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2 years ago

Here are the first five terms of an arithmetic sequence.

Mathematics

2 answers:

Likurg_2 [28]2 years ago

7 0

33-7n is the required expression.

Have a nice day!!

charle [14.2K]2 years ago

5 0

Answer:

the answer is -7n+ 33

Step-by-step explanation:

i usually just add the constant difference to the first term to create the last value . it sometimes doesnt work but does most times

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What num com between 4 and 6?

damaskus [11]

Answer:

Step-by-step explanation:

1,2,3,4,5,6

7 0

2 years ago

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PLs help 50 PTS!!!!! PLEASE ILL GIVE BRAINLIEST!!!!!

Nookie1986 [14]

Answer:

$\large\boxed{y=\dfrac{1}{4}x^2-x-4}$

Step-by-step explanation:

The equation of a parabola in vertex form:

$y=a(x-h)^2+k$

(h, k) - vertex

The focus is

$\left(h,\ k+\dfrac{1}{4a}\right)$

We have the vertex (2, -5) and the focus (2, -4).

Calculate the value of a using $k+\dfrac{1}{4a}$

k = -5

$-5+\dfrac{1}{4a}=-4$ add 5 to both sides

$\dfrac{1}{4a}=1$ multiply both sides by 4

$4\!\!\!\!\diagup^1\cdot\dfrac{1}{4\!\!\!\!\diagup_1a}=4$

$\dfrac{1}{a}=4\to a=\dfrac{1}{4}$

Substitute

$a=\dfrac{1}{4},\ h=2,\ k=-5$

to the vertex form of an equation of a parabola:

$y=\dfrac{1}{4}(x-2)^2-5$

The standard form:

$y=ax^2+bx+c$

Convert using

$(a-b)^2=a^2-2ab+b^2$

$y=\dfrac{1}{4}(x^2-2(x)(2)+2^2)-5\\\\y=\dfrac{1}{4}(x^2-4x+4)-5$

use the distributive property: a(b+c)=ab+ac

$y=\left(\dfrac{1}{4}\right)(x^2)+\left(\dfrac{1}{4}\right)(-4x)+\left(\dfrac{1}{4}\right)(4)-5\\\\y=\dfrac{1}{4}x^2-x+1-5\\\\y=\dfrac{1}{4}x^2-x-4$

3 0

3 years ago

Find the exponential generating function for the number of alphanumeric strings of length n n formed from the 26 26 uppercase le

lana66690 [7]

Answer:

the answer is contained in the attachment

Step-by-step explanation:

for complete explanation kindly check the attachment.

5 0

3 years ago

Find the absolute value and the opposite of the integer.

Talja [164]

The absolute value is always non-negative!

So the absolute value of 57 is 57 itself, as it's non-negative (i.e. it's positive or 0).

Opposite value is the number with a different sign: an opposite value of a positive number is negative, so here it will be -57 .

The correct answer is C.

7 0

3 years ago

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What are the dangers of having overdraft protection?

Oksanka [162]

Your bank can charge you a overdraft fee, it can effect your credit score if you sign up for overdraft protection on the account.

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3 years ago