1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
slamgirl [31]
3 years ago
8

N^2+7n+15=5 show work please

Mathematics
2 answers:
ElenaW [278]3 years ago
4 0
<span>n^2+7n+15=5
n^2 + 7n + 10 = 0
(n + 5)(n + 2) = 0
n + 5 = 0
n = -5
n + 2 = 0
n = -2

Answer: n = -5 and -2</span>
Alex Ar [27]3 years ago
4 0
n^2+7n+15=5

n^2+7n=-10

n^2+7n+(\frac{7}{2})^2=-10+(\frac{7}{2})^2

n^2+7n+\frac{49}{4}=-10+\frac{49}{4}

(n+\frac{7}{2})^2=\frac{9}{4}

n+\frac{7}{2}=\sqrt{\frac{9}{4}}

n=-\frac{7}{2}+\sqrt{\frac{9}{4}}

n=-2
n=-5
You might be interested in
If the weight of a class 4 truck is increased by two tons will it still be classified as a class 4 truck
Assoli18 [71]
If the truck is 14,000 pounds and increases by 2 tons yes.  However if it is above 14,000 then no it will not be a class 4 truck.
8 0
3 years ago
Consider the following incomplete deposit ticket:
boyakko [2]

Answer:

B) 105.20

Step-by-step explanation:

491.60 + 157.68 - 68.44 = 581.20

6 0
3 years ago
Read 2 more answers
The following data summarizes results from 945 pedestrian deaths that were caused by accidents. If one of the pedestrian deaths
VikaD [51]

Answer:

37.67% probability that the pedestrian was intoxicated or the driver was intoxicated.

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

In this question:

945 accidents.

In 64 of them, the pedestian was intoxicated.

In 292 of them, the driver was intoxicated.

Probability that the pedestrian was intoxicated or the driver was intoxicated.

(64+292)/945 = 0.3767

37.67% probability that the pedestrian was intoxicated or the driver was intoxicated.

6 0
3 years ago
Express 24/40 and 18/42 in their simplest forms.Show your works
Maru [420]

Answer:

24/40 = 4/5

18/42 = 3/7

Step-by-step explanation:

Sana makatulong

7 0
2 years ago
Read 2 more answers
2/15<br> ÷<br> 1/30<br> brainliest to the person who gets it correct and fast
muminat

Answer:

4

Step-by-step explanation:

we know that 2/15 : 1/30 = 2/15 * 30 = 60/15 = 4

3 0
2 years ago
Read 2 more answers
Other questions:
  • Please help!! Find the slope (-5, -2), (-3, -6)
    6·1 answer
  • I need help again please help
    6·1 answer
  • List the next three terms in the following sequence:
    13·1 answer
  • Ben said the graph of the inequality
    8·1 answer
  • What is the rescursive formula for this geometric sequence? 7, -14, 28, -56
    6·2 answers
  • Ana is retiring next year from the school that she has taught at for the last 25 years. Her pension pays a monthly salary of $1,
    5·2 answers
  • The answer is<br><br> 7 m5– 3 m3 + 0 m – 3
    6·2 answers
  • Is -2/3 and -0.8 greater than, less than, or equal to?
    12·1 answer
  • Please help me with this sum​
    13·2 answers
  • Consider a function that goes through the two points (0, 5) and (1, 20). Find the formula for the function if(a) the function is
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!