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oksano4ka [1.4K]
3 years ago
6

7. Use mental math 28% of 100

Mathematics
2 answers:
Greeley [361]3 years ago
7 0

Answer:

28/100 x 100= 28

Bingel [31]3 years ago
7 0

Answer:

28% divided by 100 = 28

Brainly please?

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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

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3 years ago
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The percent of increase or decrease i. this irem
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Since the price is going down, it's going to be a percent decrease. Now to find the percent, we divide the "after" price by the "before" price.

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The item had a 75% decrease. 
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The scatterplot models the relationship between the length of a Louisiana alligator and the width of the alligators belly.Which
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c

Step-by-step explanation:

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4x-3=9x-13
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So these functions intersect when x=2.
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