Answer:
129 square foot
Step-by-step explanation:
<u>Step 1: Convert height of the door to inches</u>
Height of the door = 10 feet 8 inches
1 feet = 12 inches
10 feet = y inches
<em>Cross Multiply</em>
y = 120 inches
Height of door in inches = 120 + 8 =128 inches
<u>Step 2: Find the surface area of one side of the door</u>
Surface area = length x width
length = 128 inches
width = 145 inches
Surface area = 128 x 145
Surface area = 18560 inches
<u>Step 3: Convert surface area from inches to square foot</u>
Surface area = 18560 inches
1 square foot = 144 inches
y = 18560 inches
<em>Cross multiply</em>
144y = 18560
y = 18560/144
y = 128.89 rounded off to 129 square foot.
Therefore, you should report 129 square foot surface area to the hardware store.
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Answer:
The answer is the last one
Step-by-step explanation:
Answer:
The factors of given quadratic equation
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Step-by-step explanation:
<u><em>Explanation:-</em></u>
<em>Given quadratic equation 15x² +39 x -18 =0</em>
<em> The factors of 270 = 30 × 9</em>
<em>The quadratic equation 15x² +39 x -18 =0</em>
<em> ⇒ 15 x² +30 x-9x -18=0</em>
<em> ⇒ 15x(x+2) -9( x+2) =0</em>
<em> ⇒( 15x -9)(x+2) = 0</em>
<em> 15x - 9=0 and x+2 =0</em>
<em> 15 x =9 and x = -2</em>
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My answer was wrong, delete this answer or disregard
<h3>
HCF of 4 and 9 is 1</h3>
- HCF of 4 and 9 is the largest possible number that divides 4 and 9 exactly without any remainder. The factors of 4 and 9 are 1, 2, 4 and 1, 3, 9 respectively.
So , the HCF of 4 and 9 is 1