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
I am Lyosha [343]
3 years ago
13

Add. (3t - 3) + (6t2 + 4t + 13) + (-8t2 + 11t - 1)? A) -2t2 + 18t + 9 B) -2t4 + 182 + 9 C) 2t4 - 18t - 9 D) 2t4 + 18t + 9

Mathematics
1 answer:
azamat3 years ago
8 0

Let's simplify step-by-step.

3t−3+6t2+4t+13−8t2+11t−1

=3t+−3+6t2+4t+13+−8t2+11t+−1

Combine Like Terms:

=3t+−3+6t2+4t+13+−8t2+11t+−1

=(6t2+−8t2)+(3t+4t+11t)+(−3+13+−1)

=−2t2+18t+9



You might be interested in
In a circle of radius 10 cm, a sector has an area of 40 (pi) sq. cm. What is the degree measure of the arc of the sector?
Rashid [163]

Answer:

144°

Step-by-step explanation:

First, find the area of the circle, with the formula A = \pir²

Plug in 10 as the radius, and solve

A = \pir²

A = \pi(10²)

A = 100\pi

Using this, create a proportion that relates the area of the sector to the degree measure of the arc.

Let x represent the degree measure of the arc of the sector:

\frac{40\pi }{100\pi } = \frac{x}{360}

Cross multiply and solve for x:

100\pix = 14400\pi

x = 144

So, the degree measure of the sector arc is 144°

6 0
3 years ago
Read 2 more answers
100 POINTS
ivann1987 [24]

Step-by-step explanation:

1. k = 76°

2. r = 25cm

3. as the drawing attached

one pair of parallel lines : AB and DC

one pair of equal angles : <em>L</em><em> </em>A and <em>L</em><em> </em>D

4. (7²× 3`¹)⁴×7^5 / (3² × 7^(-6))³

= (7^8 × 3`⁴)×7^5/ (3² × 7^(-6))³

= (7^13 × 3`⁴)/ (3^6 × 7^(-18))

= (7^(31) × 3^(-10))

= 7^31 / 3^10

3 0
2 years ago
Need help ASAP to this math question about how many gallons it will take to fill a pool
NARA [144]
1 cubic foot = 7.48 gallons

hence
\frac{7.48 gal}{1 ft^3} =1

unit conversion
\frac{3000 ft^3}{} \times \frac{7.48 gal}{1 ft^3} =  3000 \times 7.48 gal

3000 x 7.48 =22440
3 0
2 years ago
A collection of 36 shirts and 42 jackets contains 842 buttons. A collection of 66 shirts and 77 jackets contains 137 buttons. Ea
Vlada [557]
There are 102 shirts. There are 979 buttons in all. There are 119 jackets in all. All to there are 8 buttons in a jacket
8 0
3 years ago
Read 2 more answers
If mZDEF = 115, then what are mZFEG and mZHEG? The diagram is not to scale.
stepan [7]

Answer:

the answer is c

Step-by-step explanation:

Im guessing but i hope you get it right im not that smart sooooo ye srry

6 0
3 years ago
Other questions:
  • Hannah invested $4000 in a savings account that that earned 2% interest compounded quarterly. she determined that if she does no
    7·1 answer
  • Customers can pick their own pumpkins at the great pumpkin patch. They pay $4 to enter and $3 per pound for the pumpkins they pi
    5·2 answers
  • The owner of a music store gathered data from several schools about the number of students in their concert and marching bands.
    12·1 answer
  • A counter in Brendan's kitchen is 1 yard wide and 3 yards long. Brendan wants to replace the counter with a granite countertop,
    6·1 answer
  • A triangle has sides with lengths 10 inches, 14 inches, and 17 inches. is it a right triangle
    13·1 answer
  • Given ΔABC, m∠C = 90° , m∠ ABC = 30° , AL ∠ Bisector CL = 6ft. Find LB (Feet)
    5·2 answers
  • Solve each equation for the unknown <br>1. 5 + y = 7.<br>2. 3.8 = a + 2.5<br>5. + p = 9 1/3 ​
    10·2 answers
  • A company purchases a computer system for $3000. The value of the system is decreasing at a rate of 15% per year. What is the va
    15·1 answer
  • X increased by 8 = <br> What is it?
    10·2 answers
  • What is the slope of the line that passes through (-4,2) and (6,-8)
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!