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2 years ago

What is the 40th term of the arithmetic sequence 13, 26, 39, 52

Mathematics

1 answer:

Diano4ka-milaya [45]2 years ago

7 0

Answer:

your answer would be 520

Step-by-step explanation:

13 x 40 = 520

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18 of the last 30 cars passed you were black. what is the probability the next car will be black?

Nutka1998 [239]

18/30 simplifies into 6/10 which then is put in decimal form of 0.6

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3 years ago

The function Q(x)=2x^2-kx+18. For what value of k does Q(x) have one distinct real solution? (NEEDS TO BE DONE WITHIN 2 HOURS!)

Aliun [14]

Answer:

k = 12

Step-by-step explanation:

Given:

The equation $Q(x)=2x^2-kx+18$

To find:

Value of $k = ?$ for which the given equation has one distinct real solution.

Solution:

The given equation is a quadratic equation.

There are always two solutions of a quadratic equation.

For the equation: $ax^{2} +bx+c=0$ to have one distinct solution:

$b^2 - 4ac = 0$

Here,

a = 2,

b = -k and

c = 18

Putting the values, we get:

$(-k)^2 - 4\times 2\times 18 = 0\\\Rightarrow k^2 = 18\times 8\\\Rightarrow k^2 =144\\\Rightarrow k = 12$

The equation becomes:

$Q(x)=2x^2-12x+18$

And the one root is:

$2(x^2-6x+9 ) = 0\\\Rightarrow 2(x-3)^2=0\\\Rightarrow x = 3$

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2 years ago

the total cost, c, of an item purchased from a store is c = p .07p, where p is the price before sales tax, and there is a 7% sal

alekssr [168]

C = p + 0.07p
c = p(1 + 0.07)
c = 1.07p

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3 years ago

2. List the like terms in each of the following: i) 6a , 13b2 , -2a , 2a2 , -b2 , bc

lana [24]

13b2 &-b2
6a & -2a

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2 years ago

A point has no physical characteristics. True False

Burka [1]

Thank you for posting your question here at brainly. Feel free to ask more questions.

The best and most correct answer among the choices provided by the question is TRUE.

Hope my answer would be a great help for you.

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2 years ago