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3 years ago

Hugh says that “one less than four times a number” can be written as two expressions: 1 - 4n and 4n - 1. Why is Hugh incorrect?

Mathematics

1 answer:

Basile [38]3 years ago

8 0

Answer:

N times 4-1

Step-by-step explanation:

4 times number is not a squared number where you multiply- the number

by it's self and then you subtract 1

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If P = (5,4), find the image of P under the following rotation. 90° counterclockwise about the origin ([?], [ ])

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Answer: (-4,5)

Step-by-step explanation:

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2 years ago

The formula for electrical energy, P, is P = I2R, where I is current and R is resistance. The formula for I in terms of P and R

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2 years ago

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3 years ago

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Find Distance (4,6) (-4,-3)

vampirchik [111]

Answer:

$\sqrt{145}$

Step-by-step explanation:

The distance formula states that the distance between two points $(a,b)$ and $(c,d)$ is $\sqrt{(a-c)^2+(b-d)^2}$ .

The two points we have are $(4,6)$ and $(-4,-3)$ . Plugging these numbers into the distance formula, we have

$\sqrt{(4-(-4))^2+(6-(-3))^2$ .

Simplifying with order of operations, first using the distributive property, gives

$\sqrt{(4+4)^2+(6+3)^2$ .

Squaring and adding gives

$\sqrt{(4+4)^2+(6+3)^2}=\sqrt{8^2+9^2}\\~~~~~~~~~~~~~~~~~~~~~~~~~~~~=\sqrt{64+81}\\~~~~~~~~~~~~~~~~~~~~~~~~~~~~=\boxed{\sqrt{145}},$

which is the answer in simplest form. This also rounds to about 12.04.

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2 years ago

The second term of an arithmetic sequence is -39. The rule a, = a -1 + 12 can be used to find the next term of the

siniylev [52]

Step-by-step explanation:

the first one is the correct one

a, = -51+12(n-1)

a(2) = -51+12(2-1)=-39

I hope this helps

Im sure from the answer

but I couldnt explain it exactly

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3 years ago

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