Skip to main content
HomeMATHalinoEngineering Math Review

Search form

Login • Register

  • Home
    • Recent
    • Glossary
    • About
  • Algebra
    • Derivation of Formulas
    • Engineering Economy
    • General Engineering
  • Trigo
    • Spherical Trigonometry
  • Geometry
    • Solid Geometry
    • Analytic Geometry
  • Calculus
    • Integral Calculus
    • Differential Equations
    • Advance Engineering Mathematics
  • Mechanics
    • Strength of Materials
    • Structural Analysis
  • CE
    • CE Board: Math
    • CE Board: Hydro Geo
    • CE Board: Design
    • Surveying
    • Hydraulics
    • Timber Design
    • Reinforced Concrete
    • Geotechnical Engineering
  • Courses
    • Exams
    • Old MCQ
  • Forums
    • Basic Engineering Math
    • Calculus
    • Mechanics
    • General Discussions
  • Blogs

Breadcrumbs

You are here:

  1. Home

Evaluate $\begin{vmatrix}
8 & -20 \\ 4 & 10
\end{vmatrix}$.

A. 120 C. 160
B. 140 D. 180

Solution Click here to…

Jhun Vert Fri, 06/07/2024 - 18:20

Solution

Click here to expand or collapse this section
8(10) - 4(-20) = 160
  • Log in or register to post comments
  • Log in or register to post comments

More Old MCQ

Orphaned Multiple Choice Questions (MCQ) due to changes of exam system.
  • A cone was formed by rolling a thin sheet of metal in a form of a sector of a circle 72 cm in diameter with a central angle of 150 deg. Find the volume of the cone.
  • The denominator of a certain fraction is 1 more than the numerator. If the numerator is increased by 2 and 1/2, the value will be equal to the reciprocal of the original fraction. Find the original fraction.
  • The area under the curve $y = x^2 between the values $x = 1$ and $x = 7$ is closest to:
  • A student in a chemistry laboratory wants to form a 32 milliliter mixture of two solutions to contain 30% acid.
  • Point P has cylindrical coordinates of (8, 30deg, 5). Find the value of x in the Cartesian coordinates.
  • m7NbLvW-1 Find the mid-chord elevation.
  • Compute the sum of the integers from 1 to 1000.
  • At what angle do the lines $y = 2x + 2$ and $y = x - 4$ intersect?
  • The weight of stone cladding from a large shipment averages 1.5 kg with a standard deviation of 0.162 kg.
  • A spider eats three flies a day. Until he fills his quota, he has an even chance of catching any fly that attempts to pass.
  • Without the use of calculator, solve for y if $\ln y = \frac{1}{2}\ln 4 + \frac{2}{3} \ln 8$.
  • What time after 3:00 o’clock would the hour-hand and the minute-hand of a continuously driven clock subtends an angle of 45deg; for the second time?
  • A slope of 20 degrees in percent is most nearly equal to:
  • Compute the following: $\displaystyle \sum_{n = 1}^3 \left( \dfrac{n + 1}{n} \right) - \sum_{n = 1}^3 \left( \dfrac{n}{n + 1} \right)$.
  • Find the volume of a circular cone having a base radius of 20 cm and axis 30 cm, if the axis makes an angle of 60° from the base.
more
Home • Forums • Blogs • Glossary • Recent
About • Contact us • Terms of Use • Privacy Policy • Hosted by Linode • Powered by Drupal
MATHalino - Engineering Mathematics • Copyright 2026 Jhun Vert • All rights reserved