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jonny [76]
3 years ago
8

Complete the square for each expression as a binomial square X2-4x +

Mathematics
1 answer:
Furkat [3]3 years ago
5 0
4. 

You can get this by taking half of the middle number and squaring it. 
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Solve for x<br><br> 15x^2+16x= -4
Klio2033 [76]
15x²+16x+4 =0      (ax² +bx +c=0)

Δ = b²-4ac =256 - 4×15×4 =16

x1 = (-b+√Δ) / 2a = (-16+√16) / 30 =( -16+4) / 30 = -12/30 = - 2/5
x2 = (-b -√Δ) / 2a = (-16 -√16) / 30 = (-16 -4) /30 = -20/30 = -2/3
4 0
3 years ago
Read 2 more answers
What is the value of h when the function is converted to vertex form?
elena-s [515]

Answer: h=7

Step-by-step explanation:

By definition the function in vertex form is:

 f(x)=a(x-h)^{2}+k

Where (h,k) is the vertex of the parabola.

You must group the terms that contain the same variable in the function:

f(x)=(x^{2}-14x)+29

Complete the square as following:

f(x)=(x^{2}-14x+49)+29-49

Now you must rewrite it as following:

 f(x)=(x-7)^{2}-20

Then:

h=7

4 0
2 years ago
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f left parenthesis x right parenthesis equals 25 comma 000 left parenthesis 1 plus.025 right parenthesis to the power of x?
Oduvanchick [21]

Answer:

f(x) = 25,000 ( 1 + 0.025 )ˣ

Step-by-step explanation:

Given word problem becomes

f(x) = 25,000 ( 1 + 0.025 )ˣ

6 0
2 years ago
Need help plssssss fast hurry plsss
Bond [772]

Answer:

50 ft2

Step-by-step explanation:

im not sure if this is right but this is what i got when i worked it out

5 0
3 years ago
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If 5(x + 7)= -3, then 5x +35= -3
tensa zangetsu [6.8K]
= 5x + 35 = -3
- 35 = -35
5x = -38
/ 5 = / 5
x = -7.6
8 0
3 years ago
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