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3 years ago

15 - 12 indicated operation

Mathematics

1 answer:

Rashid [163]3 years ago

6 0

Answer: 3

Step-by-step explanation:

12+3 =15

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The congruent sides of an isosceles triangle are each 1 unit longer than the length of the shortest side of the triangle. The pe

Readme [11.4K]

Answer:

10 units

Step-by-step explanation:

Let the shortest side be x

Now since we are given that The congruent sides of an isosceles triangle are each 1 unit longer than the length of the shortest side of the triangle.

So, the length of the congruent sides (each) = x+1

Thus the perimeter of triangle = sum of all sides

= x+x+1+x+1

=3x+2

Now we are given that The perimeter of the triangle is the same as the perimeter of a square whose side length is 2 units shorter than the length of the shortest side of the triangle.

Side of square = x-2

So, perimeter of square = 4*side

=4(x-2)

=4x-8

Now since the perimeter of the triangle and square are equal

So, $3x+2=4x-8$

$10=x$

Hence the shortest side of the triangle is 10 units.

5 0

4 years ago

Read 2 more answers

What number should be added by both sides of the equation to complete the the square? x^2-10x=7

NemiM [27]

You add 25 to both sides.
You take half the x term, which is 10/2=5, and square it, so 25.

3 0

3 years ago

If one inch represents 12 feet, what dimensions would you use to make a scale drawing of a building 75 by 80 feet

viva [34]

Answer:

864000

Step-by-step explanation:

12 feet is one inch so you times the numbers 75x12 and 80x12. 900+960=864000.

3 0

4 years ago

Ray created the list of factors for 48 below.

nasty-shy [4]

The number 7 should be removed from his list to make the list accurate.

3 0

3 years ago

Read 2 more answers

Find sin(a+B)

diamong [38]

Answer:

Cos A=5/13

we have

Cos² A= $1-Sin ²A$

25/169=1-Sin²A

sin²A=1-25/169

sin²A=144/169

Sin A= $\sqrt{144/169}=12/13$

again

Tan B=4/3

P/b=4/3

p=4

b=3

h= $\sqrt{3²+4²}=5$

Now

Sin B=p/h=4/5

in IV quadrant sin angle is negative so

Sin B=-4/5

CosB=b/h=3/5

Now

Sin(A+B):sinAcosB+CosAsinB

now 

substitute value

Sin(A+B):12/13*3/5+5/13*(-4/5)=36/65-4/13

=16/65 is a required answer

6 0

3 years ago