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aleksley [76]
3 years ago
15

10 POINTS!! PLEASE HELP Identify which functions have complex roots by selecting the function names on the provided coordinate p

lane.
A ?
B ?
C ?
D ?
E ?
Or
F ?

Mathematics
2 answers:
dusya [7]3 years ago
7 0
It's the graphs that don't touch the x-axis have complex roots. Roots are the points where the parabola touches the x-axis. A,C and E all cross/touch the x-axis so they have real roots.


non-real or complex root parabolas are: B, D, F
weeeeeb [17]3 years ago
6 0

Answer:

The functions that have complex roots are functions B; D; and F

Step-by-step explanation: Based on the graph, look for any parabolas, or functions, that appear to not touch the x or y axis.


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Can anybody help me answer this ASAP thank you
Anna11 [10]

Step-by-step explanation:

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So, you need to add \frac{1}{49} on both sides of the quadratic equation.

4 0
3 years ago
What is the percent of increase for a population that changed from 438,000 to 561,000?
BARSIC [14]

New number - original number

561,000 - 438,000 = 123,000.

Increased number divided by the original number

123,000 ÷ 438,000 = 0.28

Multiply by 100

0.28 x 100 = 28%

The percentage increase would be 28%

4 0
3 years ago
A clay block is 12 cm long 6cm wide and 2cm high and the density is 1.25cm3 what is the mass
Ksenya-84 [330]

Answer:

180

Step-by-step explanation:

formula density:

p =  \frac{m}{v}

find volume ..

v = 12 \times 6 \times 2  \\  = 144

subtitute into formula density..

1.25 =  \frac{m}{144}

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6 0
2 years ago
8. A rectangle's sides are measured to be 6.2 cm and 9.3 cm. What is the
Zepler [3.9K]
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7 0
3 years ago
Find how many quarts of 6?% butterfat milk and 3?% butterfat milk should be mixed to yield 30 quarts of 5?% butterfat milk
Mrrafil [7]

Answer:

The 20  quarts are used for 6% butterfat milk and 10 quarts are used for  3% butterfat milk .

Step-by-step explanation:

As given

6% butterfat milk and 3% butterfat milk should be mixed to yield 30 quarts of 5% butterfat milk .

Let us assume that x quarts are used for 6% butterfat milk .

Than (30 - x) quarts are used for 3% butterfat milk .

6% is written in the decimal form

= \frac{6}{100}

= 0.06

3% is written in the decimal form

= \frac{3}{100}

= 0.03

5% is written in the decimal form

= \frac{5}{100}

= 0.05

Than the equation becomes

0.06 × x + (30 - x) × 0.03 = 30 × 0.05

0.06x + 0.9 - 0.03x = 1.5

0.06x  - 0.03x = 1.5 - 0.9

0.03x  = 0.6

x = \frac{0.6}{0.03}

x = 20 quarts for 6% butterfat milk  .

(30 - x ) = (30 - 20) = 10 quarts for 3% butterfat milk  .

Than 20  quarts are used for 6% butterfat milk and 10 quarts are used for  3% butterfat milk .




5 0
3 years ago
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