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
MariettaO [177]
3 years ago
12

Find the sum.

Mathematics
1 answer:
Assoli18 [71]3 years ago
5 0
Since you cannot add numbers which have x to the power of something and normal x, A and B are incorrect. C is also incorrect because I don't even know how you could get that number.
D is correct.
(14x2 + 7x) + 9x2 - you don't even need the brackets, so
14x2 + 7x + 9x2 
(14x2 + 9x2) + 7x
23x2 + 7x
You might be interested in
Sally's pet grooming business charges $5 per cat and $10 per dog for a pet bath. She earned $550 for pet baths last month. If 20
Minchanka [31]

Answer:

45 dogs

Step-by-step explanation:

so she has $550 and she did 20 cats and it costs $5 per cat and 5 x 20 is $100 and $550 - $100 = 450 and 450 divided by 10 ( because it's $10 per dog) is 45.

8 0
3 years ago
5^-1 = blank * 5^4 find the missing factor
skad [1K]

Answer:

1/3125 or, 5^-5

Step-by-step explanation:

5^-1 = blank * 5^4

1/5/625= blank   or,     5^-1/5^4=blank

blank=1/3125               5^-5=blank

4 0
3 years ago
Convert 60 miles per hour into meters per second
Svetllana [295]
1,609.35 meters are in a mile.
3,600 seconds are in an hour.

1,609.35meters x 60miles = 96,561 meters per hour
96,561meters per hour / 3,600seconds = 26.82 meters per second
3 0
3 years ago
University officials say that at least 70% of the voting student population supports a fee increase. If the 95% confidence inter
baherus [9]

Answer:

The interval estimate is above 70%, so infer that it will be supported.

Step-by-step explanation:

The evidence that 95% confidence interval estimating the proportion of students supporting the fee increase is [0.75, 0.85] supports university officials' claim that at least 70% of the voting student population supports a fee increase.

Therefore we can infer that a fee increase will be supported.

4 0
3 years ago
dennis ran a mile in 593.7 seconds.martina ran a mile in 573.36 seconds. what was the difference in their running times? A-5.14
Svetlanka [38]

subtract them

593.7-573.36 = 20.34seconds

 so c is the answer


8 0
3 years ago
Read 2 more answers
Other questions:
  • A rectangle measures 3 feet by 24 inches. Find the area of the rectangle in square feet.
    5·2 answers
  • Theo found the driving distance from Glacier National Park to Yellowstone Park to be 448 miles. Theo used a map that had a ratio
    8·2 answers
  • PLEASE HELP ME!!!! 20 POINTS
    6·2 answers
  • What is expanded form
    12·2 answers
  • If f(x)=35x+25 <br> and g(x)=22x+18 <br> find 5f(4)+2g(10)
    10·1 answer
  • The dot plot shows the number of classes per semester that a group of boys and girls have chosen to take in their freshman year
    7·2 answers
  • Evaluate (distributive property)
    5·1 answer
  • <img src="https://tex.z-dn.net/?f=5u%20%2B%2011%20%3D%2056%20%5C%5C%20u%20%3D%20" id="TexFormula1" title="5u + 11 = 56 \\ u = "
    15·2 answers
  • What is the volume of a cone with base diameter 14 and height 16?
    13·1 answer
  • Find the perimeter of the triangle
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!