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Saudi Arabia Homework Resources

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Saudi Arabia
1. Draw a diagram that shows the formation of \( { }_{2}^{4} \mathrm{He} \).
Chemistry Jan 18, 2025
Add or subtract the polynomials. 5. \( \left(-3 a^{3}+2 a^{2}-4\right)+\left(a^{3}-3 a^{2}-5 a+7\right) \) \( 6 .\left(7 x^{2} y^{2}-6 x^{3}+x y\right)-\left(5 x^{2} y^{2}-x^{3}+x y+x\right) \)
Algebra Jan 18, 2025
1. Add or subtract the polynomials. a. \( \left(4 a^{4}-6 a^{3}-3 a^{2}+a+1\right)+\left(5 a^{3}+7 a^{2}+2 a-2\right) \) b. \( \left(2 a^{2} b^{2}+3 a b^{2}-5 a^{2} b\right)-\left(3 a^{2} b^{2}-9 a^{2} b+7 a b^{2}\right) \)
Algebra Jan 18, 2025
Direct Variation Determine whether each equation represents a direct variation. If it does, find the constant of variation. 1. \( 4 y=2 x \) 2. \( 3 x+4 y=-5 \) 3. \( 12 x=-36 y \)
Algebra Jan 18, 2025
b- A driver has a reaction time of one second, and the maximum deceleration of her car is 10.0 \( \mathrm{~m} / \mathrm{s} 2 \). She is driving at \( 30 \mathrm{~m} / \mathrm{s} \) when suddenly she sees an obstacle in the road 60 m in front of her. Can she stop the car in time to avoid a collision? 6- A student at the top of a building of height h throws ball A straight upward with speed v0
Physics Jan 18, 2025
\( ( 1 + 3 + 5 + \ldots + 33 ) - ( 2 + 4 + 6 + \ldots + 32 ) = \)
Arithmetic Jan 18, 2025
Practice: \( 1-2+3-4+5-\cdots-98+99= \) \( \begin{array}{lll}\text { A) }-1 & \text { B) } 0 & \text { C) }\end{array} \)
Arithmetic Jan 18, 2025
ما هي الأحداث المستقلة في الاحتمالات؟
Probability Jan 17, 2025
13. Point \( A \) is chosen on \( y \)-axis in such a way that \( \triangle A B C \) is an equilateral triangle. The base \( B C \) of the \( \triangle A B C \) is 6 units as shown in the figure. i) Find the coordinates of the midpoint of \( B C \). ii) Find the coordinates of the vertices of the triangl iii) Find the area of \( \triangle A B C \). III) ASSERTION-REASON IBASED QUESTIONS 14. Assertion (A): Abscissa of the point ( \( (2,4) \) is 2 . Reason (R): \( 4-2=2 \) a) \( B \) oth \( A \) and \( R \) are true and \( R \) is the correct b) Both \( A \) and \( R \) are true and \( R \) is not the con c) \( A \) is rue but \( R \) is False. d) \( A \) is false but \( R \) is true.
Geometry Jan 16, 2025
14. \( \left(4^{\frac{8}{2}}\right)\left(4^{\frac{5}{3}}\right)=4^{8} \)
Algebra Jan 16, 2025
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