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tiny-mole [99]
2 years ago
12

PLS HELPPP THIS IS MY LAST QUIZ AND I RLY NEED TO ACE IT ILL GIVE BRAINIEST

Mathematics
1 answer:
Katena32 [7]2 years ago
3 0

Answer:

1. B 2.A 3. A

Step-by-step explanation:

Using a is b then if a is not a b is not b

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May you please help me for part b for brainliest,
olya-2409 [2.1K]

Answer:

Very certain it is C

Step-by-step explanation:

There are no points on the graph line itself so I cannot really confirm this but i am 70% sure

7 0
3 years ago
8th grade geometry please help
Alex777 [14]
Okay so the value of X is 9x^2/7
3 0
3 years ago
In his boat, Sheldon can travel 45 mi downstream in the same time that it takes to travel 9 mi upstream. If the rate of the curr
Nataliya [291]

Answer:

9 mph

Step-by-step explanation:

-let x be the speed of current and t be time. The speed equation for both directions can then be represented as:

Speed=\frac{Distance}{Time}\\\\\#Upstream\\(u-6)t=9\\\\\#Donwstream\\\\(u+6)t=45

#Since t is equal in both, we can do away with t.

#We the divide the downstream equation by the upstream equation as:

\frac{u+6}{u-6}=\frac{45}{9}\\\\(u+6)=5(u-6)\\\\u+6=5u-30\\\\4u=36\\\\u=9

Hence, the boat's speed in still water is  9 mph

7 0
3 years ago
Which set of ordered pairs represents a function? A {(22, 5), (23, 10), (22, 7), (23, 5)} B {(22, 5), (26, 10), (23, 7), (23, 5)
balu736 [363]

Answer:

C

Step-by-step explanation:

A function is a special kind of relation in which each valid input gives exactly one output.

C {(22, 10), (23, 10), (24, 7), (25, 5)}

So C is the correct option.

7 0
3 years ago
The mean is μ = 15.2 and the standard deviation is σ = 0.9. find the probability that x is greater than 17.
Vlad1618 [11]
The probability that x >17 will be found as follows:
the z-score is given by:
z=(17-15.2)/0.9=2
Thus
P(X>17)=1-P(x<17)=P-(z=2)
=1-0.9772
=0.0228

8 0
3 years ago
Read 2 more answers
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