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juin [17]
2 years ago
9

What is -7 + -9 A. -16 B. -2 C. 2 D. 16​

Mathematics
2 answers:
nataly862011 [7]2 years ago
3 0

Answer:

is A. -16

Step-by-step explanation:

Irina-Kira [14]2 years ago
3 0

Answer: A. -16

Step-by-step explanation: −7+−9

−16

Because since its the same sign you keep it and add it.

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Please help due in 10 min.
sleet_krkn [62]

Answer:

A: equiangular   S: Right

Step-by-step explanation:

5 0
2 years ago
the hardware store where you work charges .80 cents including tax for a pound of nails. a customer purchases 5 3/4 pounds of nai
kkurt [141]

Answer:

$4.60

Step-by-step explanation:

The customer will pay $0.80 per pound.  They are buying 5 and 3/4 pounds of nails, so they will pay..

$0.80(5) + $0.80(3/4) for the nails...now simplify...

$4.00 + $0.60 = $4.60

7 0
3 years ago
Read 2 more answers
What is the explict rule for the sequence 12,22,32,42​
icang [17]

The explicit rule for given sequence is:

a_n=2+10n

Further explanation:

We have to determine first of all if the sequence is arithmetic or geometric.

  • If the difference of two consecutive terms is same then the sequence is arithmetic sequence
  • If the ratio of two consecutive terms is same then the sequence is geometric sequence

Given sequence is:

12,22,32,42​

a_1=12\\a_2=22\\a_3=32\\.......\\Let\\d=Common\ difference\\d=a_2-a_1=22-12=10\\d=a_3-a_2=32-22=10

The common difference is 10 which is same for all consecutive terms. So the sequence is an arithmetic sequence.

The general formula for arithmetic sequence is:

a_n=a_1+(n-1)d\\Here,\\a_n\ is\ the\ nth\ term\\a_1\ is\ the\ first\ term\\d\ is\ the\ common\ difference

Putting the values of a1 and d

a_n= 12+(n-1)(10)\\a_n=12+10n-10\\a_n=2+10n

The explicit rule for given sequence is:

a_n=2+10n

Keywords: Arithmetic sequence, Common Difference

Learn more about arithmetic sequence at:

  • brainly.com/question/1522572
  • brainly.com/question/2491745

#LearnwithBrainly

8 0
2 years ago
0.52+0.15=0.52+x????
pychu [463]
What I did is to add 0.52
+0.15
then try to find what could equal the same amount with 0.52
4 0
3 years ago
Read 2 more answers
Divide. Write your answer as a fraction in simplest form.<br><br> 9/10÷(−6/5)=
bulgar [2K]

Answer:

-\frac{3}{4}

Step-by-step explanation:

1.\frac{9}{10}×-\frac{5}{6}

2.-\frac{3}{4}

3 0
3 years ago
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