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nataly862011 [7]
3 years ago
10

(5x - 3y)(4x - 2y) Simply the polynomial

Mathematics
1 answer:
Nuetrik [128]3 years ago
7 0

Answer:

=20x2−22xy+6y2

Step-by-step explanation:

(5x−3y)(4x−2y)

=(5x+−3y)(4x+−2y)

=(5x)(4x)+(5x)(−2y)+(−3y)(4x)+(−3y)(−2y)

=20x2−10xy−12xy+6y2

=20x2−22xy+6y2

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I NEED THIS PLEASE EXPERS.
kipiarov [429]

Answer: The answer is 24 :)

Give brainlest if I’m right

7 0
3 years ago
Read 2 more answers
A red balloon starts at 7.3 meters off the ground and rises at 2.6 meters per second. A blue balloon starts at 12.4 meters off t
nexus9112 [7]
This problem is an example of solving equations with variables on both sides. To solve, we must first set up an equation for both the red balloon and the blue balloon. 

Since the red balloon rises at 2.6 meters per second, we can represent this part of the equation as 2.6s. The balloon is already 7.3 meters off of the ground, so we just add the 7.3 to the 2.6s: 

2.6s + 7.3

Since the blue balloon rises at 1.5 meters per second, we can represent this part of the equation as 1.5s. The balloon is already 12.4 meters off of the ground, so we just add the 12.4 to the 1.5:

1.5s + 12.4

To determine when both balloons are at the same height, we set the two equations equal to each other: 

2.6s + 7.3 = 1.5s + 12.4

Then, we solve for s. First, the variables must be on the same side of the equation. We can do this by subtracting 1.5s from both sides of the equation: 

1.1s + 7.3 = 12.4

Next, we must get s by itself. We work towards this by subtracting 7.3 from both sides of the equation: 

1.1s = 5.1

Last, we divide both sides by 1.1. So s = 4.63. 

This means that it will take 4.63 seconds for both balloons to reach the same height. If we want to know what height that is, we simply plug the 4.63 back into each equation: 

2.6s + 7.3
= 2.6 (4.63) + 7.3
= 19.33

1.5s + 12.4
= 1.5 (4.63) + 12.4
= 19.33

After 4.63 seconds, the balloons will have reached the same height: 19.33 meters.
6 0
4 years ago
Can someone help? Show work
Kamila [148]
Given the isosceles right triangle in which each of its legs has a measure of 4:

Let c = hypotenuse
a = one of the legs of the triangle
b = the other leg of the triangle

Use the Pythagorean Theorem to solve for the measure of the hypotenuse:

c^ 2 = a^2 + b^2

c^ 2 = (4)^2 + (4)^2
c^ 2 = 16 + 16
c^2 = 32

Next, take the square root of each side of the equation to solve for c:

√(c^2) = √(32)

c = 4√(2)

Therefore, the correct answer is Option 3) 4√(2).
8 0
3 years ago
Please find out what x is
Ratling [72]

Answer:

10

Step-by-step explanation:

The sum of exterior angles for any polygon is 360.

so first add up all the given exterior angle:

30+35 = 65.

next, find all the exterior angles that you can find:

Exterior angle = 180-interior angle

so:

180-90 = 90

180-135 = 45

180-120 = 60

180-90=90

These are all that we can find.

now add these to 65:

90+45+60+90+65 = 350

To find x, subtract 350 from 360, which is the sum of exterior angles.

360-350 = 10

Hope this helps

Good Luck

6 0
4 years ago
Read 2 more answers
If the point (2-3) lies on the graph of the equation 2y=ax-7 then find the value of a <br>​
11111nata11111 [884]

Answer:

\frac{1}{2}

Step-by-step explanation:

if to substitute the coordinates of the point into the equation:

2*(-3)=2*a-7, then a=1/2

5 0
3 years ago
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