If a=-10, evaluate : 1 5 a ^2 - Vidyadip

Question

If $a=-10$, evaluate : $\frac{1}{5} \times a ^2$

✓

Answer

$\frac{1}{5} \times a ^2$
$=\frac{1}{5} \times( a \times a )$
$=\frac{1}{5} \times(-10) \times(-10)$
$=\frac{1}{5} \times 100$
$=20$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "[3 marks sum]" from Framing Algebraic Expressions (Including Evaluation)→Framing Algebraic Expressions (Including Evaluation) — all question types→MATHS STD 6 question papers→ICSE Board STD 6 question papers→ICSE Board question paper generator→

Similar questions

The weekly expenses of a boy have increased from ₹ 1,500 to ₹ 2,250. Find the ratio of:
(i) increase in expenses to original expenses.
(ii) original expenses to increased expenses.
(iii) increased expenses to increase in expenses.

Show that 45 and 56 are co-prime numbers.

Write the degree of the following polynomial:
$100x^8 − 8x^{100}$

If m $= − 8$, evaluate:
$m^2 + 9m$

A rectangular piece of paper has area $= 24 \ cm^2$ and length $= 5 \ cm.$ Find its perimeter.

Find the sum of $x^2 − x + 1, − 5x^2 + 2x − 2$ and $3x^2 − 3x + 1$

Reduce the following ratio to their lowest term:
1 hour 20 min : 2 hours

Subtract the sum of $2 \frac{5}{12}$ and $3 \frac{3}{4}$ from the sum of $7 \frac{1}{3}$ and $5 \frac{1}{6}$.

What should be added to $9 \frac{4}{7}$ to get 16 ?

Solve $: 2x + 4.6 = 8$