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3 years ago

I’m having trouble with transformation please help

Mathematics

2 answers:

kondor19780726 [428]3 years ago

8 0

Answer:

Step-by-step explanation:

Dovator [93]3 years ago

6 0

Answer:

your answer is 56 hope this is write

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Verizon [17]

Answer:

Step-by-step explanation:

The vertex form of an equation of the parabola:

f(x) = a(x - p)² + q

vertex is (2, 4) so p = 2, q = 4

so:

f(x) = a(x - 2)² + 4

the parabola goes through the point (-5, 2) so x=-5, f(x)=2

2 = a(-5-2)² + 4

- 2 = a(49)

a = -²/₄₉

Therefore the equation of the parabola in vertex form:

f(x) = -²/₄₉(x - 2)² + 4

6 0

4 years ago

Find the slope of the line that passes through (2, 4) and (9,5).

givi [52]

Answer:

1/7

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

What is the GCF of 20, 36 and 48

nlexa [21]

20= 1,2,4,5,10,20
36=1,2,3,4,6,9,12,18,36
48=1,2,3,4,6,8,12,16,24,48

6 0

3 years ago

The sides of triangle can be represented by x+3, 2x+4 and 3x-1. what would be the perimeter of it were scaled down by half

svlad2 [7]

The perimeter will also be scaled down by half if the original triangle if it were scaled down by half.

<h3>What is the perimeter of a triangle?</h3>

The total length of a triangle's boundary is referred to as its perimeter. It is the total of the triangle's three sides. A triangle's perimeter will be equal to a+b+c if its three sides are a, b, and c.

The sides of the original triangle are:

x+3, 2x+4, 3x-1

The perimeter of the triangle will be

$x+3+2x+4+3x-1\\=6x+6$

If it were scaled down by half then new sides will be

$\frac{x+3}{2} , \frac{2x+4}{2} , \frac{x-1}{2}$

So, the perimeter of the new triangle will be

$\frac{x+3}{2} + \frac{2x+4}{2} + \frac{3x-1}{2}\\=\frac{x+3+2x+4+3x-1}{2} \\=\frac{6x+6}{2}\\ =3x+3$

This is half of the original triangle's perimeter. Therefore, the perimeter of the new triangle is half of the perimeter of the original triangle.

To know more about perimeter of a triangle visit: brainly.com/question/12577324?referrer=searchResults

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4 0

2 years ago

In a study of 346 comma 145 cell phone users, it was found that 26 developed cancer of the brain or nervous system. Assuming th

Y_Kistochka [10]

Answer:

a) P ( X ≤ 26 ) = 0.0134

b) The significance of the cell phone causing brain cancer is 1.34 or 0.0134

Step-by-step explanation:

Solution:-

- From the entire population of cell phone users os size N = 346,145 media reported n = 26 people who developed cancer of brain or nervous system.

- The probability of a person developing cancer of the brain or nervous system, assuming that cell phones have no effect, is p = 0.000113.

- Denote a random variable X: The number people who developed cancer of brain or nervous system are normally distributed.

- The expected or mean number of people who developed cancer of brain or nervous system are u = 40.

- The standard deviation ( s ) for the distribution would be:

$s = \sqrt{u*( 1 - p ) }\\\\s = \sqrt{40*( 1 - 0.000113 ) }\\\\s = 6.3242\\$

- The random variate X follows normal distribution with parameters:

X ~ Norm ( 40 , 6.3242^2 )

- The probability of X ≤ 26 cases from the total population of N = 346,145 can be determined by evaluating the Z-score standard value of the test statistics:

$P ( X \leq 26 ) = P ( Z \leq [ \frac{X - u }{s} ) \\\\P ( Z \leq [ \frac{ 26 - 40 }{6.3242} ) = P ( Z \leq -2.21371 )$

- Using standard normal table compute the probability on the left side of Z-score value -2.21371. Hence,

P ( X ≤ 26 ) = 0.0134

- The probability of the less than 26 number of cases who developed cancer of the brain or nervous system is 0.0134 as per media reports.

- So 1.34% of population is a case brain cancer due to cell phones according to media reports.

Which is significant less than the expected number of cases ( 40 ) that occur regardless of cell phone effect.

Answer: The significance of the cell phone causing brain cancer is 1.34 or 0.0134.

5 0

4 years ago