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
sdas [7]
4 years ago
6

Question 1

Mathematics
1 answer:
ASHA 777 [7]4 years ago
6 0
Question 1 Simplify the following expression: (5x2 + 3x + 4) − (2x2 − 6x + 3). If the final answer is written in the form Ax2 + Bx + C, what is the value of B?

Solution:

5x^2 + 3x + 4 - 2x^2 + 6x - 3 = 3x^2 + 9x + 1

Then, B = 9

Question 2
Simplify: (3x2 − 2) + (2x2 − 6x + 3)

5x2 − 6x + 1

5x2 − 6x − 1

x2− 6x + 1

5x2 − 8x + 3

Solution:

3x^2 - 2 + 2x^2 - 6x + 3 = 5x^2 - 6x + 1

Question 3
A sports company conducted a road test of a new model of a geared bike. The test rider cycled (3x - 2) miles on a flat road, (x2 - 5) miles uphill, and (2x + 7) miles downhill. Which simplified expression is equivalent to the total distance, in miles, for which the bike was tested?

x2 - x

x2 + 5x

x2 − x + 14

x2 + 5x + 14

(3x - 2) + (x2 - 5) + (2x + 7) = 3x - 2 + x^2 - 5 +2x + 7 = x^2 + 5x

Question 4
Simplify: (4x − 6) − (5x + 1)

x + 7

−x + 7

x − 7

−x − 7

(4x − 6) − (5x + 1) = 4x - 6 - 5x - 1 = -x -7

Question 5
Simplify the following expression: (x + 6y) - (3x − 10y). If the final answer is written in the form Ax + By, what is the value of A?

(x + 6y) - (3x − 10y) = x + 6y - 3x + 10y = -2x + 16y

A = -2

Question 6
Simplify: (3x − 5) + (3x + 6)

6x − 1

1

6x − 11

(3x − 5) + (3x + 6) = 3x - 5 + 3x + 6 = 6x + 1


You might be interested in
90 divided by (10+(3’2 - 4)
rewona [7]

Answer:

the answer would be 222/23

4 0
3 years ago
If you want to place an 8 1/2 inch towel bar in the center of a door that is 25 1/2 inches wide, how much space will be on eithe
ivanzaharov [21]

Answer:

25 1/2- 8 1/2=17

17 divided by 2= 8.5

8.5 inches

Step-by-step explanation:

4 0
3 years ago
Two trains leave the same station at the same time, but are headed in opposite directions. One train travels at 70 mph and the o
AURORKA [14]

Answer:

4 hours

Step-by-step explanation:

I hope this helps :)

7 0
4 years ago
A psychologist is interested in constructing a 95% confidence interval for the proportion of people who accept the theory that a
elena-14-01-66 [18.8K]
Aja the same thing in the world and is
8 0
3 years ago
A wave has a frequency of 6.1 x 1014 Hz and a speed of 3.00 x 108 m/s. Use
slamgirl [31]

Answer:

(A) 4.9\times 10^{-7}\ m

Step-by-step explanation:

Given:

Frequency of the wave (f) = 6.1\times 10^{14}\ Hz

Speed of the wave (v) = 3.00\times 10^8\ m/s

The wavelength equation of the wave is given as:

\lambda=\dfrac{v}{f}

Here, \lambda \to wave\ wavelength

Now, plug in the given values and simplify.

\lambda=\frac{3\times 10^8}{6.1\times 10^{14}}\\\\\lambda=4.9\times 10^{-7}\ m

Therefore, the wavelength of the wave is option (A) 4.9\times 10^{-7}\ m

3 0
3 years ago
Other questions:
  • A manufacturing company builds construction machinery. It sells 10 machines for $18,100 and 20 machines for $26,600. Which equat
    10·2 answers
  • What is the length of the hypotenuse of a right triangle that has sides measuring 12 cm and 35 cm
    5·1 answer
  • Assume that the results of your class' statistics test are normally distributed. You know that you scored 1 standard deviation a
    5·1 answer
  • In the diagram below line EF in GH are ...?
    9·2 answers
  • Solve for x.<br><br> 4−(2x+4)=5
    13·2 answers
  • How much TV do college students watch? A survey of 361 students recorded the number of hours of television they watched per week
    9·1 answer
  • Determine the intercepts of the line.<br> y + 5 = 2(x+1)
    11·2 answers
  • Which equation is the direct variation equation if f(x) varies directly with x and f(x)=-2 when x=6
    12·1 answer
  • Algebraically, find all remaining zeros of f(x) = 8x^3 - 6x^2-36x +27 in simplest form.
    14·1 answer
  • A disc has a diameter of 23 cm the inner hole in the disc has a radius of 2 cm find the circumference for both the inner hole an
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!