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Svetllana [295]

4 years ago

7

Phase ________ of clinical testing uses the fewest number of subjects and establishes the dose at which signs of toxicity appear

.
A. 4
B. 3
C. 1
D. 2

1 answer:

zlopas [31]4 years ago

5 0

It's C. Phase 1 <span>of clinical testing uses the fewest number of subjects and establishes the dose at which signs of toxicity appear.
</span>e

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Recall from Example 1 that whenever Suzan sees a bag of marbles, she grabs a handful at random. She has seen a bag containing th

hammer [34]

Answer:

Required Probability in the lowest terms as fractions = $\frac{15}{182} =0.0824$

Step-by-step explanation:

Step 1:-

Given Suzan has three red marbles, two green ones, five white ones, and two purple ones.

Total marbles = 3R+2G+5W+2P = 12

The number of exhaustive cases that the five marbles drawn from 12 marbles

n(S) = $12C_{5} = 792 ways$

by using formula $n_{Cr_{} } = \frac{n!}{(n-r)!r!} = \frac{12!}{(12-5)!5!}$ = 792

The number of favorable cases

She has drawn two red marbles from 3 red marbles, that is 3c₂ ways

she has drawn one marble drawn from 2 green marbles, that is 2c₁ ways

she has drawn one marble drawn from 5 white marbles, that is 5c₁ ways

she has drawn one marble drawn from 2 purple marbles, that is 2c₁ ways

The favorable cases are (n(E) = 3c₂ X 2c₁X5c₁X2c₁ = 60 ways

Required Probability = $\frac{n(E)}{n(S)}$

$Required probability = \frac{n(E)}{n(S)} = \frac{60}{792}$

Required Probability in the lowest terms as fractions = $\frac{15}{182} =0.0824$

3 0

3 years ago

Shelia has to pack 128 baskets of apples. She had packed 1/4 of the baskets. How many baskets are left for her to pack?

Lerok [7]

1/4 of 128 is 32,
32 x 3 = 96

There are 96 baskets left.

5 0

4 years ago

PLS HELP DUE SOON SHOW YOUR WORK!

Vladimir79 [104]

9514 1404 393

Answer:

615.8 square feet
9 truckloads

Step-by-step explanation:

The area of the circular ring is given by the formula ...

A = πr²

where r is the radius, or half the diameter.

A = π(14 ft)² = 196π ft² ≈ 615.752 ft²

The area of the training area is about 615.8 square feet.

__

The number of truckloads of dirt required for coverage will be ...

(615.8 ft²)/(75 ft²/truckload) ≈ 8.21 truckloads

Since the dirt comes only in whole truckloads, Hilary needs 9 truckloads.

8 0

3 years ago

Whats the factors of 13

ivann1987 [24]

13 can only be divided evenly by 1 and<span> 13. its a prime number

</span>

6 0

3 years ago

Please help if u can

Nuetrik [128]

Answer:

x = 11.74739484

Step-by-step explanation:

To solve this problem, you can use trig functions. We are given an angle and the side next to it, and we are looking for the side opposite it. The perfect trig function to use for this would be tangent:

tan(θ) = opposite / adjacent

We can substitute the values we already have:

tan(40) = x / 14

x = 14 * tan(40)

We can evaluate this using a calculator and get:

x = 11.74739484

4 0

3 years ago