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2 years ago

Use the information below to answer the following questions.

Mathematics

1 answer:

Anestetic [448]2 years ago

4 0

I got the same exact question from someone else couple min earlier. Here you go:)

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Shyla had a balance of −$255.25 in her account, and Susan had a balance of −$178.75 in her account.

densk [106]

Your answer is A. When doing negatives, the smaller number is actually greater.
Hope this Helps!
A thanks and/or brainliest would be appreciated :D

4 0

3 years ago

Read 2 more answers

what is the sum of a 7-term geometric series if the first term is negative 11 the last turn is -45056 and the common ratio is -4

patriot [66]

For a geometric sequence with common ratio $r$ , we have

$a_n=a_{n-1}r$

that is, the $n$ -th term in the sequence is the product of the previous term and the common ratio $r$ . So

$a_n=a_{n-1}r=a_{n-2}r^2=\cdots=a_1r^{n-1}$

Then the sum of the first 7 terms is

$S_7=\displaystyle\sum_{n=1}^7a_n=a_1+a_2+\cdots+a_7$
$\implies S_7=a_1+a_1r+\cdots+a_1r^6$

Notice that

$S_7r=a_1r+a_1r^2+\cdots+a_1r^7$

so we can subtract this modified sum from $S_7$ to get

$S_7-S_7r=S_7(1-r)=a_1-a_1r^7\implies S_7=a_1\dfrac{1-r^7}{1-r}$

We're told that $a_1=-11$ and $r=-4$ , so the sum of the first 7 terms is

$S_7=(-11)\dfrac{1-(-4)^7}{1-(-4)}=144,188$

3 0

3 years ago

how many integers from 100 to 999, inclusive, don't include the numbers 2,4,6,8? PLS HELP I WILL MARK BRAINLIEST

UNO [17]

Answer:

243

Step-by-step explanation:

999-100= 899 integers

200s 400s 600s 800s excluded so 400 numbers excluded

899 - 400 = 499

20s 40s 60s 80s which are 40 integers x 4 = 160

499 - 160 = 339

2s 4s 6s 8s which are 4 integers x 6 x 4 ( 4 from each 100 ) = 96

339 - 96 = 243 integers

7 0

2 years ago

It is the morning of the sandcastle-building competition at the beach. Dory has been looking forward to this event for months. A

zvonat [6]

One way is by comparing the weather for today as compared to the rest of the week or month.

6 0

2 years ago

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Point P is the center of dilation. Triangle S T U is dilated to create triangle S prime T prime U prime. The length of P T is 2.

Stels [109]

Answer:

A and D

Step-by-step explanation:

i took the quiz

6 0

2 years ago

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