We want to divide , i.e. .
So, assume that we have a number such that
This implies that
Those two expression are equal if the correspondent coefficients are equal:
And it should be immediate to conclude the value for k from here.
Step-by-step explanation:
Let the number in each case be x.
- 2x÷6=42
- 2(x+5)=20
- 4(x-7)=32
- 1/3 x=x-13
- (x÷2)+10=-15
- (x×3)-1=x+5
Answer:
Step-by-step explanation:
The figure is a rectangle whose area can be calculated from the relation;
where A , L and W represent the area, length and width respectively.
From the question,
and L=30y meters
We substitute the values of A and L into the formula to solve for W
Dividing through by 30y
NB: From the law of indices;
Answer: 104 degrees farenheit
Step-by-step explanation: H = record high temperature. -5 + 109 = H. -5+109 = 109 + (-5) = 109-5 = 104. H = 104.
Option third is correct enlarged by a factor of 4 because the distance between two dots is 1.
<h3>What is geometric transformation?</h3>
It is defined as the change in coordinates and the shape of the geometrical body. It is also referred to as a two-dimensional transformation. In the geometric transformation, changes in the geometry can be possible by rotation, translation, reflection, and glide translation.
We have a star showing in the picture.
We are considering the small star as the original image.
And the big star is the pre-image.
As we know,
The scale factor =
(length of the big star in the x-direction from the origin)/(length of the small star in the x-direction from the origin)
The distance between two dots is 1.
Scale factor = 8/3
As the scale factor is greater than 1 it means the image will be enlarged.
Thus, option third is correct, enlarged by a factor of 4 because the distance between two dots is 1.
Learn more about the geometric transformation here:
brainly.com/question/16156895
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