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goldenfox [79]
2 years ago
9

Missing value in the equivalent fraction 2/5 = ?/15

Mathematics
2 answers:
Schach [20]2 years ago
8 0
The missing value is 6 so 2/5 = 6/15
atroni [7]2 years ago
8 0

Answer:

6/15. because 2 is multiple by3

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Round 45.983 to the nearest whole number, tenth and hundredth.
Nady [450]

Answer:

46

Step-by-step explanation:

if you round to the nearest whole, look at the tenths place and if it is bigger than 4, then then you round up, like 7043.7305 to 7044 but if the tenths place is smaller than 5, the number stays the same but the decimal part is gone, like 350.24569405 to 350.

8 0
2 years ago
the patient recovery time from a particular surgical procedure is normally distributed with a mean of 5.9 days and a standard de
NNADVOKAT [17]
The 85th percentile is the cutoff time t such that

\mathbb P(X

In other words, the 85th percentile refers to the time needed to belong to the top 15% of the distribution; more generally, the n percentile is the top (100-n)\% of the distribution.

Anyway, to find this value of t, transform X to a random variable Z with the standard normal distribution using

Z=\dfrac{X-\mu}\sigma

where \mu is the mean of X and \sigma is the standard deviation of X.

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Here t^* is used to denote the z-score corresponding to the cutoff time t. Referring to a z-score table, you find that this occurs for t^*\approx1.036. So,

\dfrac{t-5.9}{2.1}=t^*\implies t=5.9+2.1t^*\approx8.076
7 0
3 years ago
A circle is described by the equation (x−12)2+(y−32)2=49. What are the cordinates for the center of the circle and the length of
Sergio [31]
The equation of a circle is  (x - a)² + (y - b)² = r², where the coordinates of the center(C) are  C(a, b) and "r" the radius. Here, C(12, 32), and r=7, if you need.

Thanks for your trust!!
6 0
3 years ago
Read 2 more answers
Factor completely
Charra [1.4K]
2.) 2x^2 - 3x - 14 = 0
2x^2 + 4x - 7x - 14 = 0
2x(x + 2) - 7(x + 2) = 0
(2x - 7)(x + 2) = 0

3.) x^2 + 7x = 18
x^2 + 7x - 18 = 0
x^2 - 2x + 9x - 18 = 0
x(x - 2) + 9(x - 2) = 0
(x + 9)(x - 2) = 0

4.) 9x^2 + 30x + 25 = 9x^2 + 15x + 15x + 25 = 3x(3x + 5) + 5(3x + 5) = (3x + 5)(3x + 5) = (3x + 5)^2

5.) x^2 - 14x + 49 = x^2 - 7x - 7x + 49 = x(x - 7) - 7(x - 7) = (x - 7)(x - 7) = (x - 7)^2
4 0
3 years ago
What is 4x + 3(x t 7)
atroni [7]
4x+3x+21
7x+21
7x=-21
X=-3
7 0
3 years ago
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