3 years ago

Are 6r +3 and 9r equivalent

Mathematics

1 answer:

Vaselesa [24]3 years ago

6 0

Answer:

Step-by-step explanation:

u cant add 6r+3 because only one number has a variable. 6r+3r would equal 9r

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Two slits are illuminated by a 348 nm light. The angle between the zeroth-order bright band at the center of the screen and the

Andre45 [30]

Answer:0.369 m

Step-by-step explanation:

Given

Distance between slit and screen is $D=154 cm$

Wavelength $\lambda =348 nm$

Angle between zeroth order bright fringe and Fourth-order bright fringe is $\theta =13.5^{\circ}$

let distance between the slits be d

Distance of n th bright fringe From central Fringe is given by

$y_n=\frac{nD\lambda }{d}$

Also $\tan \theta =\frac{y_4}{D}$

$y_4=\tan (13.5)\cdot 1.54$

$y_4=0.24\times 1.54$

$y_4=0.369 m$

5 0

3 years ago

I don’t know ans of 17 number say me answer

Ede4ka [16]

Area of the bigger rectangle =(18×8)cm

=144cm

Area of the smaller rectangle =((30−18)×(8−6))=(12×6)cm

=72cm

∴ Total area = area of smaller rectangle + area of bigger rectangle =(72+144)cm

=216cm

4 0

2 years ago

Read 2 more answers

Slope intercept form that passes though the point (-2,-3) and has a slope of 5/2

olganol [36]

$\text{Given that,}\\\\(x_1,y_1) = (-2,-3), ~~\text{and slope,}~~m = \dfrac 52\\\\\\\text{Now,}\\\\y -y_1 =m(x-x_1)\\\\\implies y +3 = \dfrac52 (x+2)\\\\\implies y = \dfrac 52(x+2) -3\\\\\\\implies y = \dfrac{5}2 x + 5 -3 \\\\\\\implies y = \dfrac 52 x + 2\\\\\\\text{This is the slope-intercept form(y =mx+b)}.$