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just olya [345]
3 years ago
8

A number decreased by 3 times the sum of a number and 2 is 306

Mathematics
1 answer:
Veronika [31]3 years ago
4 0
What grade are you in

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Explain how slope is used to determine if a triangle is a right triangle.
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A right triangle contains a right angle, so it must have two sides that are perpendicular. If the slopes of two sides can be shown to be negative reciprocals of each other, then it can be concluded that a right angle is formed. If a triangle contains a right angle, then it is a right triangle.

5 0
3 years ago
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The value of Sara's new car decreases at a rate of 8% each year. Write an exponential function to model the decrease in the car'
creativ13 [48]
8% less
100-8=92


P=present amount
F=future amount=f(t)
t=time in years
rate of decay is 8% or times 92%

F=P(0.92)^t is the equation or
f(t)=P(0.92)^t is the equation or
8 0
3 years ago
What is 3+3×3-3+3 equal?
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Remember to use PEMDAS when solving these problems. You multiply before you work with addition and subtraction.
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Multiplying Polynomials//<br><br> Multiply- <br> 12x^4 (-5/6x^3y^2)
ElenaW [278]
12 x^{4} * (- \frac{5}{6} x^{3} y^{2})
Now multiple the coefficients and add the exponents with common bases
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Now write your final expression
-10 x^{7}  y^{3}
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6 0
3 years ago
Urgent due for tommorow . will mark brainliest and get 50 pts<br>plz show workings​
Vilka [71]

Answer:

Step-by-step explanation:

Sec B

1) 5p⁻³ = 8*5⁻²      

p⁻³  = 2³*5⁻²/5            

p⁻³ =2³*5⁻³             { 1/a^m = a^-m}

p⁻³ = 5⁻³ /2⁻³            {a^m = 1/a^-m}

p⁻³ = (5/2)⁻³

p= 5/2

2) 4x²  = 81

x²  = 81/4

x²  = 9² /2²

x²  =(9/2)²

x = 9/2

3) 9^x/3 =81

9^x/3 = 9^2

Comparing the powers, x/3 = 2

                                         x = 2*3 =6

  x = 6

6 0
3 years ago
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