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3 years ago

PLEASE help with 12 :))

Mathematics

1 answer:

Kitty [74]3 years ago

7 0

The answer would be x<-6

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If y varies directly as x, and y is 400 when x is rand y is r when x is 4 what is the numeric constant of variation in this rela

s344n2d4d5 [400]

Answer:

Step-by-step explanation:

y = kx

400 = kr . . . . . . (1)

also, r = 4k . . . .(2)

400 = k(4k) = 4k^2

k^2 = 400/4 = 100

k = sqrt(100) = 10

3 0

3 years ago

An experimental drug is administered to 80 randomly selected individuals, with the number of individuals responding favorably r

Solnce55 [7]

Answer:

Yes, because the experiment satisfies all the criteria for a binomial experiment.

Step-by-step explanation:

A binomial experiment has the following criterias,

1. There must be a fixed number of trials

2. Each trial is independent of the others

3. There must be only two outcomes ( success and failure )

4. The probability of each outcome is same.

Given,

An experimental drug is administered to 80 randomly selected individuals, with the number of individuals responding favorably recorded,

The number of trials = 80 ( fixed )

Each individuals is independent,

Total outcomes = 2 ( yes or no ),

Also, the probability of each individual is same,

Hence, the given probability experiment represent a binomial experiment.

3 0

3 years ago

Help that one side is 2x-2

bogdanovich [222]

Answer: x = 2/3

Step-by-step explanation:

Add all sides.

2x-2 + 2x - 2 + x + x =

6x - 4

Put " = 0 "

6x-4 = 0

Add 4 to both sides.

6x-4 = 0

+4 = +4

-------------------

6x=4

You get 6x = 4 because the 4 on the left side of the equals sign cancelled out!

NOW DIVIDE 6 FROM BOTH SIDES

6x = 4

/6 /6

-----------

x= 4/6

SIMPLIFY / REDUCE FRACTION

4/6 divided by 2 = 2/3

2/3 is the answer !

5 0

3 years ago

After six weeks the tomato plant that was given extra food and water was 26 cm tall . The tomato plant that was not given any ex

Len [333]

The answer is 19.37 cm. The problem is only asking what's 74.5% of 26 cm, 0.745 • 26 = 19.37 cm.

5 0

3 years ago

Quadrilateral JKLM has vertices J(-4,-1), K(-1,2), L(6,2). For what coordinates of point M is JKLM a parallelogram?

Burka [1]

Answer: B

Look At the pictures Please. :)

I graphed your points so you can see it visually. Look through all the pictures they show my process.

7 0

3 years ago