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zloy xaker [14]
4 years ago
10

PLEASE HURRY!!! What is the scale factor of this dilation?

Mathematics
1 answer:
MakcuM [25]4 years ago
7 0

Answer:

1/2

Step-by-step explanation:

the legs and hypotenuse of the red triangle are double than the blue triangle

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Evaluate C(5,2). 10 20 60
Vedmedyk [2.9K]

Answer:

10.

Step-by-step explanation:

If you mean the number of combinations of 2 from 5 it is

5*4 / 2*1

= 10.

5 0
3 years ago
Write 2.63 as a mixed number in simplest form.
Sedaia [141]

Answer:

263100=2.63

Step-by-step explanation:

263100 is already in the simplest form. It can be written as 2.63 in decimal form (rounded to 6 decimal places).

6 0
3 years ago
The probability is 51​% that the sample mean will be between what two​ values, symmetrically distributed around the population​
Alisiya [41]

Answer:

The lower bound is, -z=-0.69 and the upper bound is z=0.69.

Step-by-step explanation:

Let the random variable <em>X</em> follows a normal distribution with mean <em>μ </em>and standard deviation <em>σ</em>.

The the random variable <em>Z, </em>defined as Z=\frac{X-\mu}{\sigma} is standardized random variable also known as a standard normal random variable. The random variable  Z\sim N(0, 1).

The standard normal random variable has a symmetric distribution.

It is provided that P(-z\leq Z\leq z)=0.51.

Determine the upper and lower bound as follows:

P(-z\leq Z\leq z)=0.51\\P(Z\leq z)-P(Z\leq -z)=0.51\\P(Z\leq z)-[1-P(Z\leq z)]=0.51\\2P(Z\leq z)-1=0.51\\2P(Z\leq z)=1.51\\P(Z\leq z)=0.755

Use a standard normal table to determine the value of <em>z.</em>

The value of <em>z</em> such that P (Z ≤ z) = 0.755 is 0.69.

The lower bound is, -z=-0.69 and the upper bound is z=0.69.

5 0
4 years ago
Simplify this product<br> (v+6)(v-6)
Phoenix [80]
V(squared) - 36

multiply v times v, v times -6, 6 times v, 6 times -6 and add them all together
5 0
3 years ago
Solve these systems of equations Using the elimination method.
grandymaker [24]
A. 3x + y = 13 → 15x + 5y = 65
    x -  5y = 15 →     x -  5y = 15
                                     16x = 80
                                      16     16
                                        x = 5
                                 x - 5y = 15
                                 5 - 5y = 15
                               - 5          - 5
                                     -5y = 10
                                      -5     -5
                                        y = -2
                                 (x, y) = (5, -2)

b.    6x - y = 14
      2x + y = 12
            8x = 26
             8      8
              x = 3¹/₄
       6x - y = 14
6(3¹/₄) - y = 14
   19¹/₂ - y = 14
 - 19¹/₂       - 19¹/₂
             -y = -5¹/₂
             -1      -1
               y = 5¹/₂
        (x, y) = (3¹/₄, 5¹/₂)

c. 3x -  4y = 22 → 15x - 20y = 110
    2x + 5y =   7 →  8x + 20y =   28
                                        23x = 138
                                         23       23
                                            x = 6
                                   3x - 4y = 22
                                3(6) - 4y = 22
                                   18 - 4y = 22
                                 - 18         - 18
                                         -4y = 4
                                          -4    -4
                                            y = -1
                                     (x, y) = (6, -1)
8 0
3 years ago
Read 2 more answers
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