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Virty [35]
3 years ago
10

Helllp im doing my exam !

Mathematics
1 answer:
Tcecarenko [31]3 years ago
7 0

log x ( 5 × 12 ) = 7

x^7 = 60

..................................

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The wavelength of green lights is about 0.00000051 meter. What is the estimated wavelength as a single digit times a power of 10
kari74 [83]

<em><u>Answer:</u></em>

<h2>5.1 X 10^-7</h2>

<u><em>Reason:</em></u>

It is to the -7 because you would have to move the decimal left (-) 7 times to get the original 0.00000051.

Hope this helps! ;)

6 0
3 years ago
5/9 of students at a school are girls. If there are 2367 students at the school, how many are boys?
Svet_ta [14]

the answer is 1052

5*2367 /9=1915

2367 -1315= 1052

5 0
3 years ago
Read 2 more answers
A twelve-foot ladder is leaning against a wall. If the ladder reaches ft high on the wall, what is the angle the ladder forms wi
hichkok12 [17]

This question is incomplete.

Complete Question

A twelve-foot ladder is leaning against a wall. If the ladder reaches eight ft high on the wall, what is the angle the ladder forms with the ground to the nearest degree?*

Answer:

42°

Step-by-step explanation:

From the question, the diagram that is formed is a right angle triangle.

To solve for this, we would be using the trigonometric function of Sine.

sin θ = Opposite side/ Hypotenuse

From the question, we are told that:

12 foot ladder is leaning against a wall = Hypotenuse

The ladder reaches 8ft high on the wall = Opposite side.

Hence,

sin θ = 8ft/12ft

θ = arc sin (8ft/12ft)

= 41.810314896

Approximately to the nearest degree

θ = 42°

Therefore, the angle the ladder forms with the ground to the nearest degree is 42°

3 0
3 years ago
I dont know what to do.
Scorpion4ik [409]
Slope=\frac{ y_{2}- y_{1}  }{ x_{2} - x_{1} }

(3,5) and (1,9)
x1=3
y1=5
x2=1
y2=9

Slope=\frac{ y_{2}- y_{1} }{ x_{2} - x_{1} }
Slope=\frac{ 9- 5 }{ 1 - 3}
Slope=\frac{4}{ -2}
Slope=-\frac{4}{2} or -2

Answer:Slope=-2
3 0
3 years ago
Simplify the expression using positive indices
Katen [24]
Simplify the expression:

4 0
2 years ago
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