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andreyandreev [35.5K]
3 years ago
11

I'm not that smart with this stuff so, please help?

Mathematics
1 answer:
muminat3 years ago
5 0
The product is 7/12 6
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Let's say that you go out for dinner. The meal and the service are excellent. You want to leave a really good tip for the waiter
Oduvanchick [21]
First, to estimate we can round 53.82 up to 55.00. Then you can look at it like this: when you divide 100 by 20 you get 5, so 20% is one fifth of 100. Therefore, we want to find one fifth of $55. To do this, you multiply 55*1/5. When you multiply the numerators by each other and the denominators by each other, you get 55/5. When you divide the numerator and denominator by 5, you get 11/1 or $11.

Hope this helps
7 0
3 years ago
The largest z-score available in most tables is 2.99, which corresponds to a probability of 99.86%. A fair coin is
lana66690 [7]

Answer:

The number of heads observed is 121.14 heads

Step-by-step explanation:

The formula for the z-score of a proportion is given as follows;

z=\dfrac{\hat{p}-p}{\sqrt{\dfrac{pq}{n}}}

Where:

{\hat{p} = Sample proportion

p = Population success proportion = 0.5

q = 1 - p = 1 - 0.5 = 0.5

n = Number in of observation = 200

z = 2.99

Hence, we have;

z=\dfrac{\hat{p}-0.5}{\sqrt{\dfrac{0.5 \times 0.5}{200}}} = 2.99

Therefore;

{\hat{p}-0.5}{} = 2.99 \times \sqrt{\dfrac{0.5 \times 0.5}{200}} = 2.99 \times\dfrac{\sqrt{2} }{40}

{\hat{p} = 0.6057

Whereby \ \hat p = \dfrac{Number \ of \ heads}{Number \ of \ observation} =  \dfrac{Number \ of \ heads}{200} = 0.6057

∴ The number of heads observed = 200 × 0.6057 = 121.14 heads.

5 0
3 years ago
What is the solution, vertex , and y-intercept ?
MrMuchimi
F(x) = -(x+7)² + 4

f(x) = -(x+7)(x+7) + 4
f(x) = -(x² + 7x + 7x + 49) + 4
f(x) = -x² - 14x - 49 + 4
f(x) = -x² - 14x - 45

True for f(x)
<span>the equation is quadratic. 
the vertex is (7,4)
</span><span>the y-intercept is (0,4)</span>
7 0
3 years ago
Answer both and I will give brainiest and 50 points.
IgorLugansk [536]

Answer:

1. From the origin, move 7 units back, 9 units right, and 2 units down.

2. From the origin, move 2 units back, 8 units right, and 4 units down.

Hope this helps :)

7 0
3 years ago
Question 1<br> What are the solutions of the equation (y - 3)(y – 6) = 0?
Natali [406]

Answer:

The answer is y=3 or y=6

Step-by-step explanation:

8 0
4 years ago
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