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2 years ago

HELP ME I DOMT UNDERSTAND

Mathematics

1 answer:

Vilka [71]2 years ago

3 0

1) -30 meters because descend means decrease

2) 20 meters because above means positive

3) 0 because it does not change

Hope this helps!

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For triangle ABC, m(∠A) = 30° and m(∠B)= 115°. Which of the following lists the sides of the triangle from shortest to longest?

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2 hope this helps you

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How many solutions does an equation of the form x^2- k^2= 0 have?

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3 years ago

Se arrastra un bloque de 18 kg a través de una superficie con una fuerza de 300 N en donde el coeficiente de fricción de dicha s

ozzi

Answer:

$10.9\ \text{m/s}^2$

Step-by-step explanation:

m = Masa del bloque = 18 kg

F = Fuerza en el bloque = 300 N

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El equilibrio de fuerzas del sistema viene dado por

$F-f=ma\\\Rightarrow 300-0.6\times 18\times 9.81=18a\\\Rightarrow a=\dfrac{300-0.6\times 18\times 9.81}{18}\\\Rightarrow a=10.9\ \text{m/s}^2$

La aceleración del bloque es $10.9\ \text{m/s}^2$ .

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3 years ago

I need some help on these questions thanks

GuDViN [60]

Answer:

theres no questions

Step-by-step explanation:

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3 years ago

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I GIVEEEEE BRAIMLILSTER

timofeeve [1]

Answer:

$\boxed{\boxed{\pink{\bf \leadsto It \ will \ take \ 5 hours \ to \ travel \ 300 \ miles. }}}$

<h3>Step-by-step explanation:</h3>

According to Question , a plane travels 120 miles in 2 hours. So here we will use unitary method .

$\bf\implies If \ it \ covers \ 120 \ miles \ in \ 2 \ hours \\\\\bf\implies Then \ one \ mile \ will \ be \ covered \ in \ \dfrac{120}{2} hrs \\\\\bf\implies Hence \ 300 \ miles \ will \ be \ covered \ in \ \dfrac{2}{120}\times 300 hrs = \red{5 \ hours }$

<h3>Hence it will cover 300 miles in 5 hours .</h3>

Here it was a case of direct proportion in which if two things are directly proportional to each other. If one thing thing increases then the value of second also increases. Here if the time increases then the distance also increases

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2 years ago