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
Sloan [31]
2 years ago
14

7y2 - 7y+ 4 -(-3y2 + 7y + 7) (Simplify your answer.)

Mathematics
2 answers:
lesantik [10]2 years ago
7 0

Answer:

10y2 -7y -3

Step-by-step explanation:

7y2 + 3y2= 10y2

-7y

4 - 7=-3

alexandr402 [8]2 years ago
3 0

Answer:

  1. 7y + 4
  2. -y - 7

Step-by-step explanation:

1. 7y2 - 7y + 4

7y × 2 = 14y

14y - 7y + 4

= <u>7y + 4</u>

2. -(-3y2 + 7y + 7)

-3y × 2 = -6y

-(-6y + 7y + 7)

-6y + 7y = 1y = y

= <u>-</u><u>y</u><u> </u><u>-</u><u> </u><u>7</u>

You might be interested in
The 13th term of a geometric sequence is 16, 384 and the first term is 4. What is the common ratio?
AleksAgata [21]

Answer:

\large \boxed{2}

Step-by-step explanation:

The formula for the nth term of a geometric sequence is

aₙ = a₁rⁿ⁻¹

In your geometric sequence, a₁ = 4 and a₁₃ = 16 384.

\begin{array}{rcl}16384 & = & 4r^{(13 - 1)}}\\16384 & = & 4r^{12}\\4096 & = & r^{12}\\3.6124 & = & 12 \log r\\0.30102 & = & \log r\\r & = & 10^{0.30102}\\ & = & \mathbf{2}\\\end{array}\\\text{The common ratio is $\large \boxed{\mathbf{2}}$}

Check:

\begin{array}{rcl}16384 & = & 4(2)^{12}\\16384 & = & 4(4096)\\16384 & = & 16384\\\end{array}

It checks.

7 0
3 years ago
What is the factor to change pounds to kilograms
aev [14]

Answer:

1 pounds is equal to 4535 kilograms.

8 0
3 years ago
Elizabeth hopes to get at least a 90 average on her science tests. She has one more test before the end of the school year. Her
RSB [31]
I don tknow jgithugtetihgerrrrrrg
\'





6 0
3 years ago
About 7/10 of the surface of the earth is covered with water. Express this as an equivalent fraction with 100 as the denominator
larisa [96]

Answer:

70/100

Step-by-step explanation:

Surface of the earth covered with water = 7/10

Equivalent fraction of 7/10 with 100 as the denominator = 70/100

This means 70% of the earth surface is covered with water

Percentage covered with land = Total percentage - percentage covered with water

= 100/100 - 70/100

= 100-70/100

= 30/100

Percentage covered with land = 30%

8 0
3 years ago
Please help I need it in 5 minutes
uysha [10]

Answer:

b

Step-by-step explanation:

5 0
2 years ago
Other questions:
  • For the period 1997-2003, the number of eggs y (in billions) produced in the United States can be modeled by the function y=-0.2
    8·1 answer
  • At the beginning of an experiment, there are 400 grams of contaminants. Each hour, three-fourths of the contaminants are filtere
    13·2 answers
  • a giraffe can run up to 46.93 feet per second. how far can a giraffe run in 1.8 seconds. justify your answer
    9·2 answers
  • Please help me with this question :) thanks.
    13·1 answer
  • What is 3 4/15 divided by ( 8 times 6 3/10
    9·1 answer
  • Solve for Х.<br> 16<br> 20<br> A 25.6<br> В<br> 6<br> С<br> 12<br> D 15
    13·1 answer
  • Someone to give me the answer on the number line please
    8·1 answer
  • For what value of 0 is cos^-1(sqrt2/2)=0?
    13·2 answers
  • What number is 10 times as much as 50
    15·1 answer
  • Please help me with segment addition and midpoints
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!