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Diano4ka-milaya [45]
2 years ago
8

Please hurry!!!!!!

Mathematics
2 answers:
frozen [14]2 years ago
5 0

Answer:

Answer is y =400(2x)

Step-by-step explanation:

mihalych1998 [28]2 years ago
5 0

Answer:

y = 400(2ˣ)

Step-by-step explanation:

it is that answer because 800-400=400 so that would rule out every answer but this one.

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Which function has the domain x>-11
Marat540 [252]
<h2>Answer</h2>

y=\sqrt{x+11} +5

<h2>Explanation</h2>

Remember that the square root function is not defined, in the set of real numbers, for negatives values, so its radicand (the thing inside the square root) must be zero or bigger than zero. In other words, to find the domain of a square root function, you should set the thing inside the radical bigger or equal to zero and solve for x. Let's find the domain of each one of our functions:

For y=\sqrt{x+11} +5

The thing inside the square root is x+11, so we are setting that bigger or equal than zero and solve for x to find the domain of the function:

x+11\geq 0

x\geq -11   domain

For y=\sqrt{x-11} +5

x-11\geq 0

x\geq 11   domain

For y=\sqrt{x-5} -11 and y=\sqrt{x-5} +11

x+5\geq 0

x\geq -5   domain

As you can see, the only one that has the domain x\geq -11 is the first choice.


7 0
3 years ago
A random sample is to be selected from a population that has a proportion of successes p=.60. When n=400, what is the probabilit
Nata [24]

Answer:

0.45134

Step-by-step explanation:

Given that :

p = 0.6

n = 400

Probability that sample. Proportion falls between 0.59 and 0.62

Using Normal approximation :

Mean (m) = n * p = 400 * 0.6 = 240

Standard deviation (s) = sqrt(pq/n)

q = 1 - p = 1 - 0.6 = 0.4

s = sqrt((0.6 * 0.4) / 400) = 0.0244948

P(0.59 < p < 0.62) :

(x - m) / s

P((0.59 - 0.6) / 0.0244948) < p < P((0.62 - 0.6) / 0.0244948)

P(Z < −0.408249) < p < P(Z < 0.8164998)

Using the Z probability calculator :

0.79289 - 0.34155 = 0.45134

3 0
2 years ago
If there are 15 pistachios for every 5 bowls, how many pistachios are in 4 bowls
Pani-rosa [81]

Answer:

12 pistachios

Step-by-step explanation:

We need to find the unit rate. So we divide 5 from 15.

15/5=3

So we know that 1 bowl has 3 pistachios(which I think needs more).

Now we need to find how many pistachios are in 4 bowls. Which means we multiply 4 and 3.

4x3=12

So there are 12 pistachios in 4 bowls.

---

hope it helps

7 0
2 years ago
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The answer should be c
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2 years ago
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