Question
upstudy study bank question image url

\( \sqrt{\frac{100 a^{21}}{a^{19}}} \) при \( a=8 \)

Ask by Greene Bartlett. in Russia
Jan 23,2025

Real Tutor Solution

Tutor-Verified Answer

Answer

При \( a = 8 \) значение выражения равно **80**.

Solution

Давайте упростим выражение: \[ \sqrt{\frac{100 a^{21}}{a^{19}}} = \sqrt{100 \cdot a^{21-19}} = \sqrt{100 \cdot a^2} = \sqrt{100} \cdot \sqrt{a^2} = 10 \cdot |a| \] Поскольку \( a = 8 \) (положительное число), получаем: \[ 10 \cdot 8 = 80 \] **Ответ:** При \( a = 8 \) значение выражения равно **80**.

Reviewed and approved by the UpStudy tutoring team

error msg
Explain
Simplify this solution

Mind Expander

Сначала упростим выражение внутри квадратного корня: \[ \sqrt{\frac{100 a^{21}}{a^{19}}} = \sqrt{100 \cdot a^{21 - 19}} = \sqrt{100 \cdot a^{2}} = \sqrt{100} \cdot \sqrt{a^{2}} = 10 \cdot a. \] Теперь подставим значение \( a = 8 \): \[ 10 \cdot 8 = 80. \] Таким образом, значение выражения \( \sqrt{\frac{100 a^{21}}{a^{19}}} \) при \( a=8 \) равно 80.

Try Premium now!
Try Premium and ask Thoth AI unlimited math questions now!
Maybe later Go Premium
Study can be a real struggle
Why not UpStudy it?
Select your plan below
Premium

You can enjoy

Start now
  • Step-by-step explanations
  • 24/7 expert live tutors
  • Unlimited number of questions
  • No interruptions
  • Full access to Answer and Solution
  • Full Access to PDF Chat, UpStudy Chat, Browsing Chat
Basic

Totally free but limited

  • Limited Solution
Welcome to UpStudy!
Please sign in to continue the Thoth AI Chat journey
Continue with Email
Or continue with
By clicking “Sign in”, you agree to our Terms of Use & Privacy Policy