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
Anna [14]
3 years ago
9

9x - 3 + x² , when x = 4

Mathematics
2 answers:
Fiesta28 [93]3 years ago
8 0

Answer:

49

Step-by-step explanation:

hope this helps

9(4)-3+4^2

36-3+4^2

33+4^2

33+16

49

Step2247 [10]3 years ago
5 0

Step-by-step explanation:

=9x-3+x²

=9×4-3+4²

=36-3+16

=49

hope it helps.

You might be interested in
Rewrite the function by completing the square f(x)=x^2-4x-26
leonid [27]

Answer:

(x - 2)² - 30

Step-by-step explanation:

To complete the square

add/subtract ( half the coefficient of the x- term )² to x² - 4x

f(x) = x² + 2(- 2)x + 4 - 4 - 26 = (x - 2)² - 30

8 0
3 years ago
I NEED HELP WITH THIS PLEASE!!!!!
kumpel [21]

Answer:

nt ooooo

o

Step-by-step explanation:

5 0
3 years ago
Only smart bros know the answer
dimulka [17.4K]

Answer:

33.47

Step-by-step explanation:

i rounded it the real answer is 33.46666667∞

7 0
3 years ago
The length and width of a rectangle are measured as 55 cm and 49 cm, respectively, with an error in measurement of at most 0.1 c
valentina_108 [34]

Answer:

The maximum error in the calculated area of the rectangle is 10.4 \:cm^2

Step-by-step explanation:

The area of a rectangle with length L and width W is A= L\cdot W so the differential of <em>A</em> is

dA=\frac{\partial A}{\partial L} \Delta L+\frac{\partial A}{\partial W} \Delta W

\frac{\partial A}{\partial L} = W\\\frac{\partial A}{\partial W}=L so

dA=W\Delta L+L \Delta W

We know that each error is at most 0.1 cm, we have |\Delta L|\leq 0.1, |\Delta W|\leq 0.1. To find the maximum error in the calculated area of the rectangle we take \Delta L = 0.1, \Delta W = 0.1 and L=55, W=49. This gives

dA=49\cdot 0.1+55 \cdot 0.1

dA=10.4

Thus the maximum error in the calculated area of the rectangle is 10.4 \:cm^2

4 0
3 years ago
State the x- and y-intercepts of
Makovka662 [10]
The x intercept is (5,0)
The y intercept is (0,2)
8 0
3 years ago
Other questions:
  • How to determine the smallest absolute value
    6·1 answer
  • Which statement about corresponding sides and angles of the two polygons is correct?
    6·2 answers
  • 2z-18-4z=-8 what is the value of z
    15·1 answer
  • What are two equivalent equations for<br> x(5x-6)+13x-10
    7·1 answer
  • I really need the answers to these math problems
    14·1 answer
  • Write an equation in slope for a line that passes through (3,4) (and has a y intercept of -8)
    14·1 answer
  • If DE= 4x–1, EF= 9, and DF= 9x–22 , find the value of x
    9·1 answer
  • Brenna saved 36% on a $15 pair of sunglasses. Choose the correct expression to find 36% of $15.
    15·2 answers
  • What negative 8 in graphing
    5·1 answer
  • Factor the given polynomial completely \. If the polynomial cannot be factored, say that is prime. y^4+10y^3+16y^2
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!