2 years ago

I need help asap please

Mathematics

1 answer:

love history [14]2 years ago

7 0

Answer:

k = 29

Step-by-step explanation:

5k - 3 + 9 + k = 180

6k + 6 = 180

6k = 180 - 6 = 174

k = 174/6 = 29

You might be interested in

What is the term of a 7-term geometric series if the first term is -11 the last term is -45,056 and the common ratio is -4

shutvik [7]

I assume you mean to ask how to find the sum of the seven terms?

You have

$a_2=ra_1$
$a_3=ra_2=r^2a_1$
$a_4=ra_3=r^3a_1$
...
$a_7=ra_6=r^6a_1$

So the sum is

$a_1+ra_1+r^2a_1+\cdots+r^6a_1=a_1(1+r+r^2+\cdots+r^6)=a_1\times\dfrac{1-r^7}{1-r}$

You know that $a_1=-11$ and $r=-4$ , so the sum is equal to

$-4\times\dfrac{1-(-4)^7}{1-(-4)}=-13108$

8 0

3 years ago

A taxi charges $1.25 per mile and a flat fee of $2.75. How much would Maria pay for a 5 mile ride?

Olegator [25]

Answer:

Step-by-step explanation:

so you write the expression 2.75+1.25x= ?

If we subsitute the X for 5(miles) the we'll have the expression 2.75+1.25(5)= ?

and if you simplify that you will get 9.

7 0

3 years ago

(14v^7x^2-3v^7x^5)divided by (-2v^4x^3)

Dmitrij [34]

.1 Simplify: 5n(2n3+n2+8)+n(4-n).

Solution:

5n(2n3+n2+8)+n(4-n).

= 5n × 2n3 + 5n × n2 + 5n × 8 + n × 4 - n × n.

= 10n4 + 5n3 + 40n + 4n – n2.

= 10n4 + 5n3 + 44n – n2.

= 10n4 + 5n3 – n2 + 44n.

Answer: 10n4 + 5n3 – n2 + 44n

5 0

3 years ago

Estimate the following deference using front-end estimation.PLS HURRY!<br><br> 788.44 - 225.6

AfilCa [17]

Answer:

562.84

Step-by-step explanation:

788.44-225.6 = 562.84

Srry if I'm worng

5 0

3 years ago

HELPPPPP PLEASEEEEEEE

Naddik [55]

Answer:

B is the answer

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers