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Molodets [167]
2 years ago
6

Solve x2 + 14x = -40 by completing the square.

Mathematics
1 answer:
zalisa [80]2 years ago
6 0

Answer: C x=-4 and -10

Step-by-step explanation:

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Find all the powers of 4 in the range 4 Through 1000
Anettt [7]
(4⁰  =  1  too small)

4¹  =  4

4² = 16

4³ = 64

4⁴ = 256

(4⁵ = 1,024  too big)

7 0
3 years ago
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Bryce randomly chooses a card from a standard deck of 52 containing 13 of each suit. He records the suit of each card in the tal
Nikolay [14]

Answer:

52 cards  / 4 suits  = 13 cards of each suit.

Theoretically picking a heart would be 13/52 = 1/4 probability.

Experimentally she picked 15 hearts out of 80 total tries. for a 15/80 = 3/16 probability, which is less than the theoretical probability.

1/4 - 3/16 = 1/16

The answer is A.

Step-by-step explanation:

The right answer is A - The theoretical probability of choosing a heart is StartFraction 1 over 16 EndFraction greater than the experimental probability of choosing a heart

3 0
3 years ago
Help anyone <br><br> pic is provided!!
AfilCa [17]

Answer:

True, because they are under 180 degrees

"Supplementary angles are two angles with a sum of 18 0 ∘ 180 ^\circ 180∘ . A common case is when they lie on the same side of a straight line."

7 0
2 years ago
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What percent of $900 equals 810?? Show what you did!!
KIM [24]

Answer:

x% of $900=$810

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3 years ago
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WHat is the best method for this system?
aksik [14]

Answer:

Elimination method

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We have a choice to eliminate the y or x:

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So now we double the second equation to make the co efficient of x the same:

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Now we subtract both equations to eliminate the x's:

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3x + 6 =12

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3x + 6 -6 = 12 -6

Simplify:

3x = 6

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Simplify:

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5 0
2 years ago
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