I need help asap!! before 2:25 please and thank youu!!

Mathematics

1 answer:

Lena [83]3 years ago

7 0

Answer:

B. (2, -1)

Step-by-step explanation:

Take tracing paper and mark the origin and point m. Rotate 90 degrees clockwise around the origin. Point m will be at (2, -1).

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2x+y/2=-1 in slope intercept form.

cricket20 [7]

Answer:

m=-2

Step-by-step explanation:

You have to put the equation into y=mx+b form

which would be y=-2x-2

First you would divide 2x+y by 2 so that x+y/2=-1

subtract x on both sides y/2=-x-1

multiply 2 to get y=2(-x-1) simplify y=-2x-2

m=-2

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3 years ago

Write five numbers that round up to 600

sveta [45]

599.99
599.98
599.97
599.96
599.95

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3 years ago

alecu a imprumutat de la un prieten romanul lui james verne ,,Ocolul Pamintului" in 80 de zile. Daca ar citi zilnic 14 pagini, a

ycow [4]

Salut!
Alecu ar citi in 12 zile 14 x 12 = 168 de pagini (atatea pagini are cartea);
O saptamana are 7 zile, asa ca 168 ÷ 7 = 24 de pagini trebuie sa citeasca zilnic Alecu ca sa inapoieze cartea la sfarsitul celor 7 zile;
Succes!

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3 years ago

2 cards are chosen from a deck of cards. The first card is replaced before choosing the second card. What is the probability tha

fgiga [73]

Answer:

The probability that the first card chosen is club and second card chosen is of heart is .

Step-by-step explanation:

Total number of cards in the deck is 52 (total number of cases).

Probability of an event E can be formulated as:

$P(E) = \dfrac{\text{Number of favorable cases}}{\text {Total number of cases}}$

For event A, number of cards of type club = 13 (favorable cases)

So,

$P(A) = \dfrac{13}{52} \\\Rightarrow P(A) = \dfrac{1}{4}$

For event B, number of cards of type heart = 13 (favorable cases)

So,

$P(B) = \dfrac{13}{52} \\\Rightarrow P(B) = \dfrac{1}{4}$

It is given that card is replaced before choosing the second card.

These events A and B are independent events, happening of one event does not effect the happening of other. And probability of both happening together can be found as following:

$P(A \cap B) = P(A) \times P(B)$