3 years ago

Whats a function rule for -3,-7,-11,-15

Mathematics

1 answer:

nikklg [1K]3 years ago

7 0

Answer:

Subtract 4

Step-by-step explanation:

-3 - 4 = -7

-7 - 4 = -11

-11 - 4 = -15

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A balloon flying at 3000 feet above the ocean measures the angles of depression of each end of an island directly in front of th

saul85 [17]

The length of the island will be given as follows:
tan θ=opposite/adjacent
thus:
tan75.8= 3000/a1
a1=3000tan75.8
a1=11855.885 ft

also:
tan15.6=3000/a2
a2=3000tan15.6
a2=837.62 ft
Thus the length of the island will be:
11855.885-837.615
=11,018.24 ft

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3 years ago

Factor the polynomial expression 16y^4 - 625x^4

Helga [31]

Answer:

(25x2 + 4y2) (5x + 2y) (−5x + 2y)

Step-by-step explanation:

Factor 16y4−625x4

−625x4 + 16y4

=(25x2 + 4y2) (5x + 2y) (−5x + 2y)

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4 years ago

A piano has 88 keys. The ratio of white keys to black keys is 13.9. How many black keys does a piano have?

ladessa [460]

Black keys=b
white keys=w
b+w=88|·9
w:b=13/9⇒9w=13b
9b+9w=792
13b+9b=792
22b=792|:22
b=36 keys
w=88-36
w=52 keys

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3 years ago

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George said if 2 and 4 are factors of a number,then 8 is a factor of the number.Is he correct

Ierofanga [76]

No 8 is the sum (not factor)of the factors 2 and 4

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3 years ago

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What is the range of the reciprocal function ?

melamori03 [73]

Answer:

Step-by-step explanation:

The range is the set of y-values for which the function is defined.

** Attached is the graph of the function

By looking at the graph, we can clearly see that there aren't any y-values that is not permitted in the graph. The function is defined for all y-values. Hence the range is set of all real numbers, or, the range is (-∞, +∞)

Answer choice B is right.

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3 years ago