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3 years ago

Determine whether y varies directly with x. If so, find the constant of variation k. 7y = –x

Mathematics

2 answers:

saul85 [17]3 years ago

8 0

Answer: B

Explanation: comment above me LOL

fomenos3 years ago

3 0

Answer:

Step-by-step explanation:

The equation of quantities in direct variation is

y = kx ← k is the constant of variation

Given

7y = - x ( divide both sides by 7 )

y = - $\frac{1}{7}$ x ← in direct variation form

with k = - $\frac{1}{7}$

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ArbitrLikvidat [17]

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4 years ago

What is the approximate value of sin B?

Jlenok [28]

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3 years ago

Read 2 more answers

An experiment consists of tossing a die and then flipping a coin once if the number on the die is even. If the number on the die

Dahasolnce [82]

Answer:

Kindly check attached picture and explanation

Step-by-step explanation:

A.) The tree diagram is attached in the picture below.

B.) Number less than 3 :

Event A:

A = {1HH, 1HT, 1TT, 1TH, 2H, 2T}

C.)

Event B:

B = {1TT, 3TT, 5TT}

D.)

Event C:

C = {1HT, 1TH, 3HT,3TH,5HT, 5TH}

E.)

A' = Elements not in A = number ≥ 3

A' = {3HH,3HT, 3TT, 3TH, 4H, 4T, 5HH, 5HT, 5TH, 5TT, 6H, 6T}

Question f and G are not well formatted ;

h. Check attached picture

I) i. Are A and B mutually exclusive? Are A and C mutually exclusive? Are B and C mutually exclusive?

A and B are mutually exclusive if AnB = ∅

Check :

AnB = {1TT}

Hence, A and B are not mutually exclusive

A and C

AnC = {1HT, 1TH}

A and C are not mutually exclusive.

B and C

BnC = ∅

B and C are mutually exclusive

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2 years ago

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olchik [2.2K]

45/100 × 115 = 51.75...........

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ch4aika [34]

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