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3 years ago

Let u = <-3, -5>, v = <-3, 1>. Find u + v.

Mathematics

1 answer:

Gemiola [76]3 years ago

3 0

U + v = {-3 + -3, -5 + 1} = {-6 , -4}

u + v = {-6 , -4}

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Invention cost three dollars for a pack of eight. Laura gives the cashier $20 to buy inventions and gets $11 and change. How man

brilliants [131]

Laura buys 3 packs of inventions.

20-11=9
(amount given-change=actual cost)

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(actual cost ÷ dollars per pack= number of packs bought)

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3 years ago

The square of a real number c is 8 less than the square of 6 show equation

juin [17]

Answer:

c^2 = 6^2 -8

Step-by-step explanation:

The square of c is c^2; the square of 6 is 6^2. for the former to be 8 less than the latter, we must have ...

c^2 = 6^2 -8

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3 years ago

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Yakvenalex [24]

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3 years ago

Simplify 3x+5y-x+2y please

V125BC [204]

Answer:

2x+7y

Step-by-step explanation:

3x+5y-x+2y =

3x-x = 2x

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3x+5y-x+2y = 2x+7y

5 0

3 years ago

What is the sum of the arithmetic series

docker41 [41]

Answer:

$S_ {12} = 192$

Step-by-step explanation:

The nth term of the given arithmetic sequence is

$U_n = 3 + 2n$

The first term of this series is:

$U_1 = 3 + 2(1) = 5$

The last term of this series is when

$n = 12$

$U_ {12}= 3 + 2(12)$

$U_ {12}= 3 + 24 = 27$

The sum of the first n terms of an arithmetic series when the first an last term is known is given by:

$S_n = \frac{n}{2}(a + l)$

Where a=5 is the first term and l=27 is the last term.

$S_ {12} = \frac{12}{2}(5 + 27)$

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6 0

3 years ago