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2 years ago

29. 83 – 2 · 4 = 30. 3 · 6 – 4 · 2 = 31. 3( 6 – 4) · 2 =

Mathematics

1 answer:

tester [92]2 years ago

4 0

1) 21.83

2)173.8

3)12

Hope this helps :)

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1. The difference of two numbers is 3, and the sum of three times the larger one and

vlada-n [284]

Answer: 25 and 22

Step-by-step explanation:

Since one number is 3 bigger than the other, we can call them x, and x-3.

Then we know that the sum of 3 times x and 2 times (x-3) is equal to 19, so we can make the equation

3x+2(x-3)=19

Simplifying would get you

3x+2x-6=19

adding the x's and adding six to both sides of the equations gets you

5x = 25

divide by 5 and

x=5

Put those numbers back into your previous labels for them, x and x-3, and you get 5 and 2

Hope this helps

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2 years ago

Which square root does the point on the number line BEST represent?

Kisachek [45]

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2 years ago

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How do you solve this?<br> 5x-4y+6x<br> if x=8

ololo11 [35]

First plug in the numbers 5 x 8 = 40
40-4y+6x8=48
40-4y+48

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2 years ago

Find dy/dx any one <br>x=acost , y=asint

dangina [55]

Answer:

$x=a \cos t \implies \dfrac{dx}{dt}=-a \sin t$

$y= a \sin t \implies \dfrac{dy}{dt}=a \cos t$

Using the chain rule:

$\begin{aligned}\implies \dfrac{dy}{dx} & =\dfrac{dy}{dt} \times \dfrac{dt}{dx}\\\\& = a \cos t \times \dfrac{1}{-a \sin t}\\\\& = \dfrac{a \cos t}{-a \sin t}\\\\& = - \dfrac{\cos t}{\sin t}\\\\& = - \cot t\end{aligned}$

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1 year ago

Which of the following is not true?

vovikov84 [41]

Answer:

B: m∠1 + m∠3 = m∠2

Step-by-step explanation:

The sum of a triangle is 180° so all of the angles in the triangle are equal to 180°. It is not possible for 2 of the angles in a triangle to be equal to the other angle in the triangle.

Hope This Helps :)

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2 years ago

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