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Sophie [7]
2 years ago
5

Simplify 4a – 7b + 2ab – a + b.

Mathematics
2 answers:
Ivenika [448]2 years ago
6 0

Answer:

- ab and 15ab

Step-by-step explanation:

inysia [295]2 years ago
4 0

Answer:

3a - 6b + 2ab

Step-by-step explanation:

We can group the a's and b's like this:

4a - 7b + 2ab - a + b

4a - a - 7b + b + 2ab

3a - 6b + 2ab

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The above figure is:
kow [346]

Answer:

non-convex polygon

Step-by-step explanation:

5 0
2 years ago
Edward solved the equation 4x + 1 = 5x + (−5) using these steps. 1. Add 4 negative x-tiles to both sides. 2. Add 5 negative unit
8_murik_8 [283]

Answer:

The solution for the given expression x ix 6.

Step-by-step explanation:

4x + 1 = 5x + (-5)

Solution:

Step 1: Adding (-4x) on both sides

4x + 1 +(-4)= 5x + (-5)+(-4x)

1=-5+1x

Step 2: Adding (5) on both sides:

1+5=-5+1x+5

6=x

The solution for the given expression x ix 6.

8 0
3 years ago
Read 2 more answers
What is the domain and range?<br>​
fgiga [73]

Answer:

Answer:The domain is all the values that go into a function.and the range is all the values that come out.

6 0
3 years ago
You hike 190 meters up a steep hill that has a 33∘ angle of elevation as shown in the diagram.
erik [133]

Answer:

b = 159 m

a = 103 m

angle B is 57 degrees

Step-by-step explanation:

Let’s start with getting the measure of angle B

Mathematically, since we have a right triangle , we have to subtract the given angle from 90 to get the other acute angle

So we have the measure of B as;

90-33 = 57 degrees

To get the value of a, we use the appropriate trigonometric ratio

a faces the angle 33, that makes it an opposite to that angle

190 faces the right angle and that makes it the hypotenuse

Mathematically , the relationship between the two is that trigonometrically, they are related by the sine which is the ratio of the opposite to the hypotenuse

so, we have it that;

sine 33 = a/190

a = 190 * sine 33

a = 103 m

to get b, it is adjacent to the given angle

So with the hypotenuse, the ratio between it and the hypotenuse is the cosine

so;

cos 33 = b/190

b = 190 * cos 33

b = 159 m

4 0
3 years ago
A tank contains seven liters of 10% alcohol solution. how many liters of 6% alcohol should be added to have 8% alcohol solution?
kow [346]

Answer:

b

Step-by-step explanation:

7 0
2 years ago
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