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
Gnoma [55]
2 years ago
12

Jane evaluates x squared minus 3 x + 5 for x = negative 2 below. Step 1: (negative 2) squared minus 3 (negative 2) + 5 Step 2: E

quals negative 4 + 6 + 5 Step 3: Equals 7 What, if any, was Jane's mistake?
Mathematics
1 answer:
rjkz [21]2 years ago
4 0

Answer:

Kindly check explanation

Step-by-step explanation:

Given the question :

Jane evaluates x squared minus 3 x + 5 for x = negative 2 below. Step 1: (negative 2) squared minus 3 (negative 2) + 5 Step 2: Equals negative 4 + 6 + 5 Step 3: Equals 7 What, if any, was Jane's mistake?

Jane's evaluation :

x² - 3x + 5 for x = - 2

Step 1:

(-2)² - 3(-2) + 5

Step 2:

-4 + 6 + 5

Step 3 :

= 7

Jane's mistake was in STEP2,

evaluating (-2)² = 4 and not - 4

Hence, (-2)² - 3(-2) + 5

= 4 + 6 + 5

= 15

You might be interested in
If f(x) = 7 + 4x and g(x)=1/2x, what is the value of (f/g)(5)?
Anestetic [448]
f(x)=7+4x;\ g(x)=\dfrac{1}{2}x\\\\\left(\dfrac{f}{g}\right)(x)=\dfrac{f(x)}{g(x)}=\dfrac{7+4x}{\frac{1}{2}x}=\dfrac{2(7+4x)}{x}=\dfrac{14+8x}{x}\\\\\left(\dfrac{f}{g}\right)(5)=\dfrac{f(5)}{g(5)}=\dfrac{14+8\cdot5}{5}=\dfrac{14+40}{5}=\dfrac{54}{5}=10.8
8 0
2 years ago
Read 2 more answers
The sides of a square are increased by a scale factor of 6. The perimeter of the smaller square is 10 ft. What is the perimeter
inn [45]

Answer:

60ft

Step-by-step explanation:

I have not  done this kind of work in a while but if you scale each side of the square by 6 is should increase to a perimeter of 60ft

4 0
3 years ago
Please HELP me I need it :)
kakasveta [241]
The answer is C. 1

You can just plug in the different answers for x and see which one equals zero.

F(1) = 1 + 4 + 1 - 6 = 0
6 0
3 years ago
Read 2 more answers
I need help please i need step by step help
melomori [17]
Mmmmbrntnrjneuneunre unenriched
3 0
2 years ago
Read 2 more answers
The distance (d) in meters that an ant can travel varies directly with the amount of time (t) in hours it spends walking.assume
san4es73 [151]

Answer:

d = 3  meters

Step-by-step explanation:

d = rt where d is the distance t is the time and r is the constant of proportionality

d = 18t

Changing 10 minutes to hours

10 minutes * 1 hours / 60 minute = 1/6 hour

d = 18 * 1/6 hour

d = 3  meters

7 0
3 years ago
Other questions:
  • The telephone company offers two billing plans for local calls. Plan 1 charges $29 per month for unlimited calls and Plan 2 char
    6·1 answer
  • For women aged​ 18-24, systolic blood pressures are normally distributed with a mean of 114.8 mm Hg and a standard deviation of
    9·1 answer
  • Which is bigger 3/4 or 2/3
    11·2 answers
  • Please help please help
    10·1 answer
  • 23. Solve for x.<br> 10<br> х<br> 12<br> 13
    13·1 answer
  • Ella is putting her savings into a retirement fund that will compound her $7000 semiannually at 7% interest. How much will her r
    10·1 answer
  • Select ALL the correct answers.
    15·1 answer
  • Find the sum of (x²+3xy+y²)+(x³+3x²y+2xy²+y³)​
    15·1 answer
  • During December, the average daily temperature in a town is 21.7°C. The average
    13·1 answer
  • Each day tarquin ate 25% of his chocolate.After 4 days he had 1620 chocolate left.How many chocolates did u initially have?​
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!