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Minchanka [31]
2 years ago
6

100 POINTS!!!

Mathematics
1 answer:
tresset_1 [31]2 years ago
7 0

Answer:

A.

Step-by-step explanation:

The slope of a perpendicular line is the negative reciprocal of the original  line.

Negative reciprocal of -4/5 is 5/4

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Can someone please help me I’m having some trouble with this question I will give a brainliest
aleksley [76]

Answer: it should be 28

Step-by-step explanation: because the way the other problems are solved is the right side of the triangle times the bottom and then adding the left side of the triangle, ( 9x8+7=79 ) ( 5x5+5=30) so to get the answer you’d just multiply 24x3= 72 , then subtract 100-72= 28

3 0
3 years ago
Read 2 more answers
The leg of a right triangle are 3 units and 10 units. What is the length of the hypotenuse? Round your answer to the nearest hun
Andreas93 [3]
Hey there! This is gonna require the Pythagorean Theorem which is<span> a^2 + b^2 = c^2
</span>
a and b in this case are the legs while c is the hypotenuse! So, we can just plug in the numbers we know!

3^2 + 10^2 = c^2

9 + 100 = c^2

109 = c^2

And then take the square root of 109 to get the hypotenuse.

<span>10.4403065089 = c
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Since we need to round to the nearest hundredth, though, it would be 10.44



I hope that helps! Feel free to let me know if you have any questions!

- mathwizzard3
6 0
3 years ago
You earn $20.00 per hour at your job. If you get a 10% raise at the end of each year, what will your hourly rate, h, be after 8
lesya [120]
The answer is $42.87

h = C(1 +r)^{t}

We know:
C = $20.00
r = 10% = 10%/100% = 0.1
t = 8 years
h = ?

h = 20 * (1 + 0.1)⁸
h = 20 * (1.1)⁸
h = $42.87
6 0
3 years ago
If two angles of a triangle have measures of 42° and 20°, what is the measure of the third angle?
dexar [7]

The other angle would be 118°

The three angles of a triangle must add up to 180°.

3 0
3 years ago
From 7 PM to 8 PM rose completed 1/3 of his homework. From 8 PM to 9 PM he completed 1/4 of his homework. What fraction of us ho
earnstyle [38]

Answer:

7/12 are left.

Step-by-step explanation:

Convert 1/3 and 1/4 so the have a common denominator. The common denominator is 12 so 1/3 turns into 4/12 and 1/4 turns into 3/12. 3/12 plus 4/12 equals 7/12.

Hope this helps. Hoping for brainliest

3 0
4 years ago
Read 2 more answers
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