Step-by-step explanation:
a=8cm
b=15cm
c=17cm
s=a+b+c/2
=8+15+17/2
=40/2
=20
Using heron's formula,
ar. of triangle= √s(s-a)(s-b)(s-c)
=√20(20-8)(20-15)(20-17)
=√20×12×5×3
=√2×2×5×2×2×3×5×3
=2×2×3×5
=60cm²
On side 17cm,
Ar. of triangle=1/2×b×h
60=1/2×17×h
∴h=60×2/17
=7.05 cm
Factors of the given expression by splitting middle term of expression
will be
.
Given expression is

<h3>What is a factor?</h3>
A factor is a number that divides another number leaving no remainder
After we split 42x into 21x each,
The expression looks like,


Taking 3x+7 as common

So factors will be (3x+7) and (3x+7).
Therefore,
Factors of the given expression
will be
.
to get more about factors refer to:
brainly.com/question/25829061
Answer:
D
Step-by-step explanation:
when there are exponents with same bases multiplied by each other, keep the base and add the exponents
4^(3)+4^(5)=4^8
4^8 is D in this question
Answer:
w = 
Step-by-step explanation:
We can find the formula for the width by isolating w:
V = lwh
Divide each side by lh to isolate w:
= w