Answer: $2.90
Step-by-step explanation: So you get 10% if you just move the decimal one place to the left so that would be 10%= 1.45 and then you mutiply that by 2 since 10% times 2 is 20% and that is your answer
Answer:
Cone
Step-by-step explanation:
Options:
a) Cone b) Cube
c) Cylinder d) Triangular prism
From the given options (a) to (d), option (a) is true.
This is so, because.
The volume (V) of a cone is:
This is as a result of dilating the cylinder by 1/3 whose volume is:
In other words:
<em>i.e. the cross-section of the cylinder (V2) being dilated by 1/3 (which is between 0 and 1) gives the cone (V1)</em>
Answer:
B. 3 g/mL
Step-by-step explanation:
The first thing is to know the density formula:
Density is given as follows:
d = m / V
let m: mass and V: volume.
We have that the mass of the metal is 1800 grams and the volume of 600 milliliters.
Therefore, replacing:
d = 1800/600 = 3 g / mL
That is, the density is 3 grams per milliliter.
Answer:
the line equation is 2*x - y = 3
Step-by-step explanation:
for the line equation in implicit form
A*x + B*y = C
then if the point (x=4,y=5) belong to the line
4*A + 5*B = C
and if the point (x=7,y=11) belong to the line
7*A + 11*B = C
then since we can choose C freely , we set C=1 for simplicity , then
4*A + 5*B = 1 → B= (1-4*A)/5
7*A + 11*B = 1
7*A + 11*(1-4*A)/5 = 1
7*A - 44/5*A + 11/5 = 1
-9/5*A = -6/5
A= 2/3
B= (1-4*A)/5 = (1-4*2/3)/5 = -1/3
therefore
2/3*x - 1/3*y = 1
2*x - y = 3
Answer: 
<u>Multiply</u>
<u>Multiply</u>
<u>Note</u>
Multiplying/Dividing a negative to a positive will equal a negative. (N×P=N)
Multiplying/Dividing a negative to a negative will equal a positive. (N×N=P)
Multiplying/Dividing a positive to a positive will equal a positive. (P×P=P)
