<span>4(x+5) = 4x +5x
Simplify by distributing and combining like terms
</span>(4)(x)+(4)(5)=4x+5x
4x+20=4x+5x
4x+20=(4x+5x)
4x+20=9x
Subtract 9x from each side
4x+20−9x=9x−9x
5x+20=0
<span />
Subtract 20 from each side
−5x+20−20=0−20
−5x=−20
Divide each side by -5
-5x ÷ -5 = -20 ÷ -5
x = 4
P.S this was actually harder than most algebra problems, so don't beat yourself about it :D<span /><span /><span /><span /><span />
Correct option B)
.
<u>Step-by-step explanation:</u>
We have the following figure attached as shown below.
Now, this triangular prism have 2 similar right angled surfaces and 3 rectangular surfaces , Let's calculate area for all of them:
2 similar right angled surfaces
We know that area of triangle = 
⇒ 
⇒ 
⇒ 
But there 2 such surfaces so , 
3 rectangular surfaces
Area of rectangle = 
⇒ 
⇒ 
⇒ 
⇒ 
⇒ 
⇒ 
Total area =
Adding area of 2 similar right angled surfaces & 3 rectangular surfaces:
=
Correct option B) .
Answer:
5
Step-by-step explanation:
The mean is the average so add up all values of the data points and divide by the amount of data points.
Answer:
its area us 153.94
<em>its </em><em>diameter</em><em> </em><em>is </em><em>14cm</em>
<em><u>its </u></em><em><u>radius </u></em><em><u>is </u></em><em><u>7cm</u></em>
<em><u>its </u></em><em><u>circumference </u></em><em><u>is </u></em><em><u>43.</u></em><em><u>9</u></em><em><u>8</u></em>
Step-by-step explanation:
area of circle means πr square
diameter means 2r
radius already given
circumference means. 2πr
2. First you find the area of the square.
10*10
Then you have to find the area of the half circle. To do that you pretend it’s a whole circle and then divide it by two.
pi*r^2
The radius would be 5 so the area would be 25pi divided by 2.
