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Paha777 [63]
3 years ago
13

Which expression is equivalent to 3^2 . 3-^5

Mathematics
1 answer:
Rainbow [258]3 years ago
6 0

Answer:

3^2+5

3^7

jajajaja

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A guy wire is attached to the top of a radio antenna and to a point on horizontal ground that 40 m from the base of the antenna.
frutty [35]

Answer:

The length of the wire is 76.19 m.

Step-by-step explanation:

It is given that a guy wire is attached to the top of a radio antenna and to a point on horizontal ground that 40 m from the base of the antenna.

It means base of the right angled triangle is 40 m.

The wire makes an angle of 58deg 20min with the ground.

1 degree = 60 min

Using this conversion convert the given angle in degree.

58^{\circ}20'=58^{\circ}\frac{20}{60}^{\circ}=58\frac{1}{3}^{\circ}=\frac{175}{3}^{\circ}

In a right angled triangle

\cos \theta=\frac{adjacent}{hypotenuse}

\cos (\frac{175}{3}^{\circ})=\frac{40}{hypotenuse}

0.525=\frac{40}{hypotenuse}

hypotenuse=\frac{40}{0.525}

hypotenuse=76.190

Therefore the length of the wire is 76.19 m.

3 0
3 years ago
What is the ratio of y to x represented by the line in the graph? Plssss help me will give BRAINLIEST!!
UNO [17]
The answer is 5:2.

If we take the y-value of 10 and the corresponding x-value of 4, that is 10:4. You can reduce that by diving both numbers by 2. You get 5:2.
3 0
3 years ago
Kayla rolls a die 84 times. How many times can she expect to roll a 3?
Firdavs [7]

Answer:

14

Step-by-step explanation:

Assuming the die is 6 sided, there are only 6 possible rolls she can get. And assuming that this is a perfect world where probability is perfect, she will roll each number 14 times, because 84/6 is 14.

7 0
3 years ago
Solve the proportion
RSB [31]
A=4.375
E=6
M=6
K=4.8
hope this helped
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3 years ago
Does the table represent a proportional or a nonproportional linear relationship?
Ede4ka [16]

Answer:

I believe it is proportional.

Step-by-step explanation:

The numbers are going up by an equal amount each time. I am very sorry if it ends up wrong, but I think it is correct.

3 0
3 years ago
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