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zimovet [89]
2 years ago
7

Subtract -2x² from the sum of 4x² and 15x².​

Mathematics
2 answers:
tatuchka [14]2 years ago
8 0

Answer:

21x^{2}

Step-by-step explanation:

4x^{2} +15x^{2} --2x^{2}

4x^{2} +15x^{2} +2x^{2}...........2 negatives signs next to each make a positive

21x^{2}.................................combine like terms

harkovskaia [24]2 years ago
6 0

Answer:

Step-by-step explanation:

(4x²+15x²)-(-2x²)=19x²+2x²=21x²

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I want to purchase a third of a cupcake for
never [62]

Answer:

Well it would be a total of 2 Cup Cakes

Step-by-step explanation:

1/3 + 1/3 + 4/3 =2

2/3 +4/3 = 6/3

ye

4 0
3 years ago
briana house is at (1,6) and jordan house is(5,3) what is one possible path from brianna house to jordan house
Maurinko [17]

Answer:

see the explanation

Step-by-step explanation:

Let

A (1,6)------> location Brianna's house on a map

B (5,3)------> location Jordan's house on a map

we know that

One possible path from Brianna's house to Jordan's house it's a straight line  ( the shortest distance)

using a graph tool

see the attached figure

<em>Find the distance points AB</em>

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

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

substitute the values

d_A_B=\sqrt{(3-6)^{2}+(5-1)^{2}}

d_A_B=\sqrt{(-3)^{2}+(4)^{2}}

d_A_B=\sqrt{25}

d_A_B=5\ units

The distance from Brianna's house to Jordan's house is 5 units

6 0
4 years ago
What is the distance from the origin to point A graphed on the complex plane below?
Lisa [10]

Answer:

a. square root of 5

b. square root of 13

c. 9

d. 13

Step-by-step explanation:

6 0
3 years ago
A line is parallel to y=3x +8 and intersects the point (-3,7). What is the equation of this parallel line?
RoseWind [281]

Answer:

y=3x

Step-by-step explanation:

7 0
3 years ago
Please help!!
erastova [34]

Answer:

  180, 180, 148, 180, 148

Step-by-step explanation:

The two rules in play here are ...

  • the sum of interior angles of a triangle is 180°
  • the angles of a linear pair are supplementary (they total 180°)

__

The first of these rules answers the first two questions:

  • interior angles total 180°
  • angles 1, 3, 4 total 180°

We can subtract the measure of angle 1 from both sides of the previous equation to find the sum of the remaining two angles.

  • angles 3 and 4 total 148°

The second rule answers the next question:

  • angles 1 and 2 total 180°

As before, subtracting the value of angle 1 from both sides of the equation gives ...

  • angle 2 must be 148°

_____

<em>Additional comment</em>

Of course, the subtraction property of equality comes into play, also. For some unknown, X, you have (in both cases) ...

  X + 32° = 180°

  X +32° -32° = 180° -32° . . . . . . subtraction property of equality

  X = 148° . . . . . . . . simplify

In the first case, X is the sum of angles 3 and 4. In the second case, X is angle 2 only.

7 0
3 years ago
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