<em>4℉.</em>
What we know about Degrees is that there is a<em> </em><u><em>Positive</em></u> type and a <u><em>negative</em></u> type.
(i.e: 30℉ is <u><em>positive</em></u> and -30℉ is <u><em>negative</em></u>.)
If the temperature was -4℉ at 7AM, then it is negative. If it goes up by an amount that is more than 4 then that negative will go up to a positive temperature. In this case: At 9AM it was 8° <u><em>warmer</em></u>.
<u><em>Warmer</em></u><em> is a </em><u><em>keyword</em></u><u>.</u> If it is warmer by an amount, Negative temperatures <u><em>will go up to a positive</em></u> and positive temperature <u><em>will just go up</em></u>. If it gets cooler, negative temperatures <u><em>will go down further</em></u> and positive temperatures <u><em>will go down to a negative</em></u>.
So lets work out this problem with our newfound knowledge.
-4° F at 7AM
8° warmer at 9AM
-4 + 8 = 4.
<em>The temperature was 4° at 9AM.</em>
-Snooky
Answer:
See Explanation
Step-by-step explanation:
Given
![Ladder = 9ft](https://tex.z-dn.net/?f=Ladder%20%3D%209ft)
![Tallest\ Sunflower = x](https://tex.z-dn.net/?f=Tallest%5C%20Sunflower%20%3D%20x)
Required
How much taller is the tallest
To get this, we simply calculate the difference between the height of the tallest sunflower and the ladder.
i.e.
![Difference = Tallest\ Sunflower - Ladder](https://tex.z-dn.net/?f=Difference%20%20%3D%20Tallest%5C%20Sunflower%20-%20Ladder)
![Difference = x - 9](https://tex.z-dn.net/?f=Difference%20%20%3D%20x%20-%209)
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If for instance, the tallest is 13ft, then it is 4ft taller.
Because:
![Difference = 13ft - 9ft](https://tex.z-dn.net/?f=Difference%20%3D%2013ft%20-%209ft)
![Difference = 4ft](https://tex.z-dn.net/?f=Difference%20%3D%204ft)
The expression that expresses all possible lengths of segment AB is 27 < AB < 81. The correct option is the second option 27 < AB < 81
<h3>Properties of a triangle</h3>
From the question, we are to determine the expression that expresses all possible lengths of segment AB
From one of the properties of a triangle,
The <u>third side</u> of any triangle is greater than the difference of the other <u>two sides</u>; and the <u>third side</u> of any triangle is lesser than the sum of the <u>two other sides</u>
Then, we can write that
AB < 27 + 54
and
AB > 54 - 27
Putting the two inequalities together, we get
54 - 27 < AB < 27 + 54
27 < AB < 81
Hence, the expression that expresses all possible lengths of segment AB is 27 < AB < 81. The correct option is the second option 27 < AB < 81
Learn more on the Properties of a triangle here: brainly.com/question/1851668
#SPJ1
Answer:
23rd term of the arithmetic sequence is 118.
Step-by-step explanation:
In this question we have been given first term a1 = 8 and 9th term a9 = 48
we have to find the 23rd term of this arithmetic sequence.
Since in an arithmetic sequence
![T_{n}=a+(n-1)d](https://tex.z-dn.net/?f=T_%7Bn%7D%3Da%2B%28n-1%29d)
here a = first term
n = number of term
d = common difference
since 9th term a9 = 48
48 = 8 + (9-1)d
8d = 48 - 8 = 40
d = 40/8 = 5
Now ![T_{23}= a + (n-1)d](https://tex.z-dn.net/?f=T_%7B23%7D%3D%20a%20%2B%20%28n-1%29d)
= 8 + (23 -1)5 = 8 + 22×5 = 8 + 110 = 118
Therefore 23rd term of the sequence is 118.