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Gnom [1K]
2 years ago
11

What is the answer to 5 x 7 (5-7)

Mathematics
1 answer:
Veseljchak [2.6K]2 years ago
7 0

Answer: -70

Step-by-step explanation:

1. You subtract 5-7 because of PEMDAS and you get -2

2. multiply  5x7=35

3. Multiply 35x-2=-70

Parentheses/brackets

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Division

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9/25=
25*4=100 so,9*4=36
9/25=36%
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use the poisson distribution to find the indicated probability. if the random variable x has a poisson distribution with mean of
Hitman42 [59]
P(X=2)=\frac{e^{-6} 6^{2}}{2}=0.045
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3 years ago
The function g is defined by g(x)= 3x2 - 3.<br> Find g(3z).
vagabundo [1.1K]
=3(3z)2-3
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5 0
2 years ago
Write one sine and one cosine equation for each graph below.
pychu [463]

Answer:

Q13. y = sin(2x – π/2); y = - 2cos2x  

Q14. y = 2sin2x -1; y = -2cos(2x – π/2) -1

Step-by-step explanation:

Question 13

(A) Sine function

y = a sin[b(x - h)] + k

y = a sin(bx - bh) + k; bh = phase shift

(1) Amp = 1; a = 1

(2) The graph is symmetrical about the x-axis. k = 0.

(3) Per = π. b = 2

(4) Phase shift = π/2.  

2h =π/2

h = π/4

The equation is

y = sin[2(x – π/4)} or

y = sin(2x – π/2)

B. Cosine function

y = a cos[b(x - h)] + k

y = a cos(bx - bh) + k; bh = phase shift

(1) Amp = 1; a = 1

(2) The graph is symmetrical about the x-axis. k = 0.

(3) Per = π. b = 2

(4) Reflected across x-axis, y ⟶ -y

The equation is y = - 2cos2x  

Question 14

(A) Sine function

(1) Amp = 2; a = 2

(2) Shifted down 1; k = -1

(3) Per = π; b = 2

(4) Phase shift = 0; h = 0

The equation is y = 2sin2x -1

(B) Cosine function

a = 2, b = -1; b = 2

Phase shift = π/2; h = π/4

The equation is

y = -2cos[2(x – π/4)] – 1 or

y = -2cos(2x – π/2) - 1

6 0
2 years ago
Can someone please explain to me how to find the value of m? thanks<br>-10 = -10 + 7m
GarryVolchara [31]
                                        -10  =  -10  +  7m

Add  10  to each side:      0  =          7m

Divide each side by  7 :    0  =          m


Please take a second and just LOOK at the equation you started with.
It says: 

--  You have this number '-10' . 

--  Your number  -10  is going to be exactly the same size
     after you add 7 of something to it.

The ONLY way that could happen is if the 'something' is 'nothing' .

       ' m '  must be nothing.
8 0
3 years ago
Read 2 more answers
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