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
olga nikolaevna [1]
3 years ago
8

Find the sum and express it in simplest form. (3a2+2a)+(5a2-a-7)

Mathematics
1 answer:
Fofino [41]3 years ago
5 0
When you add 3a squared and 5a squared, you get 8a squared. 2a-a=a, with 7 leftover. the final answer would be 8a2 + a - 7
You might be interested in
I need help writing an expression​
zepelin [54]
I can help you write one
5 0
3 years ago
A baker needs 4 3⁄4 cups of flour. If she uses a 1 1⁄2 cup measuring scoop, how many scoops of flour must the baker use to have
Juliette [100K]

Answer:

If you did it three times it would be 4 1/2. If you wanted to make it at least 4 3/4 then you would need to do 1 1/2 4 times.

Step-by-step explanation:

4 0
2 years ago
PLEASE HELP! THANKS!
Alina [70]
If you add everything up then
14x-2=180
14x=182
x= 13
 
So the angles would equal
2(13)+1= 27
3(13)-3= 36
9(13)= 117
The angles are 27 36 and 117
Which makes the smallest angle 27 which is B.
8 0
3 years ago
Read 2 more answers
your customer count for last week was 5417. Due to a product promotion you expect a 2.4% increase this week over last week. how
Sauron [17]
The answer would be 5547
First you multiply 5417 and 2.4% to get 130.008
Then you add 130.008 and 5417 to get 5547.008
but you can round this to 5547
Hope this helped! :)
6 0
3 years ago
Find the measure of the the sides of DEF then classify it by it sides. <br> D(8,-6) E(-1,-3) F(-2,5)
Mama L [17]

Answer:

Part a) The measure of the sides of triangle DEF are

d_D_E=\sqrt{90}\ units

d_E_F=\sqrt{65}\ units

d_D_F=\sqrt{221}\ units

Part b) Is a scalene triangle

Step-by-step explanation:

we know that

the formula to calculate the distance between two points is equal to

d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}

we have the coordinates

D(8,-6) E(-1,-3) F(-2,5)

step 1

Find the length side DE

D(8,-6) E(-1,-3)

substitute in the formula

d=\sqrt{(-3+6)^{2}+(-1-8)^{2}}

d=\sqrt{(3)^{2}+(9)^{2}}

d_D_E=\sqrt{90}\ units

step 2

Find the length side EF

E(-1,-3) F(-2,5)

substitute in the formula

d=\sqrt{(5+3)^{2}+(-2+1)^{2}}

d=\sqrt{(8)^{2}+(-1)^{2}}

d_E_F=\sqrt{65}\ units

step 3

Find the length side DF

D(8,-6) F(-2,5)

substitute in the formula

d=\sqrt{(5+6)^{2}+(-2-8)^{2}}

d=\sqrt{(11)^{2}+(-10)^{2}}

d_D_F=\sqrt{221}\ units

step 4

Classify the triangle by the measure of its sides

we have

d_D_E=\sqrt{90}\ units

d_E_F=\sqrt{65}\ units

d_D_F=\sqrt{221}\ units

so

Is a scalene triangle, because is a triangle in which all three sides have different lengths.

6 0
3 years ago
Other questions:
  • Hi can someone check my answers please
    15·1 answer
  • Formula: A=bh/2<br><br> if b=50 and h=20, then A=?<br><br> Can someone explain how to solve this?
    15·1 answer
  • Factor expression 9x^6- 16y^6
    11·1 answer
  • Surface area of this prism
    15·2 answers
  • Are there any prime numbers that have a difference of 3
    9·2 answers
  • A fish is swimming at a constant rate toward the ocean floor. The equation
    6·1 answer
  • The volume of a pyramid with a square base is given by the expression sh, where s is the length of a side of the base and his th
    13·1 answer
  • Nyesha owns a lawn service company. Currently it takes her 50 hours a week to service all of her
    7·1 answer
  • HELP PLS which box has the largest IQR
    14·1 answer
  • Yesterday a car rental agency rented 4 convertibles and 30 other vehicles. Considering this
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!