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liraira [26]
3 years ago
9

Which one should i pick?

Mathematics
2 answers:
Airida [17]3 years ago
7 0

last one is the solution u should choose

guajiro [1.7K]3 years ago
3 0

Answer:

The 4th option.

Step-by-step explanation:

we are given the equation

-6n+5

We can now solve for n

-6n+5-6\\\\n>-1

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Question Solve the equation. Check your solutions. ∣2x+1∣=∣3x−11∣
kirill [66]

Answer:

x=2 and x=12

Step-by-step explanation:

|2x+1| = |3x-11|

2x+1 = 3x-11

2x = 3x-12

-x = -12

x = 12

2x+1 = -(3x-11)

2x+1 = -3x+11

5x+1 = 11

5x = 10

x = 2

6 0
3 years ago
Divide 96m into two part<br>in the ratio of 9:7​
fredd [130]

Answer:

54 and 42

Step-by-step explanation:

add 9 and 7

use your answer as a denominator

to find the value for 9 you do 9/16 *96

which will give you 54

then do the same for 7 but replace the 9 with seven

7 0
2 years ago
Write this number in expanded form 20,484,163
viva [34]
Twenty million, four hundred and eighty four thousand, one hundred and sixty three.
8 0
3 years ago
Read 2 more answers
A trail that is 1/2
Elanso [62]

Answer:

The distance between each sign would be 1/8th of a mile.

Step-by-step explanation:

To find where each should be placed and the distance between them we would have to multiply 1/2 by 1/4 because there are 4 signs.

1/2 * 1/4 = 1/8

Each sign should be placed 1/8 of a mile away from each other.

So, the first sign would be placed at 1/8 of the half mile, the second sign would be placed at 1/4 of the half mile, the third sign should be put at 3/8 mark of the half mile, and then the fourth sign would be placed at the 1/2 mile mark.

Fraction form:

Sign 1: 1/8 mile

Sign 2: 1/4 mile

Sign 3: 3/8 mile

Sign 4: 1/2 mile

In decimal form it would be:

Sign 1: 0.125 mile

Sign 2: 0.25 mile

Sign 3: 0.375 mile

Sign 4: 0.5 mile

Hope this helps!!

4 0
1 year ago
The diagram at the right shows a lightray entering a rectangular block of unknown material and subsequently exiting the block on
Airida [17]
<span>Rectangular prism boundary 1 = 2.57 Rectangular prism boundary 2 = 2.57 Triangular prism boundary 2 = 1.37 Pentagram prism boundary 2 = 1.44 Note: You may get different values if you measured the angle differently. Don't be surprised if you're a few degrees different from me. The key thing in this problem is to actually physically measure the angles. If you don't measure them, you can't calculate the answer. Snell's law is sin a1/sin a2 = n2/n1 where a1 = angle of incidence of ray before boundary a2 = angle of incidence of ray after boundary n1 = index of refraction of medium before boundary n2 = index of refraction of medium after boundary The angle of incidence is the angle between the ray and the perpendicular to the boundary. For the rectangle in the first figure, I measured the angle of incidence for the first boundary to be 45 degrees and 16 degrees for the first surface. And for the 2nd surface, I got measurements of 16 degrees and 45 degrees. So let's plug those values into the formula and see what happens. First boundary: sin a1/sin a2 = n2/n1 sin 45/sin 16 = n2/1.0 0.707106781/0.275637356 = n2/1.0 2.565351779 = n2/1.0 2.565351779 = n2 So the index of refraction is 2.57 Second boundary: sin 16/sin 45 = 1.0/n1 0.275637356/0.707106781 = 1.0/n1 0.389810087 = 1.0/n1 0.389810087*n1 = 1.0 n1 = 1.0/0.389810087 n1 = 2.565351779 And it's no surprise that also shows an index of refraction of 2.57 For the right triangle on the same figure, the entry is parallel to the surface normal, so there's no data on the index of refraction for that ray. But it exits the triangle and the measurements I get is 45 degrees for the ray prior to the boundary and 75 degrees for the ray after the boundary. Assuming n = 1.0 for air outside the triangle, we get sin 45/sin 75 = 1.0/n1 0.707106781/0.965925826 = 1.0/n1 0.732050808 = 1.0/n1 0.732050808*n1 = 1.0 n1 = 1.0/0.732050808 n1 = 1.366025404 And the index of refraction of the triangle is 1.37 For the pentagon: Second boundary. Incoming angle = 36 degrees Outgoing angle = 58 degrees So: sin a1/sin a2 = n2/n1 sin 36/sin 58 = 1.0/n1 0.587785252/0.848048096 = 1.0/n1 0.693103675 = 1.0/n1 0.693103675*n1 = 1.0 n1 = 1.0/0.693103675 n1 = 1.442785597</span>
3 0
3 years ago
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