Sorry wrote down the wrong thing the first time. Try doing 2 plus 3 times 5.
Answer: 54-7n
Step-by-step explanation:
When we talk about mathematical language, the <u>difference </u>between two numbers, quantities or terms is the <u>substraction operation.</u>
For example, the <u>difference</u> between a and b is:
a-b
On the other hand, if we read a numer c <u>times</u> a number n, this means both numbers are multiplied.
For example:
c <u>times</u> n is:
(c)(n)
So, according to the explained above, “the difference of fifty-four and seven times a number n” is:
54-7n
Answer : C
The perimeter is all the sides added up, lets check C.
C states that 2 sides have a measure of 9, and two sides have a measure of 4.
9+9 = 18 4+4 = 8
18+8 = 26
The question states that the perimeter is 26 so this makes sense, now lets check our area.
Area = width * length
9 * 4 = 36
The question states that the area must equal 36, and it does therefore you correct answer is C
Answer:
The present was 300 feet above ground 5 seconds after being thrown.
6.47 seconds passed before the present hit the ground.
Step-by-step explanation:
We have the following quadratic function
Which determines the height of the present.
Determine when the present was 300 feet above the ground.
This is when 
. So
This is 
and 
. There are no negative time instants. So the present was 300 feet above ground 5 seconds after being thrown.
Determine how many seconds passed before the present hit the ground.
This is t when 
6.47 seconds passed before the present hit the ground.
Answer:
Step-by-step explanation:
<h3>Given equation:</h3>
-4 + 3y = -3
Add 4 to both sides
3y = -3 + 4
3y = 1
Divide 3 to both sides
<h3>y = 1/3</h3>
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