Answer:
5 x 5
Step-by-step explanation:
Hope this helps.
3x + 2y = 4
A) (-2, 5)
B) (1, 4)
C) (2, -1)
D) (4, -4)
Answer:
(C) (2,-1)
Step-by-step explanation:
The given system of equations is :
(1)
and (2)
Multiply equation (1) with 2 and then subtract equation (2) from it, we get
⇒
⇒
⇒
Substitute the value of x=2 in equation (1), we get
⇒
⇒
⇒
Therefore, x=2 and y=-1. that is (2,-1).
To find density use: density
mass
volume
5 cm
16 cm
10 cm
Determine the density of the Geometry textbook in g/cm3.
Round your answer to the nearest hundredths place.
The density of the Geometry textbook is 0.06 g/cm^3.
To find the density of the Geometry textbook in g/cm^3, we need to find its volume first. The volume of a rectangular prism is given by the formula V = l x w x h, where l is the length, w is the width, and h is the height.
In this case, the length is 16 cm, the width is 10 cm, and the height is 5 cm. Therefore, the volume of the Geometry textbook is:
V = l x w x h = 16 cm x 10 cm x 5 cm = 800 cm^3
Now, we can find the density of the textbook using the formula:
Plugging in the given mass of 48 grams and the calculated volume of 800 cm^3, we get:
density = 48 g / 800 cm^3 = 0.06 g/cm^3
Therefore, the density of the Geometry textbook is 0.06 g/cm^3. We rounded our answer to two decimal places as the original mass was given in grams to two decimal places.
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3x-2y=9
y=2x-7