Question

can anyone ans for these questions with correct steps and formula and pls I need ans fast

who answered crt will be marked as brainlist and I will give thanks for their all ans in brainly ❣️❣️❣️❣️❣️❣️❣️❣️❣️❣️❣️❣️❣️❣️❣️❣️❣️❣️❣️❣️❣️❣️❣️❣️❣️❣️❣️​

Answer 1

$\huge\underline\bold\pink{Answer:-}$

(III)

1. Given, 88×112

Using Identity $\rightarrow$(a+b) (a-b) = $a^2-b^2$

88×112

=(100-12) (100+12)

=$(100)^2-(12)^2$

=10000 - 144

= 9856

$\quad$

2. Area of the rectangle = $64m^2$

Length of the rectangle(l) = 16cm

Breadth of the rectangle(b) = ?

We know that, A = l × b

$\therefore$ Breadth (b) = $\dfrac{Area}{length}={64}{16}$ = 4m

$\quad$

3. Let the fourth angle be 'x'.

Sum of all angles = 360°

$\therefore$ 68° + 74° + 108° + x = 360°

x = 360° - 250 ° = 110°

$\quad$

4. P = ₹8000

R = 5 % p. a.

T = 2 years

Formula:-

A = P[1+$\dfrac{R}{100}^n]$]

A = ₹8000[1+$\dfrac{5}{100}^2]$]

= ₹8000[$\dfrac{21}{20}^2]$]

= ₹8000×$\dfrac{21}{20}\times{21}{20}$

= ₹(20×21×21) = ₹8820

Now, Compound Interest = A - P = ₹(8820 - 8000) = ₹820

$\quad$

5. $(2^5\times2^4)\div2^{13}$ = $2^5+4\div2^{13}$ = $2^9\div2^{13}$ = $2^{9-13}$ = $2^{-4}$

$\quad$

6. Above in the Attachment!

7. $m^2-3m-40$

=$m^2+5m-8m-40$

=m(m+5)-8(m+5)

=(m-8) (m+5)

$\quad$

8. 5y+18=11-2y

$\implies$ 5y+2y = 11-18

$\implies$ 7y = -7

$\implies$ y = -1

$\quad$

(IV)

1. Above the attachment.

2. Length of the Cuboid = 12cm

Breadth of the cuboid = 8 cm

Height of the cuboid = 4.5cm

• Volume of Cuboid = l×b×h

= (12×8×4.5) $cm^3$

= 432$cm^3$

• Lateral Surface area of cuboid = 2(l+b)h

= (2(12+8)×4.5)$cm^2$

= (2×20×4.5)$cm^2$

= 180$cm^2$

• Total surface area of cuboid = 2(lb+bh+lh)

= 2(12×8+8×4.5+12×4.5) $cm^2$

= 2(96+36+54) $cm^2$

= 2(186) $cm^2$

= 372$cm^2$

$\quad$

3. Above in the Attachment!

$\quad$

4. Let the numbers be 4x, 5x, and 6x.

As per the question,

4x+5x+6x = 135

$\implies$15x = 135

$\implies$x = $\dfrac{135]{15}$

$\implies$x = 9

The Numbers are:-

4x = 4×9 = 36

5x = 5×9 = 45

6x = 6×9 = 54

$\quad$

(V)

1.Above in the Attachment!

Hello! Mate

I have answered all the Given questions. You can check!

Answer 2

Answer:

Mark above ans as the Brainliest because I couldn't type all answers.