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
scoray [572]
3 years ago
11

What does (3x+7)(3x−7) equal

Mathematics
1 answer:
snow_tiger [21]3 years ago
7 0

Answer:

9x^2 - 49

Step-by-step explanation:

You might be interested in
Brad is a distance runner who wants to design the most effective workout
dimulka [17.4K]

Answer:

Step-by-step explanation:

6 0
3 years ago
Everything is in the picture please help asap.
NARA [144]

Answer:

f(x)=x^2

Step-by-step explanation:

All three functions in the figure are parabolic and thus share the parent function y=x^2. They are horizontally dilated by some constant (unless they aren't) and can all be represented with y=\pm ax^2, where a is some constant.

Plug in point the line passes through to find that constant. For f(x), we can see the function clearly passes through (2,4):

4=a\cdot 2^2,\\4=4a,\\a=1

Therefore, the function of f(x) is f(x)=1x^2=\boxed{x^2}

8 0
3 years ago
What are the roots of the polynomial equation XP-7x= 6x-12? Use a graphing calculator and a system of equations.
Julli [10]

Answer: option B

Step-by-step explanation:

-4, 1, 3

6 0
3 years ago
Anna runs 6 1/4 miles in 1 1/4hours. What is her rate in miles per hour?
fgiga [73]

Answer:

5 miles per hour

Step-by-step explanation:

Anna runs 6 1/4 miles in 1 1/4hours. What is her rate in miles per hour?

          6 1/4 miles  /  1  1/4 hours    =

          25/4 miles /   5/4 hours      =

                  5 mph   or  miles per hour  or miles/hour

7 0
3 years ago
a ball is thrown into the air with a velocity of 40 ft/s, its height in feet seconds later is given by y=40t-16t^2. a) Find the
Scorpion4ik [409]
V(t) = dy/dt = 40 - 32t
ai). average velocity = (v(0.5) - v(0))/(0.5 - 0) = ((40 - 32(0.5)) - (40 - 32(0)))/0.5 = (40 - 16 - 40)/0.5 = -16/0.5 = -32m / s

ii). average velocity = (v(0.1) - v(0))/(0.1 - 0) = ((40 - 32(0.1)) - (40 - 32(0)))/0.1 = (40 - 3.2 - 40)/0.1 = -3.2/0.1 = -32m / s

iii). average velocity = (v(0.05) - v(0))/(0.05 - 0) = ((40 - 32(0.05)) - (40 - 32(0)))/0.05 = (40 - 1.6 - 40)/0.05 = -1.6/0.05 = -32m / s
5 0
4 years ago
Other questions:
  • In March, Delphine's house had 40% more snowfall than in February. Delphine's house had f centimeters of snowfall in February.
    14·2 answers
  • X-8/5=2/4 solve the proportion
    11·1 answer
  • Put into scientific notation: 0.0000483
    12·1 answer
  • Find a common denominator for each group of fractions.
    6·1 answer
  • The temperature decreased from 71.5*F to 56.8*F overnight. How much did the temperature drop?
    5·2 answers
  • 32 over 9 converted to a mixed number
    6·2 answers
  • Using the formula in model 1, choose the correct answers for the total amount and amount of interest earned in the following com
    11·2 answers
  • a rectangle is 7 cm long and 3 cm wide. what is the area in square centimeters of the rectangle? DO NOT ENTER UNITS
    9·1 answer
  • Is -3/-5 equal to 3/5
    13·1 answer
  • Factor 21x + 15y=....<br> Please show how you got your answer.
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!