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grigory [225]
3 years ago
14

Can someone help me

Mathematics
1 answer:
Mrrafil [7]3 years ago
8 0

Answer:

the answer is C, 8 radical 3

Step-by-step explanation:

use SOH CAH TOA.

cos(30)= a/16

cross multiply

a= 8radical3

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the length of a rectangle is 5 less than twice the width. If the perimeter of the rectangle is 146 centimeters, find the dimensi
d1i1m1o1n [39]

Answer:

26x47

Step-by-step explanation:

To calculate the length of the rectangle we would do 2(2x - 5) + 2(x) = 146

We simplify and get 6x - 10 = 146,

then divide both side by 6 and plus 10 both sides,

we will get

x = 26

Now we've found one of the length,

to find the other side we do 26 * 2 = 52, and subtract 52 from 146,

which would get 94, then we divide it by 2

94/2 = 47

The dimensions is 26x47

7 0
3 years ago
56 is 25% of what number<br><br> please answer
kodGreya [7K]
224 is the answer because 25% is 1/4 so if you take 56 times 4 you get the whole. (100%) 
7 0
3 years ago
Segment AB has point A located at (4, 2). If the distance from A to B is 3 units, which of the following could be used to calcul
miv72 [106K]

Applying the distance formula, to calculate the coordinates of B, use: 3 =√[(x-4)² + (y-2)²]  

<h3>What is the Distance Formula?</h3>

The distance formula, d = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}, is used to find the distance between two points on a coordinate plane.

We are given one point A(4, 2), let:

B (x, y) = (x2, y2)

A(4, 2) = (x1, y1)

d = 3 units

Plug in the values into the distance formula to find how to calculate the coordinates of B:

3 =√[(x-4)² + (y-2)²]  

Learn more about the distance formula on:

brainly.com/question/661229

#SPJ1

8 0
2 years ago
Rationalize the denominator and simplify. Square root of 2/5
liubo4ka [24]

Answer:

√10

------

  5

Step-by-step explanation:

√(2/5) has a radical in the denominator.  We want to eliminate that radical.  To do this, multiply both √2 and √5 by √5:

√2·√5

----------

    5

This simplifies to

√10

------

  5

6 0
4 years ago
I need help on this!!
olga nikolaevna [1]

Answer:

Commutative

Step-by-step explanation:

Given

3 + b + 2 = 3 + 2 + b

Required

What law is applied

The applied law is commutative law of addition.

This law states that:

a + b = b + a

So:

3 + b + 2 = 3 + (b + 2)

When the positions of 2 and b are interchanged, we have:

3 + b + 2 = 3 + (2 + b)

Remove bracket

3 + b + 2 = 3 + 2 + b

3 0
3 years ago
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