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PtichkaEL [24]
3 years ago
5

3(x-y+5) ??????????!?????

Mathematics
1 answer:
MrRissso [65]3 years ago
7 0
Hi there!

#3(x - y + 5)

Distribute 

=(3)(x) + (3)(-y) + (3)(5)

= 3x - 3y + 15 

I hope my answer helps!
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a square has 9 inch sides. every side of a pentagon is also 9 inches long. are their perimeters the same? explain
Klio2033 [76]
No. A square is four sides, and a pentagon is five sides. The pentagon's perimeter would be greater than the square's because it has more sides.
8 0
3 years ago
Read 2 more answers
Pls help me:) <br> A-(4•7)^-4<br> B-1/28^2<br> C-7^-2/4^2<br> D-(4•7)^4
Sergio039 [100]

Answer:

\frac{1}{(28)^{2} }

Step-by-step explanation:

Step 1;

Write expression

4^{-2} . 7^{-2\\\frac{\frac{1}{4^{-2} } }{y\frac{1}{7^{-2} } } }

\frac{1}{4^{2} .7^{2} }

\frac{1}{(4x7)^{2} }

\frac{1}{(28)^{2} }

8 0
3 years ago
The Orchard Cafe has found that about 3% of the diners who make reservations don't show up. If 83 reservations have been made, h
daser333 [38]

Answer:

\mu = 80.51\\\sigma = 1.56

Step-by-step explanation:

We are given the following information in the question:

Percentage of of the diners who make reservations don't show up = 3%

Number of reservations = 83

Thus, we are given a binomial distribution with n = 83 and p = 0.97

X\sim \text{ Binom}(p = 0.97, n = 83)

\mu = np = (83)(0.97) = 80.51

Around 81 people  can be expected to show up.

\sigma = \sqrt{np(1-p)} = \sqrt{(83)(0.97)(1-0.97)} = 1.5541 \approx 1.56

The standard deviation of this distribution is 1.56

6 0
3 years ago
Determine the equation of the inverse of y=-4/x+1 The inverse is y=-a/x-b where a = a0 and b = a1
leva [86]
<span>y=-4/x+1 is ambiguous, since it's not immediately clear whether you meant 

                                                -4
y = -4/x   +    1      or      y = ---------
                                               x+1

I'm going to assume that the latter is what you meant.

1.  Interchange x and y, obtaining:

               -4
     x = --------
             y+1

2.  Solve this for y, obtaining  y+1 = -4/x, or   xy + x = -4, or
                                
                                -x - 4
    xy = -x-4, or y = ---------
                                    x

                                   -1              -1                 4
3.  Replace y with    f      (x):      f    (x) = -1 - -----
                                                                         x

This last result has the correct form.</span>
8 0
4 years ago
Read 2 more answers
PLZZ HELP!!!! ASAP PLZ!!!!<br> XTRA POINTS!!!
schepotkina [342]

Answer:

38.1 cm²

Step-by-step explanation:

area of full circle = π6² = 113.04 cm²

area of 150° segment = (150/360)(113.04) = 47.1 cm²

triangle base = sin 75° x 6 x 2 = 11.59

triangle height = cos 75° x 6 = 1.553

area of triangle = 1/2(11.59)(1.553) = 9 cm²

150° segment - triangle = 47.1 - 9 = 38.1 cm²

3 0
3 years ago
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