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
nataly862011 [7]
3 years ago
8

Which statement best describes f(x) = -2 times the square root of x-7+1

Mathematics
1 answer:
BigorU [14]3 years ago
5 0

Answer:

f(x) = -2*sqrt(x - 7 + 1)

Step-by-step explanation:

If by "statement" you mean equation, then it's pretty self-explanatory. Sorry if I'm confused though, you probably didn't list the proper choices.

You might be interested in
The expression sin 57° is equal to
ValentinkaMS [17]

Answer:

cos(33^{\circ})

Step-by-step explanation:

Given

sin(57^{\circ})

Required

Determine an equivalent expression

In trigonometry:

sin(\theta)= cos(90^{\circ} - \theta)

In sin(57^{\circ})

\theta=57^{\circ}

Substitute 57^{\circ} for \theta

in sin(\theta)= cos(90^{\circ} - \theta)

sin(57^{\circ})= cos(90^{\circ} - 57^{\circ})

sin(57^{\circ})= cos(33^{\circ})

Hence, the equivalent expression is: cos(33^{\circ})

5 0
3 years ago
A sound wave is traveling at 6,420m/s and has a frequency of 600Hz. What is the wavelength?
GaryK [48]

Answer:

10.7 m

Step-by-step explanation:

Given that,

The speed of a sound wave, v = 6,420 m/s

The frequency of the wave, f = 600 Hz

We need to find the wavelength of the wave. We can find it using the below relation as follows :

v=f\lambda\\\\\lambda=\dfrac{v}{f}\\\\\lambda=\dfrac{6420}{600}\\\\\lambda=10.7\ m

So, the wavelength of the sound wave is equal to 10.7 m.

4 0
3 years ago
Cot (15 degrees)
STatiana [176]

Answer:

Part I: cot(15 degrees) = cot(45 - 30)

Part II: Evaluation is below

Step-by-step explanation:

<em>Everything is done in degrees</em>

<em />

Two angles that differ by 15 degrees that is easy to evaluate is 30 degrees and 45 degrees. The cot(15 degrees) = cot(45 - 30) = 1/tan(45-30) = (1+tan45tan30)/(tan30 - tan45) = (1+ sqrt(3))/(sqrt(3) - 1)

We rationalize this by multiplying 1+ sqrt(3) in the top and bottom, getting:

(4 + 2sqrt(3))/2 = 2 + sqrt(3)

I hope this helps! :)

8 0
2 years ago
In which quadrant of the coordinate graph does point J lie?
tia_tia [17]

J lies in Quadrant II.

7 0
2 years ago
Read 2 more answers
How to solve 3y+6=5y-18
MariettaO [177]

Answer:

y = 14

Step-by-step explanation:

move 5y over to the left and you should get -2y +6=-18. subtract 6from both sides and you will now have -2y=-24. divide bothe sides from -2 and you will get y=14

4 0
3 years ago
Read 2 more answers
Other questions:
  • 12x²-7x+10=0 by quadratic formula
    15·1 answer
  • 4/5 - 2/7 find difference
    13·2 answers
  • 5. If 2x - y = 10 then for x= 8 what is the value of y?<br>a) 7<br>b) 6 <br>C) 5<br>d) 4​
    10·1 answer
  • There are 390 sixth graders at Fairview Middle School. If 1/5 of the sixth graders have a pet fish and 2/3 have a pet dog, how m
    9·1 answer
  • A researcher wants to examine the effect of caffeine on sleep. She splits participants into two groups. The first group drinks c
    12·1 answer
  • Find the slope of the line. ​
    10·2 answers
  • The ratio of men to women working for a company is 5 to 4. If there are 261 employees total, how many men work for the company?
    5·1 answer
  • The cost function for a backpack company is C(x) = 23x + 3900 and the revenue function is R(x) = 35x. Identify the Fixed cost
    12·1 answer
  • Which equation represents a population of 370 animals that increases at an annual rate of 11% ?
    5·1 answer
  • 600 is how many times as much as 20?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!