercept represents the initial money that Jana has in his account. Step-by-step explanation: Given the equation of line is . Also, Jana earns $ per week. And is the number of weeks she has been working. If we plug week in the equation . It will give us the y-intercept. That means the amount of money in Jana's account before she began mowing lawns. The y-intercept represents the initial money that Jana has in his account.  

5 0
3 years ago
It is your first semester at college and you take out a $5000 loan and in order to pay off that loan by the end of the semester
kakasveta [241]

Answer:

5000-1250x

Step-by-step explanation:

All you need to do is find the amount of money you get paid a month and use variable x to represent the months and then subtract that from the money you need to pay off.

8 0
3 years ago
The given line passes through the points (-1,-1) and (4.1).
ira [324]

Answer:

(-1,-1) and (4.1).

                                     1+1

slope of the line: m= ------- = 2/5

                                     4+1

the slope of the perpendicular line:  -5/2  and   point  (-1,3)

(y-3) = -5/2(x+1)

6 0
3 years ago
Find the 61st term of -12, -28, -44,
Citrus2011 [14]

Answer:

a_{61}=-972

Step-by-step explanation:

<u>Arithmetic Sequences</u>

The arithmetic sequences are identified because any term n is obtained by adding or subtracting a fixed number to the previous term. That number is called the common difference.

The equation to calculate the nth term of an arithmetic sequence is:

a_n=a_1+(n-1)r

Where

an = nth term

a1 = first term

r   = common difference

n  = number of the term

We are given the first terms of a sequence:

-12, -28, -44,...

Find the common difference by subtracting consecutive terms:

r = -28 - (-12) = -16

r = -44 - (-28) = -16

The first term is a1 = -12. Now we calculate the term n=61:

a_{61}=-12+(61-1)(-16)

a_{61}=-12-60*16=-12-960

\mathbf{a_{61}=-972}

6 0
3 years ago
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