Step-by-step explanation:
a) 4x + 8 - 2x + 7
= 2x +15
b) 2n × 5 × 2a
= 10n × 2a
= 20an
Answer:
hey mate!!
Step-by-step explanation:
x
2
−25=144
X^2=144+25
x^2=169
x=√169
x=13
Sorry mate check out the answer !
The answer to this question is 96cm2
Answer:
The correct option is B.
Step-by-step explanation:
The area of triangle is

Where, b is the base of the triangle and h is the height of the triangle.
It is given that the base of the triangle is 10 inch and the height of the triangle is 14 inch.
The area of given triangle is



Therefore the area of triangle is 70 square inch and the option B is correct.
Answer:
7 hours
Step-by-step explanation:
47+23=70
1hour = 70 toys
? = 490 toys
Then you cross multiply:
1hour*490 toys= 490/70 = 7 hours
____________
70 toys