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tino4ka555 [31]
3 years ago
5

what is the value of the expression -2 (3x minus 2) + x + 9 when x equals negative 3 choices are a -16 B -2 C 28 D 34 which one

​

Mathematics
1 answer:
Nezavi [6.7K]3 years ago
6 0

Answer:

  C  28

Step-by-step explanation:

Put the given value where x is in the expression and do the arithmetic.

  -2(3(-3) -2) +(-3) +9

  = -2(-9 -2) -3 +9

  = -2(-11) -3 +9

  = 22 -3 +9

  = 19 +9

  = 28

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Considering the activity series given below for metals and nonmetals, which reaction will occur? al > mn > zn > cr >
victus00 [196]

The activity series is an arrangement of species in order of reactivity.

<h3>What is the activity series?</h3>

The activity series is an arrangement of species in order of reactivity. The position of a specie in the series determines the possibility of certain reactions.

The following are the fates of these reactions;

  • 2NaBr + I2--------->2NaI + Br2 - Not possible
  • 2Fe + Al2O3 ----------> 2Al + Fe2O3 - Not possible
  • 2AgNO3 + Ni ---------->  Ni(NO3)2 + 2Ag - possible
  • Pb + Zn(C2H3O2)2 ---------->  Zn + Pb(C2H3O2)2 - Not possible

Learn more about activity series:brainly.com/question/18080147

#SPJ1

8 0
2 years ago
According to the Rational Root Theorem, what are all the potential rational roots of f(x) = 15x11 – 6x8 + x3 – 4x + 3?
scoundrel [369]

we have

f(x) = 15x^{11} -6x^{8} + x^{3} - 4x + 3

we know that

<u>The Rational Root Theorem</u> states that when a root 'x' is written as a fraction in lowest terms

x=\frac{p}{q}

p is an integer factor of the constant term, and q is an integer factor of the coefficient of the first monomial.

So

in this problem

the constant term is equal to 3

and the first monomial is equal to 15x^{11} -----> coefficient is 15

So

possible values of p are 1, and\ 3

possible values of q are 1, 3, 5, and\ 15

therefore

<u>the answer is</u>

The all potential rational roots of f(x) are

(+/-)\frac{1}{15},(+/-)\frac{1}{5},(+/-)\frac{1}{3},(+/-)\frac{3}{5},(+/-)1,(+/-)3


3 0
3 years ago
Read 2 more answers
This is due in an hour please be quick!!​
erma4kov [3.2K]

Answer:

106 m^2

Step-by-step explanation:

First multiply the shaded area:

12 * 10 = 120

Then multiply the white space:

7 * 2 = 14

Then subtract the white space from the shaded area to find the area of only the shaded area.

120 - 14 = 106

Final answer: 106 m^2

I hope this helps!

6 0
2 years ago
Read 2 more answers
15,000,015,969+5,000,003
Nat2105 [25]
<h2>Answer:</h2><h2>15,005,015,972</h2><h2></h2><h2>Hope this helps!!</h2>
7 0
3 years ago
There are 25 trees on the Jackson’s property. Twenty percent of the trees are oak trees. Which equation can be used to find the
ahrayia [7]

Answer:

StartFraction 25 divided by 1 Over 20 divided by 1 EndFraction = StartFraction 25 Over 20 EndFraction

Step-by-step explanation:

Number of trees = 25

Percentage of aok trees = 20%

To obtain the Number of oak trees :

(Number of trees ÷ 1) ÷ (percentage ÷1)

(25 / 1) ÷ (20 / 1) = (25 /1) * (20 / 1) = 25 / 20

StartFraction 25 divided by 1 Over 20 divided by 1 EndFraction = StartFraction 25 Over 20 EndFraction

8 0
3 years ago
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