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3 years ago

33. The students of Class VIII of a school donated Rs 2401 in all, for Prime Minister's National

Mathematics

1 answer:

DaniilM [7]3 years ago

7 0

Answer:

Step-by-step explanation:

Let there be x students in the class.

Since, donation by each student is equal to the number of students in the class.

So,

Total donations = 2401

$x \times x = 2401 \\ \\ {x}^{2} = 2401 \\ \\ x = \pm \sqrt{2401} \\ \\ \pm \: 49 \\ \\ \because \: x \: can \: not \: be \: - ve. \\ \\ \therefore \: x = 49$

Thus, the number of students in the class = 49

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Help me please number 3

asambeis [7]

Answer:

c = 26

Step-by-step explanation:

This is a right triangle, so we can use the Pythagorean theorem.

a^2 + b^2 = c^2

where a and b are the legs and c is the hypotenuse

10^2 + 24^2 = c^2

100 + 576 = c^2

676 = c^2

Take the square root of each side

sqrt(676) = sqrt(c^2)

26 = c

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2 years ago

I need help asap pllz help !!

swat32

Answer:

14/28

Step-by-step explanation:

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3 years ago

In the figure, angle D measures 45° and angle E measures 87°. What is the measurement of angle H? 42°

Vinvika [58]

The complete question is shown in the attached image

Answer:
measure angle H = 42°

Explanation:
There is a theorem that states that:
"In a triangle, the measure of the exterior angle is equal to the sum of the measures of the two non-adjacent angles to the exterior angle"

In the given, we have:
angle E is an exterior angle to triangle DFH
The two non-adjacent angles to angle E are angles D and H

Based on the above rule:
measure angle E = measure angle D + measure angle H

We are given that:
angle E = 87°
angle D = 45°

Substitute with the givens in the above rule and solve for the measure of angle H as follows:
angle E = angle D + angle H
87° = 45° + measure angle H
measure angle H = 87° - 45°
measure angle H = 42°

Hope this helps :)

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3 years ago

write an equation of the line with the following information. Through (4,1) and perpendicular to y=1/3x +3

Yakvenalex [24]

Perpendicular means the two lines' slopes are negative reciprocal to each other. the slope of the given line is 1/3, therefore the slope of the perpendicular line is -3/1, which is -3
use the point-slope form: the given point is (4,1), so (y-1)=-3(x-4)
you can stop right here or you can write it into slope intercept form:
y-1=-3x+12
y=-3x+13

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4 years ago

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eimsori [14]

Step-by-step explanation:

The number of vehicles is 25 and the no. of truck is 9 so the probability is 9/25

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3 years ago