Answer:
We will need 16 tiles
Step-by-step explanation:
Each tile has a width of 1/4 ft
We want to know how many will fill 4 ft
This is a division problem
4 ft wall/ 1/4ft tiles =
copy dot flip
4 * 4/1 = 16
We will need 16 tiles
Answer:x= -54.7
Step-by-step explanation:
-66.5-66.5= -133+ 78.3= -54.7
Answer:
b. about 63.9 units and 41.0 units
Step-by-step explanation:
In question ∠a= 29° and Side of a= 15 and b= 20
Using sine rule of congruence of triangle.
⇒ 
⇒ 
Using value of sin 29°
⇒ 
Cross multiplying both side.
⇒ Sin B= 
∴ B= 41°
Now, we have the degree for ∠B= 41°.
Next, lets find the ∠C
∵ we know the sum total of angle of triangle is 180°
∴∠A+∠B+∠C= 180°
⇒ 
subtracting both side by 70°
∴∠C= 110°
Now, again using the sine rule to find the side of c.

⇒
Using the value of sine and cross multiplying both side.
⇒ C= 
∴ Side C= 28.92.
Now, finding perimeter of angle of triangle
Perimeter of triangle= a+b+c
Perimeter of triangle= 
∴ Perimeter of triangle= 63.9 units
Answer:
78
Step-by-step explanation:
Write out the 13 times tables: 13, 26, 39, 52, 65, 78, ... 78 is the 6th number.
You can also do 13 × 6 which is 78.
Hope this helps!