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Trava [24]
3 years ago
12

Which expression is equivalent to 4^7x4^-5 answer

Mathematics
1 answer:
ValentinkaMS [17]3 years ago
7 0

Answer:

4^2

Step-by-step explanation:

4^7x4^-5

4^(7+(-5))

4^2

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Amber is an engineer designing a suspension bridge. She has a tower at each end of the bridge that will hang four diagonal cable
Usimov [2.4K]

Answer

she should find the length from where the tower begins to where the cable touches the ground, and use that number to be leg B, with the hight of the tower being constant and being leg A. then she uses the two numbers to find the hypotenuse of the new triangle. Repeat this with the other 3 cables and you have the answer! (Note: leg A's length will remain constant, but leg B's length will not because it is reliant on how far away the cables contact the ground in relation to the tower.)

Step-by-step explanation:

Hope tis helps :)

3 0
2 years ago
PLEASE HELP 20 POINTS
Anika [276]
Hello!

A sample of Bromine-82 begins at 80 mL. We are given that this value will decrease by half of its current amount every 35 hours. First, we'll determine the number of times that 35 goes into 140. This will reveal the number of times we should divide the sample by 2:

140 ÷ 35 = 4

We have now proven that there are 4 periods of 35 hours in 140 hours. This means that we will divide the sample in half a total of 4 times, as follows:

1. 80 ÷ 2 = 40
2. 40 ÷ 2 = 20
3. 20 ÷ 2 = 10
4. 10 ÷ 2 = 5

We have now proven that an 80 mL sample of Bromine-82 will be reduced to only 5 mL after 140 hours. Therefore, the correct answer is 5 mL.

I hope this helps!
7 0
2 years ago
Read 2 more answers
Solve the equation.<br> 6.35 + b = 9.89
nika2105 [10]

Answer:

b=3.54

Step-by-step explanation:

9.89-6.35=3.54

6 0
3 years ago
Read 2 more answers
Please help!! Will mark Brainliest!!! 19 points
MA_775_DIABLO [31]
76 is right
4 \sqrt{1611391}
8 0
3 years ago
Identify the range of the function shown in the graph.​
Kitty [74]

Answer:           The answer is all real numbers

Step-by-step explanation:

This is the answer because the line goes on infinitely and will pass through all of the numbers (negative, positive). Its not y \geq \\ 0 because it passes through 0 when the line goes through x (side to side) axis.

6 0
2 years ago
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