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
vladimir2022 [97]
4 years ago
14

Simplify the expression: 9a – 7a + 4 – 4 + 8

Mathematics
1 answer:
Ksju [112]4 years ago
8 0

Answer:

2a + 8

Step-by-step explanation:

9a - 7a + 4 - 4 + 8

=> 2a + 12 - 4

=> 2a + 8

You might be interested in
Which one does not belong? <br><br> A. 3x<br> B. 8x<br> C. 3<br> D. -5x
zalisa [80]

Answer:

i believe C does not belong because it is the only one without x

5 0
3 years ago
Tanya is paid an hourly rate. One week she earned $157.50 by working 30 hours. If she works 35 hours the next week, how much wil
Jobisdone [24]

Answer:

183.75

Step-by-step explanation:

157.50

÷30

=5.25

×35

=183.75

8 0
3 years ago
Read 2 more answers
If you have 15 pieces of candy and you gave 6 of them away, how many pieces of candy do you have left?
Blizzard [7]

Answer:

56

Step-by-step explanation:

3 0
2 years ago
How is exponential growth and decay used in everyday life?
maria [59]
Exponential growth<span> functions are often </span>used<span> to model population </span><span>growth or decrease and knowing the amount of people on earth is important. </span>
5 0
4 years ago
Low‑density lipoprotein, or LDL, is the main source of cholesterol buildup and blockage in the arteries. This is why LDL is know
Reika [66]

Answer:

16% of the individuals from this population will have LDL levels are 1 or more standard deviations above the mean.

Step-by-step explanation:

The 68-95-99.7 rule states that:

68% of the measures of a normally distributed sample are within 1 standard deviation of the mean. 34% of them above, 34% of them below.

What percentage of individuals from this population will have LDL levels 1 or more standard deviations above the mean?

Of the 50% of the measures that are above the mean, 34% are within 1 standard deviation. So 50-34 = 16% are 1 or more standard deviations above the mean.

3 0
4 years ago
Other questions:
  • The local bakery sells muffins in 6 packes.... they sell the muffins in this variety,,, 3 blueberry muffins. &amp; 2 pumpkin muf
    5·1 answer
  • A rectangle has a lenth of 14 inches and width of 9 inch.what is the ratio of width to length
    11·2 answers
  • A sphere has a diameter of 12 meters. What is its exact surface area and its exact volume?
    6·1 answer
  • Two bicyclists started racing towards each other when they were 98 miles apart. Three hours later they did not yet meet and the
    5·2 answers
  • What is the equation for the line perpendicular to the line represented by the equation Y =1/3 X -2 that passes though the point
    10·1 answer
  • Austin Family Furniture purchases recliners directly from the manufacturer for $235.00 each. The recliners are marked up 185% of
    10·1 answer
  • If P=(-3,4), find: Ry-axis (P)
    6·1 answer
  • 7. The total cost to rent a truck is $100 and $0.20 per km.
    9·1 answer
  • What is the result of adding these two equations? \begin{aligned} 2x+3y &amp;= -5 \\\\ 5x-y &amp;= -12 \end{aligned} 2x+3y 5x−y
    13·1 answer
  • Ok can someone just give me a real clear answer pls
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!