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3 years ago

Which are zeros of the following polynomial?

Mathematics

1 answer:

g100num [7]3 years ago

8 0

Answer:

x = -2/3; x = 5/2.

Step-by-step explanation:

6x 2 - 11x - 10 = 0

Use the 'ac' method:

6 * -10 = -60. We need 2 numbers whose product is -60 and whose sum is -11.

That would be -15 and +4. So we write:

6x^2 - 15x + 4x - 10 = 0 Factor by grouping:

3x(2x - 5) + 2(2x - 5) = 0

(3x + 2)(2x - 5) = 0

x = -2/3; x = 5/2.

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yulyashka [42]

Answer:

Step-by-step explanation:

Berthas dive is 5 times deeper than vernons dive and bertha dived 100ft so

100/5

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3 years ago

Sally begins hiking at an elevation of 224 feet. Then, she descends 131 feet

pshichka [43]

Answer:

The sum −3 is an indication that Sally is 3 feet below her initial position.

Step-by-step explanation:

Represent the distances going up (ascend) as positive and distances going down (descend) as negative so that the sum is:

224 + (-131) + 67+ (-163)

Add by using the commutative property:

224 + 67 + (-131) + (-163) = 291

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3 years ago

Simplify and solve each of the following equations.

inna [77]

Answer:

A. h = 4

B. g = 15

C. b = -6

D. b = 15

Step-by-step explanation:

A. 9h + 8 - 12 = -40

9h - 4 = -40

+ 4 + 4

9h = -36

$\frac{9h}{9} = \frac{-36}{9}$

h = -4

B. 9 + 6g + 1 = 100

10 + 6g = 100

- 10 - 10

6g = 90

$\frac{6g}{6} = \frac{90}{6}$

g = 15

C. -45 = 28 - 13 + 10b

-45 = 15 + 10b

- 15 - 15

-60 = 10b

$\frac{-60}{10} = \frac{10b}{10}$

b = -6

D. 37 = 11 +3b - 19

37 = 3b - 8

+ 8 + 8

45 = 3b

$\frac{45}{3} = \frac{3b}{3}$

15 = b

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3 years ago

Which formula can be used to find the math term of a geometric sequence where the first term is 8 and the common ratio is -3?

kipiarov [429]

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That would be the formula you would use.

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3 years ago

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Katarina [22]

Answer:

Step-by-step explanation:

1, 17, and 20 are very different from the average numbers in this list.

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3 years ago

Read 2 more answers