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erica [24]
3 years ago
7

Please help me with this..

Mathematics
1 answer:
posledela3 years ago
5 0
I believe the answer is 7.18
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Please please help and show work, preferably the box method!!!!
Black_prince [1.1K]

Answer:

(x−2)(x+15)

Step-by-step explanation:

The middle number is 13 and the last number is -30.

Factoring means we want something like

(x+_)(x+_)

Which numbers go in the blanks?

We need two numbers that...

Add together to get 13

Multiply together to get -30

Can you think of the two numbers?

Try -2 and 15:

-2+15 = 13

-2*15 = -30

Fill in the blanks in

(x+_)(x+_)

with -2 and 15 to get...

(x-2)(x+15)

6 0
3 years ago
Read 2 more answers
A grocer purchases 20.2 pounds of roast beef for a bulk rate price of $39.20.
Mumz [18]

Answer:

$0.52 per pound

Step-by-step explanation:

Divide 20.2 by 39.20

5 0
3 years ago
The explicit formula for the geometric sequence -1/9, 1/3, -1, 3, -9, ... is -1/9(-3)^x-1 . What is the common ratio and recursi
KATRIN_1 [288]

Answer:

  • r=3
  • \left\{\begin{array}{ccc}a_1=-\frac{1}{9}\\a_n=-3a_{n-1}\end{array}\right

Step-by-step explanation:

Given the sequence

-1/9, 1/3, -1, 3, -9, ...

The common ratio is determined by the division of term by the previous term.

Common Ratio, r=\frac{1/3}{-1/9} =\frac{-1}{1/3} =\frac{3}{-1}=-3

A recursive formula is a formula that defines each term of a sequence using preceding term(s).

For the given sequence, the recursive formula is:

\left\{\begin{array}{ccc}a_1=-\frac{1}{9}\\a_n=-3a_{n-1}\end{array}\right

7 0
3 years ago
Read 2 more answers
What is the area of a traingle with base 19 inches and height 11 inches?
LiRa [457]
A=bh/2=(19 x 11)/2=(209)/2=104.5 inches
5 0
3 years ago
Need help will mark Brainliest
MatroZZZ [7]

Answer:

Step-by-step explanation:

i think the answer is 94°

5 0
3 years ago
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