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
Cerrena [4.2K]
2 years ago
7

A student performed the following steps to find the solution to the equation x^2 + 14x + 40 = 0. Where did the student go wrong?

Mathematics
2 answers:
Alja [10]2 years ago
3 0

Answer:

A. in Step 3

Step-by-step explanation:

It is factored correctly. Then separated into two smaller equations correctly. But in solving x + 10 = 0, there is an error.

x + 10 = 0

Add -10 to both sides.

x = -10

So, the error is in step 3.

bagirrra123 [75]2 years ago
3 0

Answer:

A . In Step 3.

Step-by-step explanation:

In step 3 the student went wrong

x = 4 or x = -10 is correct

( if x + 10 = 0, then x = -10)

You might be interested in
Pattern A follows the rule "add 5" and Pattern B follows the rule "subtract 2."
xxTIMURxx [149]

Answer:

(25,12)

Step-by-step explanation:

pattern A=20+5

=25

pattern B=14-2

=12

25,12

4 0
2 years ago
Mike jogged a total distance of 5 and 1 over 3 miles during the months of october and November. if mike only jogged 1 over 6 mil
Ksivusya [100]
Mike jogged a total  of A 5 and 1/3 times 1/6
your welcome.
4 0
3 years ago
Read 2 more answers
Can i get a step by step for this?
jonny [76]

Answer:

  • x = 85°

Step-by-step explanation:

<u>Sum of interior angles of any triangle is 180°:</u>

  • 52° + 43° + x = 180°
  • 95° + x = 180°
  • x = 180° - 95°
  • x = 85°
8 0
3 years ago
It takes a ball an average of 0.09 seconds to knock down 4 dominoes, how long will it take to knock down 8 dominoes?
Elina [12.6K]
Answer: 0.18 seconds
step by step explanation: if it takes 0.09 seconds to knock down 4 dominoes, and you are trying to find out how long it will take to knock down 8 dominoes, you can see that 8/4=2, so you need to multiply 0.09 times 2 to get your answer, which is 0.18 seconds.
4 0
3 years ago
A line passes through (6, 3), (8, 4), and (n, -2). Find the value of n.
timurjin [86]

Answer:

n = -4

Step-by-step explanation:

Notice how in the previous examples they all divide by 2? It is the same case here. So now the question is... "what" divided by "2" is "-2".

Let me show you:

n ÷ 2 = -2

if you know your integer math, you should know that...

-4 ÷2 = -2 (this is the correct equation)

8 0
1 year ago
Other questions:
  • Factors of 6:factors of 7:
    7·1 answer
  • If carpet cost $3.25 per square yard, how much would it cost to carpet a rectangular room that is 9 yards wide and 11 yards
    14·1 answer
  • A coach is assessing the correlation between the number of hours spent practicing and the average number of points scored in a g
    8·1 answer
  • How much interest would $2,000 earn, with simple interest, in two years at the<br>rate of 4.2%?​
    14·1 answer
  • What is <br> r squared+7r+6=0
    10·1 answer
  • Help a gorl out y’all
    12·1 answer
  • Which equation has solutions of 6 and -6
    7·2 answers
  • What is the factored form of 64g^3+8
    10·1 answer
  • Can you help me please?
    15·2 answers
  • Find the square root of 116.33 and correct to 2 decimal​
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!