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Gnom [1K]
4 years ago
5

Hi...I am taking pre calculus and I'm reallyo lost here..can someone help me?

Mathematics
1 answer:
Karolina [17]4 years ago
3 0
1. Log7 (49)=2
2. Log63(216)=3
3. Log2 (256)=8
4. Log4 (64)= 3
5. Log5 (3125)=5
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Traveling from San Antonio to Dallas, you fist pass through Austin and then Waco before reading Dallas, a total distance of 280
pshichka [43]
The answer is 70 miles.

If we express distances as following:
T - total distance
a - distance from <span>San Antonio to Austin
b - </span>distance from <span>Austin to Waco
c - </span>distance from <span>Waco to Dallas
Then:
T = 280 mi
b = a - 30 mi        </span>⇒ a = b + 30<span>
b = c + 20 mi       </span>⇒ c = b - 20<span>

T = a + b + c
</span>⇒ a + b + c = 280
⇒ b + 30 + b + b - 20 = 280
⇒ 3b +10 = 280
⇒ 3b = 280 - 10
⇒ 3b = 270
⇒ b = 90 mi.

Distance from <span>Waco to Dallas is c.
</span><span>c = b - 20
</span>⇒ c = 90 - 20
⇒ c = 70 mi

Therefore, distance from <span>Waco to Dallas is 70 miles.</span>
8 0
3 years ago
Mr. Brown has a board that is 7/8 foot long. He cuts the board into pieces that are 1/16 foot long. Which expression could be us
nika2105 [10]

Answer:

14

Step-by-step explanation:

8 is half of 16 so times the values by two and you got your answer.

5 0
3 years ago
if the scale factor of a dilation is less than one and greater than zero, what happens to the resulting image?
Nadusha1986 [10]
Since the scale factor is smaller than one (the original), the resulting image is <em>smaller than the original.</em>

Hope this helped, and feel free to ask more questions if needed(:
8 0
3 years ago
I'm doing daily spiral review 4-1 A building has 8 same- sized apartments. The area of 1 apartment is 725 square feet .Let t be
Oksana_A [137]
What is your question? that made no sense sweet heart.
7 0
3 years ago
you can fly from seattle to boise for $137.50 from boise to withhita for $92.50 and from withhita to austin for $ 162.50 use men
aleksley [76]
You can look at this by place value.

hundreds = 200
tens = 180
ones = 11
change = 1.50

Count up beginning with the largest value.

Total = $392.50
3 0
4 years ago
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