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
Assoli18 [71]
3 years ago
10

Given g(x)=-2x-1g(x)=−2x−1, find g(-4)g(−4)

Mathematics
1 answer:
nydimaria [60]3 years ago
4 0

Answer:

7

Step-by-step explanation:

You might be interested in
PLEASE HELP ME PRE CAL/TRIG
miss Akunina [59]

Answer:

A) 60 Degrees

B) 550 Feet

C) 2.5 minutes

Step-by-step explanation:

a) So the wheel has completed one revolution in 10 minutes so lets first divide 100 secs with 10 minutes to calculate the the fraction of revolution

1 min = 60 secs

10 min = 600 secs

100/600 = 1/6

One complete revolution is 360 degrees and 1/6 of 360 degrees will be 60 degrees .

360/6 = 60°

b)  It takes 10 minutes to complete one revolution so if the person is on it for 7 minutes it would be 7/10 of a revolution . The ferris wheel has a diameter of 250 feet so the radius will be 125 feet because it is the half of the diameter and the circumference will be 250 π . To calculate the distance lets multiple the fraction of the revolution which is 7/10 into the circumference \frac{7}{10} * (250 pi) = 550 Feet.

C)It took 10 minutes to travel 250 π now we will use this relation to calculate 200 feet . lets suppose t is for time .

\frac{250pi}{10} =\frac{200}{t}.

After solving this equation as there is only one unknown which is "<em>t</em> "the answer will be 2.5 minutes.

3 0
3 years ago
What is the justification for the first step in proving the formula for factoring the sum of cubes?
Anna11 [10]

Explanation:

The formula isnt correctly written, it should state:

a^3+b^3 = (a+b)(a^2-ab+b^2)

You have to start from (a+b)(a^2-ab+b^2)  and end in a³+b³. On your first step, you need to use the distributive property.

(a+b)(a^2-ab+b^2) = a*(a^2-ab+b^2) + b*(a^2-ab+b^2)

This is equal to

a*a^2-a*(ab) + a*b^2 + b*a^2-b*(ab) + b*b^2 = a^3 - a^2b + ab^2 +ba^2 -b^2a +b^3

Note that the second term, -a²b, is cancelled by the fourth term, ba², and the third term, ab², is cancelled by the fifht term, -b²a. Therefore, the final result is a³+b³, as we wanted to.

5 0
4 years ago
Multiple choice: Which of the following angles, when drawn in
const2013 [10]

Answer:

Step-by-step explanation:

4

6 0
3 years ago
Give the coordinates of Point P without using any new variables. <br><br> (Please show your work.)
poizon [28]

Answer:

(a-b, c)

Step-by-step explanation:

The midpoints of the two diagonals are the same, so we have ...

(P + (-a, 0))/2 = (O +(-b, c))/2

Multiplying by 2 and subtracting (-a, 0), we get ...

P = (0, 0) +(-b, c) -(-a, 0)

P = (a-b, c)

7 0
3 years ago
Angel is picking blackberries in her backyard for a delicious pie. She can pick 9 blackberries in 2 minutes. If she needs 95 bla
Xelga [282]

Answer:

21.1 min

Step-by-step explanation:

6 0
3 years ago
Other questions:
  • current rules for telephone area codes allow the use of digits 2-9 for the first digit and 0-9 for the second and third digits.
    8·1 answer
  • What shape does a quadratic function have when graphed
    15·1 answer
  • A circle is described by the equation x2 + y2 + 14x + 2y + 14 = 0. What are the coordinates for the center of the circle and the
    13·1 answer
  • What is tue domain and range
    13·1 answer
  • The interior angles formed by the sides of a hexagon have measures that sum to 720°. What is the measure of angle F?
    15·1 answer
  • Please do the area and perimeter for both questions! And if u can please explain how! Thank you
    9·2 answers
  • If XYZ congruent to DEF the what corresponding angle is congruent to angle x (enter your answer using the angle letter only)
    5·2 answers
  • The natural numbers are a subset of all of the following sets except the _____.
    15·2 answers
  • I need new friends :(. P.S. STOP MISTAKING ME FOR A BOY!
    6·1 answer
  • The 6% state<br> income tax<br> on a $72,000<br> salary
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!