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
docker41 [41]
3 years ago
9

Evaluate 7 + (-4x2) for x = 0

Mathematics
2 answers:
STatiana [176]3 years ago
6 0
<span>7 + (-4x2)
Substitute 0 for x
7 + (-4(0)2)
Multiply 2 by 0
7 + (-4(0))
Multiply -4 by 0
7 + 0
Add
Final Answer: 7</span>
aalyn [17]3 years ago
4 0
7+(-4(0)^2)
7+(-4(0))
7+0
7
You might be interested in
I don't get this at all some one explain please
Lisa [10]
The answer is B u put them all in a fraction and put them in simpliest form and all the answers in B come up to 7 over 8
4 0
3 years ago
Car traveling at 262.5 miles in 31/2 hours what was the car speed
lidiya [134]

Its 75 miles per hour hope you understand

6 0
3 years ago
Leon has $40 How many Mexican pesos can Leon buy with his dollars<br><br> Show work plz
tatuchka [14]
12x40=480
You can first multiply 12x4=48 and then you could put a zero next to the 8
5 0
2 years ago
How do you solve 3x^6- 39x^4+ 108x^2= 0
ArbitrLikvidat [17]
You can first take out an x^2 from each number , 3x^6 - 39x^4 + 108x^2 = x^2 ( 3x^4 - 39x^2 + 108) Then just factor and solve for the zero's of the equation
6 0
3 years ago
A sample of 64 observations has been selected to test whether the population mean is smaller than 15. The sample showed an avera
KengaRu [80]

Answer:

Test statistic = - 0.851063

- 2.520463

Step-by-step explanation:

H0 : μ ≥ 15

H1 : μ < 15

Sample mean, xbar = 14.5

Sample standard deviation, s = 4.7

Sample size = 64

Teat statistic :

(xbar - μ) ÷ (s/√(n))

(14.5 - 15) ÷ (4.7/√(64))

= - 0.851063

The critical value at α = 0.05

Using the T - distribution :

Degree of freedom, df = 64 - 1 = 63

Tcritical(0.05, 63) = 1.6694

Test statistic - critical value

-0.851063 - 1.6694

= - 2.520463

8 0
3 years ago
Other questions:
  • What is the equation, in point-slope form, of the line that is perpendicular to the given line and passes through the point (2,5
    10·1 answer
  • 5 is 42 percent of what number
    12·2 answers
  • What is the slope of your line perpendicular to y=5x-12
    10·2 answers
  • HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! 20 points!!!!!!
    11·2 answers
  • Thank you plz help hurry
    12·1 answer
  • Plot all of the existing five features of the following rational function (some may not
    7·1 answer
  • Help me please thanks​
    7·1 answer
  • Aidan buys 3 bicycles for $252. Each bicycle was the same price.
    6·2 answers
  • Which fraction is equivalent to -3/2
    6·2 answers
  • Please help! (giving extra points)
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!