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
snow_tiger [21]
3 years ago
15

Find the sum and express it in simplest form (-y^3-y+1)+(-7y^3-6y-5)

Mathematics
1 answer:
Katen [24]3 years ago
4 0

Answer:

( -  {y}^{3}  - y + 1) + ( - 7 {y}^{3}  - 6y - 5) \\  = ( - 1 - 7) {y}^{3}  - (1 + 6)y + (1 - 5) \\  =  - 8 {y}^{3}  - 7y - 4

You might be interested in
For circle O, mCD=125° and m
Burka [1]

CA is a diameter of the circle, so m\widehat{AC}=180^\circ, which means m\angle AOB=m\angle AOD=m\widehat{AD}=180^\circ-m\widehat{CD}=55^\circ. Then m\boxed{\angle ABO}=90^\circ-55^\circ=35^\circ.

This means m\angle CBO=55^\circ-35^\circ=20^\circ. Also, if m\angle AOB=55^\circ, then m\angle BOC=180^\circ-55^\circ=125^\circ, which in turns tells us that m\boxed{\angle BCO}=180^\circ-20^\circ-125^\circ=35^\circ.

3 0
3 years ago
On Saturday, Mark sold gallons of lemonade. On the same day, Regan sold as much
zhenek [66]

The quantity of lemonade Regan sold on Saturday is 11/4 gallons

<h3>How to solve fraction?</h3>

  • Mark = 2 7/8 gallons
  • Regan = 2/3 gallons as much as mark

Amount of lemonade Regan sold = 2 7/8 × 2/3

= 23/8 × 2/3

= 66 / 24

= 11/4 gallons

Complete question:

On Saturday, Mark sold 2 7/8 gallons of lemonade. On the same day, Regan sold 2/3 as much lemonade as Mark. How much lemonade, in gallons did Regan sell?

Learn more about fraction:

brainly.com/question/14453317

#SPJ1

3 0
2 years ago
Geometry help will give brainliest
Burka [1]
M<b=19 (Supplementary Angles)
m<c=101 (Triangle Angle Sum Theorem)
4 0
3 years ago
What is the explicit formula for the sequence 10, 15, 22.5, 33.75, …?
Flura [38]

Answer:

Step-by-step explanation:

Since there's no one one number you can add to one number in the sequence to get to the next number, this is not arithmetic. It must be geometric. We need then to find the common ratio. Let's start with the first 2 numbers, find a ratio, and then use it to test for accuracy.

10x = 15 and

x = \frac{15}{10}=\frac{3}{2} If this is in fact a geometric sequence witha common ratio of 3/2, we should be able to multiply 15 by 3/2 to get to the next number in the sequence. Let's try it out:

15(\frac{3}{2})= \frac{45}{2}=22.5 Good. So the common ratio is 3/2. The formula for an explicit geometric formula is

A_n=a_1(r)^{n-1 where a1 is the first number in the sequence and r is the common ratio. Filling in:

A_n=10(\frac{3}{2})^{n-1

8 0
3 years ago
stephanie invests $3,991 in a retirement account with a fixed annual interest rate of 6% compound continuously. What will the ac
wolverine [178]

Answer:

7103.98

Step-by-step explanation:

1) 3991 × 6% = 239.46 intrest rate of a year

2) 239.46 × 13 = 3112.98 intrest rate of 6% for 13yrs

3) 3991 + 3112.98 = 7103.98 Stephanie account balance after 13 yrs

3 0
3 years ago
Other questions:
  • A gun shop sells gunpowder. Monthly demand for gunpowder is normally distributed,averages 20 pounds, and has a standard deviatio
    11·1 answer
  • Find the maximum and minimum values attained by f(x, y, z) = 5xyz on the unit ball x2 + y2 + z2 ≤ 1.
    11·1 answer
  • Please help me as soon as possible
    15·2 answers
  • What is the median of 12,8,5,6,1,10,13,11
    10·1 answer
  • If si A / 1+ cosA 1+cosA / sin A = 4, prove A = 30​
    14·1 answer
  • What inequalities are shown by this graph?​
    5·2 answers
  • Can anyone help me with this math equation??
    10·1 answer
  • Which set(s) of numbers does 81−−√ belong to? Choose all that apply Natural numbers
    11·1 answer
  • ANYONE PLEASE HELP ME WITH MY HOMEWORK BECAUSE I HAVE TO PASS IT LATER I HOPE Y’ALL CAN HELP ME:(
    8·1 answer
  • Find the area. What type of triangle is triangle ABC?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!