we have
![1.4n + 2 = 2n + 3.2](https://tex.z-dn.net/?f=1.4n%20%2B%202%20%3D%202n%20%2B%203.2)
we know that
If
is a solution of the equation
then
the value of n must satisfied the equation
<u>Substitute the value of n in the equation</u>
![1.4*(-2) + 2 = 2*(-2) + 3.2](https://tex.z-dn.net/?f=1.4%2A%28-2%29%20%2B%202%20%3D%202%2A%28-2%29%20%2B%203.2)
![-2.8 + 2 = -4 + 3.2](https://tex.z-dn.net/?f=-2.8%20%2B%202%20%3D%20-4%20%2B%203.2)
----> the equation is true
so
The value of n is a solution of the equation
therefore
<u>the answer is the option B</u>
![-0.8 = -0.8](https://tex.z-dn.net/?f=-0.8%20%3D%20-0.8)
Answer:
Step-by-step explanation:
1000
Answer:
D
Step-by-step explanation:
EXPLORE test is the college test ACT's "prep" version mostly for 8th and 9th graders.
ASVAB (Armed Services Vocational Aptitude Battery) test is used for military entrance exam.
PLAN is also like EXPLORE that it is a "prep" test for ACT but usually given to sophomore (10th grade) students. This has been discontinued from 2014, though.
SAT is a standardized test administered by College Board and is a widely used common Undergraduate University admissions exam. Colleges use this to make admissions decisions.
Thus, D is the correct choice.
Answer:
196
Step-by-step explanation:
Surface area of a cuboid:
2 ( lw + wh + hl)
L = Length
W = Width
H = Height
Area of the base = 30 = lw; So we could take the length as 15 cm and width as 2 cm.
Volume = lwh; 15 x 2 x (4); So 4 is the height
So, 2 ( lw + wh + hl)
= 2 (15 x 2 + 2 x 4 + 4 x 15)
= 2 (30 + 8 + 60)
= 2 (98)
= 196 is the surface area of cuboid