4 years ago

(PLEASE HELP MATH QUESTION

Mathematics

1 answer:

saveliy_v [14]4 years ago

6 0

I believe the answer you want is the third option

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Two forces of 90 newtons and 58 newtons act simultaneously on an object. The angle between the two forces is 57°. Find the magni

Vanyuwa [196]

Answer:

131.0 N

Step-by-step explanation:

Let the 90 N force is acting a horizontal force on the object

Horizontal force = 90 + 58sin33

Vertical force = 58cos33

∴The resultant force = √(90 + 58sin33)² + (58cos33)²

= 131.0 N

4 0

3 years ago

Simplify 43 +4.5 Plzzz help!!!!!!

swat32

Answer:

47.5

Step-by-step explanation:

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3 years ago

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Gelneren [198K]

Answer:

$\huge\boxed{x=15;\ y=4}$

Step-by-step explanation:

Proportion:

$\dfrac{x}{18}=\dfrac{5}{6}\qquad|\text{cross multiply}\\\\(x)(6)=(18)(5)\\\\6x=90\qquad|\text{divide both sides by 6}\\\\\huge\boxed{x=15}$

$\dfrac{y}{5}=\dfrac{12}{x}$

substitute x = 15:

$\dfrac{y}{5}=\dfrac{12:3}{15:3}\\\\\dfrac{y}{5}=\dfrac{4}{5}\qquad|\text{cross multiply}\\\\(y)(5)=(5)(4)\\\\5y=20\qquad|\text{divide both sides by 5}\\\\\huge\boxed{y=4}$

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3 years ago

PLS help question 9 and 10 or u can do only 9 it’s due tmrw

SCORPION-xisa [38]

Answer:

im pretty sure #9 is just y=7x... it should be parallel with y=7x-3 since it has y intercept of 0 rather than -3.

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3 years ago

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Find x Solve the simultaneous equations 3x + 2y = 27 3x – y=9

Juli2301 [7.4K]

Answer:

I think it is this because it seems as if It is 2 separate equations.

a.x=9-2y/3

b.x=3+y/3

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3 years ago