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Vilka [71]
3 years ago
6

Can someone please help me​

Mathematics
1 answer:
ser-zykov [4K]3 years ago
5 0
The answer is - xsquared+4x-4 or -x2 the 2 is squared+4x-4
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Hat is the equation of the quadratic function with a vertex at (2,–25) and an x-intercept at (7,0)?
Novosadov [1.4K]

Answer:

y = x² - 4x - 21

Step-by-step explanation:

The equation of a parabola in vertex form is

y = a(x - h)² + k

where (h, k) are the coordinates of the vertex and a is a multiplier

Here (h, k) = (2, - 25), thus

y = a(x - 2)² - 25

To find a substitute (7, 0) into the equation

0 = a(7 - 2)² - 25 = a(5)² - 25 = 25a - 25 ( add 25 from both sides )

25a = 25 ( divide both sides by 25

a = 1, thus

y = (x - 2)² - 25 ← in vertex form

Expand and simplify

y = x² - 4x + 4 - 25

y = x² - 4x - 21 ← in standard form

8 0
3 years ago
Please help me id you want BRIANLEIST!!! :)) ty!!!
Bad White [126]

Answer:

5/3

Step-by-step explanation:

4 × x = (6×3+2)/3

---> 4x = 20/3

----> x = 20/12

----> x=5/3

Hope it helps

7 0
3 years ago
Read 2 more answers
Divide. (4x^3+2x+1)÷(x+1)
stiks02 [169]

(4x^3+2x+1)\div(x+1)=4x^2-4x+6-\dfrac{5}{x+1}

8 0
3 years ago
40% is what number is 82?
Licemer1 [7]
32.8 because.40•82=32.8
8 0
3 years ago
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Please help me with this it's my last question on my homework :)
Levart [38]
The answer your looking for is 60ft
5 0
3 years ago
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