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patriot [66]
3 years ago
14

Please help me !!!!!!​

Mathematics
1 answer:
bearhunter [10]3 years ago
5 0

Second one is correct, The value of -a - c is positive

See, from the number line a = -6 and c = 2

Now, -a - c

= -(-6) -(2)

= +6 - 2 = 4

Which is true...

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Which rules of exponents will be used to evaluate the expression. Check all that apply [( 7^5)(7^3)]-4
Ghella [55]
Parenthesis, then exponents, then subtraction.
3 1
3 years ago
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Terry invested money in a biotech stock whose growth is modeled by the function f(x) = 0.01(2)x, where x represents number of da
strojnjashka [21]

Answer:

The average rate of change is 1.275

Step-by-step explanation:

The average rate of change of f(x) from x=a to x=b is given by:

\frac{f(b)-f(a)}{b-a}

The money Terry invested is modeled by the function f(x)=0.01(2)^x where x represents number of days.

The average rate of change from day 2 to day 10 is given by:

\frac{f(10)-f(2)}{10-2}

f(10)=0.01(2)^{10}=10.24

f(2)=0.01(2)^{2}=0.04

The average rate of change becomes:

\frac{10.24-0.04}{8}

=\frac{10.2}{8}=1.275

3 0
3 years ago
Read 2 more answers
Factor x2 – 8x + 15.<br><br> Which pair of numbers has a product of ac and a sum of b?
vichka [17]

Answer:

(x - 5)(x - 3)

Step-by-step explanation:

{x}^{2}  - 8x + 15 \\   = {x}^{2}  - 5x - 3x + 15 \\   = x(x  -  5) - 3(x - 5) \\  = (x - 5)(x - 3) \\  \\ ac = ( - 5) (- 3) = 15 \\ a + c =  - 5 - 3 =  - 8

8 0
4 years ago
Take some time but answer correctly
Arturiano [62]

Answer:

c) 2⁻⁹

Step-by-step explanation:

1) use negative power rule: x^{-a} =\frac{1}{x^{a} }

1/2⁹

2) simplify ₂⁹ to 512

1/512 ( same as (8) ⁻3

5 0
3 years ago
Read 2 more answers
<img src="https://tex.z-dn.net/?f=%5Cfrac%7Bt-71%7D%7B-6%7D" id="TexFormula1" title="\frac{t-71}{-6}" alt="\frac{t-71}{-6}" alig
musickatia [10]

Answer:

<h3>The answer is 89</h3>

Step-by-step explanation:

\frac{t - 71}{ - 6}  =  - 3

Cross multiply

That's

t - 71 = ( - 6)( - 3)

t = 18 + 71

t = 89

Hope this helps you

7 0
4 years ago
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