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gogolik [260]
3 years ago
10

Please help. I will mark brainleist

Mathematics
1 answer:
Kitty [74]3 years ago
7 0
Can I see the options?
You might be interested in
Find the number of real zeros of
Amiraneli [1.4K]

Answer:

B

Step-by-step explanation:

Using the determinant to determine the type of zeros

Given

f(x) = ax² + bx + c ( a ≠ 0 ) ← in standard form, then the discriminant is

Δ = b² - 4ac

• If b² - 4ac > 0 then 2 real and distinct zeros

• If b² - 4ac = 0 then 2 real and equal zeros

• If b² - 4ac < 0 then 2 complex zeros

Given

f(x) = (x - 1)² + 1 ← expand factor and simplify

     = x² - 2x + 1 + 1

    = x² - 2x + 2 ← in standard form

with a = 1, b = - 2, c = 2, then

b² - 4ac = (- 2)² - (4 × 1 × 2) = 4 - 8 = - 4

Since b² - 4ac < 0 then the zeros are complex

Thus P(x) has no real zeros

6 0
3 years ago
What is the value of x in the equation −6 + x = −2? <br><br><br> 8<br><br> 4<br><br> −4<br><br> −8
Ulleksa [173]

Answer:

4

Step-by-step explanation:

-6 + x = -2

add 6 to each side

-6 +6 +x = -2 +6

x = 4


3 0
3 years ago
Bruce reads 3fourths hour each night.how long will he read in 4 nights
OlgaM077 [116]
3 fourths of an hour is : (3/4)
(3/4)*4=3 hours

hope this helps!
5 0
3 years ago
Need help with finding out what X is?
Marianna [84]

Answer:


Step-by-step explanation:

x + 4 = 2x + 1

-x        -x

4 = 1x + 1

-1          -1

3 = 1x

--    --

1      1

3 = x

Check:

3 + 4 = 2(3) + 1

7 = 6 + 1

7 = 7

7 0
3 years ago
Solve for x and y y+8=-4(x+7)
Sedaia [141]
Because you can't solve for two variables at once, you can guess and trial/error.
You can also give x or y any value, and then solve for the opposite variable.

x = 0
y = -36
for example. There are more solutions.

   y + 8 = -4(x+7)
-36 + 8 = -4(0+7)
      -28 = 0 - 28
      -28 = -28
6 0
3 years ago
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