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chubhunter [2.5K]
3 years ago
14

Combine like terms 17y-15y

Mathematics
2 answers:
alisha [4.7K]3 years ago
5 0
Just subtract it like normal numbers like
17-15 = 2 now just add y 17y-15y = 2y
vesna_86 [32]3 years ago
3 0

Answer:

2y

Step-by-step explanation:

Since 17y and 15y both have a y, you can combine it. You can subtract 17-15 to get 2, so the answer is 2y.

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Use ΔABC to find the value of cos B<br><br> A) 12/13<br> B) 12/5<br> C) 5/13<br> D) 5/12
Ivanshal [37]

Answer:

  C)  5/13

Step-by-step explanation:

The mnemonic SOH CAH TOA reminds you that the cosine ratio is ...

  Cos = Adjacent/Hypotenuse

For the given problem, this means ...

  cos(B) = BC/BA = 15/39

  cos(B) = 5/13

7 0
3 years ago
How to solve y + 12 = 10​
Elan Coil [88]

Answer:

y=-2

Step-by-step explanation:

y+12=10

Move the 12 to the other side

Once you move the 12 on the otherside it will become negtive

y=10-12

y=-2

Hope this Helps!

6 0
4 years ago
Read 2 more answers
Unit 11: Value &amp; Surface Area <br> Homework 1: Area of planes Figure<br> Pls Help me with #11
kotegsom [21]

Answer:

The area of the triangle is 351cm^2.

Step-by-step explanation:

To find the area of a triangle, the formula is (1/2) x base x height. In this case, the height would be a line that cuts straight through the center of the triangle. However, this height is not given to us. We can still find it through Pythagoras' Theorem though.

Let A be the tip of the triangle, and B and C be the points on either side of the triangle. Assuming an imaginary line that cuts the triangle in a symmetrical half, let T be the point at the end of the line, directly below point A.

Using Pythagoras' Theorem,

AB^2 = AT^2 + TB^2

AT^2 = AB^2 - TB^2

AT^2 = 30^2 - (26/2)^2

AT^2 = 30^2 - 13^2

AT =

\sqrt{ {30}^{2}  -  {13}^{2} }

AT = 27.0370116692

So the length of AT is our height. We can now find the area of the triangle.

Area of triangle = (1/2) x 26cm x AT

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8 0
3 years ago
Please help me with this
Anni [7]
Sub in the numbers for x

6 0
3 years ago
A=?<br><br> b=?<br><br> C =?<br><br> Can someone tell me the answer please
beks73 [17]

Answer:

Below.

Step-by-step explanation:

a = 37 degrees ( vertical angle to 37 )

c = 180 - 37 = 143 degrees (adjacent angles add up to 180).

b = 180 - 37 - 109 = 34 degrees   (angles in a triangle sum to 180 degrees).

5 0
3 years ago
Read 2 more answers
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