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tester [92]
3 years ago
5

Which expression can be used to find the sum of the polynomials? (9 – 3x2) + (–8x2 + 4x + 5)

Mathematics
2 answers:
timama [110]3 years ago
8 0

Answer:

It may not be right but try D.

Step-by-step explanation:

neonofarm [45]3 years ago
6 0

Answer:

D is correct

Step-by-step explanation:

Took the test on edg 2020

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3. A building stands on level ground. The measure of the angle of elevation of the top of the building, taken at a
Natasha_Volkova [10]

Answer:

12,400

Step-by-step explanation:

so what you are going to first is 400 times 31 which is 12,400

7 0
3 years ago
In algebra, we often study relationships where a change to one variable causes change in another variable. Describe a situation
seropon [69]

A notable expression is one of the formulas for the equations of linear motion, that is

Velocity  =  Distance/Time

Description

Given the above equation/condition, when the Time is increased, the velocity reduces and vice versa.

  • The quantities have a proportional relationship.
  • If we plot this on a graph we will have a straight line graph

Learn more about proportional relationship here:

brainly.com/question/15400901

8 0
3 years ago
Evaluate the expression for 12−9(−1
VMariaS [17]

Answer:

21

Step-by-step explanation:

6 0
3 years ago
Find the area of the triangle.
Len [333]

Answer:

123.948 km²

Step-by-step explanation:

We can use the equation: <em>AΔ = 1/2*ab*sinθ</em>, where a and b are the lengths of the sides next to the known angle, and θ is the angle itself.

Plugging in the numbers we know, we get: <em>AΔ = 1/2*22*24*sin(28°)</em>

Simplify: <em>AΔ = 264*.4695</em> (0.4695 is approximately sin(28°))

Simplify: 123.948 km²

7 0
3 years ago
PLS HELP DUE SOON!! (retest) will give brainliest &lt;3
igor_vitrenko [27]

Answer:

B and D

Step-by-step explanation:

8 0
3 years ago
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