3 years ago

Justine runs 250 yards in 50 seconds.

Mathematics

1 answer:

DaniilM [7]3 years ago

7 0

Answer:

a: 300 Yards

b: 10 seconds

c: 5 Yards per second

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Answer:

I’m not sure :/

Step-by-step explanation:

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3 years ago

I need help asap plz

mylen [45]

The answer is: 64

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3 years ago

Y=3x+4<br> x+4y=-10<br> solve for substitution

maria [59]

Y=3x+4.....eq.(i) x+4y=-10....(eq.ii) putting value of y in eq.(ii),we get, x+4(3x+4)=-10 or x+12x+16=-10 or,13x=-10+16 or,13x=6 ●#x=6÷13 putting value if x in eq.(i),we get y=3(6÷13)+4 or,y=18÷13+4 or,y=(18+52)÷13 ●#y=70÷13

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4 years ago

For all parts of this problem, P(Ā)=0.75 , P(B)=0.3 , and P(B∣A)=0.15

Marianna [84]

12. I assume $\bar A$ denotes the complement of A, so

$P(A) = 1 - P(\bar A) = 0.25$

Then by definition of conditional probability,

$P(B\mid A) = \dfrac{P(A\cap B)}{P(A)} = \dfrac{P(A\cap B)}{0.25} = 0.15 \\\\ \implies \boxed{P(A\cap B) = 0.0375}$

13. By inclusion/exclusion,

$P(A\cup B) = P(A) + P(B) - P(A\cap B) = 0.25 + 0.3 - 0.0375 \\\\ \implies \boxed{P(A\cup B) = 0.5125}$

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2 years ago

Triangle GHJ and its image, triangle G’H’J’, are graphed on the coordinate grid below. On a coordinate plane, triangle G H J has

Ipatiy [6.2K]

The rotation is 90° counter clockwise.

<u>Step-by-step explanation:</u>

Triangle GHJ has the points G(2,5), H(3,3) and J(1,4)

And the coordinates changes after 90° counterclockwise rotation,

the points are changed from (x,y) to (-y, x) ,

so the triangle G'H'J' has the points G'(-5,2), H'(-3,3), J'(-4,1).

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3 years ago

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