When y=3 and x= 1/2 1.4(2y-4x)-1= 2. 4x^2+2y^3-10= 3.4(x^+1)+2x+3y=
1 answer:
Answer:
1. 15
2. 45
3. There is a missing digit.
Step-by-step explanation:
Given: <u>y=3</u> and <u>x= 1/2</u>
<h2>Question 1: 4(2y-4x)-1=</h2>- Numerical factors in this term have been multiplied.
4(6-4/2)-1
- We can reduce this fraction by dividing both numerator and denominator by a common numeric factors.
4(6-2)-1
- Numerical terms in this expression have been added.
4*4-1
- Numerical factors in this term have been multiplied.
16-1
- Numerical terms in this expression have been added.
15
<h2>Question 2: 4x^2+2y^3-10 = </h2>4/2²2*27-10
4/2²+54-10
- We need to perform a multiplication.
- The following rule is applied:
45: Numerical factors in this term have been multiplied.
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The height of tree is 8 feet
<h3><u>Solution:</u></h3>Given, Micah places a mirror on the ground 24 feet from the base of a tree
At that point, Micah's eyes are 6 feet above the ground
And he is 9 feet from the image in the mirror.
To find : height of tree = ?
Let "n" be the height of tree
From the question, we can see there is a directly proportional relationship between heights and distances.
Proportional relationships are relationships between two variables where their ratios are equivalent.
Hence, the height of the tree is 8 feet