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
Jobisdone [24]
3 years ago
9

Find the sum 5 + (-5) + 39

Mathematics
1 answer:
Varvara68 [4.7K]3 years ago
8 0

Hello,

Solution:

Follow PEMDAS

= 5 + (-5) + 39

= 5 - 5 + 39

= 0 + 39

= 39

Answer - 39

You might be interested in
Work out the percentage change when a price of £10 is decreased to £8
soldier1979 [14.2K]

Answer:answer is 20%

10-8 =2

2÷10×100

=20℅



Step-by-step explanation:


3 0
3 years ago
Read 2 more answers
A scuba diver starts 8 feet below sea level. She then dives down another 13 feet. Which expression gives her total number of fee
scoray [572]

I see this as a basic equation.

If she starts at point x, 8 feet, then goes down another 13, she is adding to the number of feet she traveled down.

So your answer would be 8+13=21

If this isn't what you needed, because I am not sure what math you are taking, let me know if I can help you more!


3 0
3 years ago
Read 2 more answers
For f(x)=4sin(x2) between x=0 and x=3, find the coordinates of all intercepts, critical points, and inflection points to two dec
telo118 [61]

Answer:

Intercepts:

x = 0, y = 0

x = 1.77, y = 0

x = 2.51, y = 0

Critical points:

x = 1.25, y = 4

x = 2.17 , y = -4

x = 2.8, y = 4

Inflection points:

x = 0.81, y = 2.44

x = 1.81, y = -0.54

x = 2.52, y = 0.27

Step-by-step explanation:

We can find the intercept by setting f(x) = 0

4sin(x^2) = 0

sin(x^2) = 0

x^2 = n\pi where n = 0, 1, 2,3, 4, 5,...

x = \sqrt(n\pi)

Since we are restricting x between 0 and 3 we can stop at n = 2

So the function f(x) intercepts at y = 0 and x:

x = 0

x = 1.77

x = 2.51

The critical points occur at the first derivative = 0

f^{'}(x) = 4cos(x^2)2x = 8xcos(x^2) = 0

xcos(x^2) = 0

x = 0 or

cos(x^2) = 0

x^2 = \frac{\pi}{2} + n\pi where n = 0, 1, 2, 3

x = \sqrt{\pi(n+1/2)}

Since we are restricting x between 0 and 3 we can stop at n =  2

So our critical points are at

x = 1.25, y = f(1.25) = 4sin(1.25^2) = 4

x = 2.17 , y = f(2.17) = 4sin(2.17^2) = -4

x = 2.8, y = f(2.8) = 4sin(2.8^2) = 4

For the inflection point, we can take the 2nd derivative and set it to 0

f^[''}(x) = 8(cos(x^2) - xsin(x^2)2x) = 8cos(x^2) - 16x^2sin(x^2) = 0

cos(x^2) = 2x^2sin(x^2)

tan(x^2) = \frac{1}{2x^2}

We can solve this numerically to get the inflection points are at

x = 0.81, y = f(0.81) = 4sin(0.81^2) = 2.44

x = 1.81, y = f(1.81) = 4sin(1.81^2) = -0.54

x = 2.52, y = f(2.52) = 4sin(2.52^2) = 0.27

3 0
3 years ago
RP QUESTION!!Faelyn grouped the terms and factored the GCF out of the groups of the polynomial 6x4 – 8x2 + 3x2 + 4. Her work is
m_a_m_a [10]

Answer:

Had to make a new dam account AGAIN

Step-by-step explanation:

(Btw dis is Charlie bro)

5 0
3 years ago
Read 2 more answers
I need help don’t know how to do the problem
Triss [41]

Answer:

1/9

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Other questions:
  • A box contains ten cards labeled Q, R, S, T, U, V, W, X, Y, and Z. One card will be randomly chosen.
    8·2 answers
  • What is the percent of increase of 42 is increased to 72
    9·2 answers
  • Round 38.75 to one decimal place
    12·2 answers
  • $3500 deposit earning 6.75% compounded monthly, after 6 months
    12·1 answer
  • How would i rewrite this equation so it is not in fraction form<br><br><br>-5/(1-cos(-x))
    5·1 answer
  • (x+2)2+(9-3)2=4, the radius of the circle is...
    8·1 answer
  • Rectangle with a length of 96 inches and width of 60 inches. A rug maker wants to increase each dimension by a different amount.
    13·1 answer
  • 1. 15% of the toddlers in a preschool class drink water with their lunch. How many toddlers are in the class if 3 drink water wi
    13·1 answer
  • Evaluate the expression 36.6 – 24 x 22 ÷ 3
    12·1 answer
  • At the beginning of summer, Mark has $200 in savings and Ryan has $350. The brothers have mowing jobs set up for the summer. Bec
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!