1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Hunter-Best [27]
4 years ago
6

NEED TO SHOW ALL WORK) For each of the equations given below, use the triangle method to solve for the

Mathematics
1 answer:
Lelechka [254]4 years ago
3 0

Answer:

1) a=\dfrac{F}{m}

2) m=\dfrac{p}{v}

Step-by-step explanation:

1) The given equation is

F=ma

We need to solve this for a.

In the given triangle place single variable i.e., F, on the top and variables in the product in the bottom (order of m and a does not matter) as shown in the below figure.

Using the triangle and the operations (× and ÷), we get

F=ma

a=\dfrac{F}{m}

m=\dfrac{F}{a}

Therefore, the required answer is a=\dfrac{F}{m}.

2) The given equation is

p=mv

We need to solve this for m.

In the given triangle place single variable i.e., p, on the top and variables in the product in the bottom (order of m and v does not matter) as shown in the below figure.

Using the triangle and the operations (× and ÷), we get

p=mv

m=\dfrac{p}{v}

v=\dfrac{p}{m}

Therefore, the required answer is m=\dfrac{p}{v}.

You might be interested in
Solve the system using elimination.<br> 2x + 18y = -9<br> 4x + 18y = -27
Elan Coil [88]

First, let's cancel out the x by multiplying 2x + 18y = -9 by -2.

-2 ( 2x + 18y = -9) = -4x -36y = 18

Then, we combine the two equations.

-4x + 4x = 0

18y - 36y = -18y

-27 + 18 = -9

Our new equation is -18y = -9.

Now, divide both sides by -18.

-18y / -18 = y

-9/ -18 = 1/2

y = 1/2

We can plug in a value for y since y = 1/2 now.

Let's use 2x + 18y = -9

Plug in y.

2x + 18(1/2) = -9

2x + 9 = -9

Then, subtract 9 from both sides.

2x = -18

Divide by 2.

2x/2 = x

-18/2 = -9

x = -9

Lastly, we can plug in both x and y values to see it works.

2(-9) + 18(1/2) = -9

-18 + 9 = -9

Therefore, the values of x and y does work.

x = -9

y = 1/2

4 0
4 years ago
<img src="https://tex.z-dn.net/?f=%5Csf%20%5Clim_%7Bx%20%5Cto%20%5Cinfty%7D%20%5Ccfrac%7B%5Csqrt%7Bx-1%7D-2x%20%7D%7Bx-7%7D" id=
BARSIC [14]
<h3>Answer:  -2</h3>

======================================================

Work Shown:

\displaystyle L = \lim_{x\to\infty} \frac{ \sqrt{x-1}-2x }{ x-7 }\\\\\\\displaystyle L = \lim_{x\to\infty} \frac{ \frac{1}{x}\left(\sqrt{x-1}-2x\right) }{ \frac{1}{x}\left(x-7\right) }\\\\\\\displaystyle L = \lim_{x\to\infty} \frac{ \frac{1}{x}*\sqrt{x-1}-\frac{1}{x}*2x }{ \frac{1}{x}*x-\frac{1}{x}*7 }\\\\\\

\displaystyle L = \lim_{x\to\infty} \frac{ \sqrt{\frac{1}{x^2}}*\sqrt{x-1}-2 }{ 1-\frac{7}{x} }\\\\\\\displaystyle L = \lim_{x\to\infty} \frac{ \sqrt{\frac{1}{x^2}*(x-1)}-2 }{ 1-\frac{7}{x} }\\\\\\\displaystyle L = \lim_{x\to\infty} \frac{ \sqrt{\frac{1}{x}-\frac{1}{x^2}}-2 }{ 1-\frac{7}{x} }\\\\\\\displaystyle L = \frac{ \sqrt{0-0}-2 }{ 1-0 }\\\\\\\displaystyle L = \frac{-2}{1}\\\\\\\displaystyle L = -2\\\\\\

-------------------

Explanation:

In the second step, I multiplied top and bottom by 1/x. This divides every term by x. Doing this leaves us with various inner fractions that have the variable in the denominator. Those inner fractions approach 0 as x approaches infinity.

I'm using the rule that

\displaystyle \lim_{x\to\infty} \frac{1}{x^k} = 0\\\\\\

where k is some positive real number constant.

Using that rule will simplify the expression greatly to leave us with -2/1 or simply -2 as the answer.

In a sense, the leading terms of the numerator and denominator are -2x and x respectively. They are the largest terms for each, so to speak. As x gets larger, the influence that -2x and x have will greatly diminish the influence of the other terms.

This effectively means,

\displaystyle L = \lim_{x\to\infty} \frac{ \sqrt{x-1}-2x }{ x-7 } = \lim_{x\to\infty} \frac{ -2x }{ x} = -2\\\\\\

I recommend making a table of values to see what's going on. Or you can graph the given function to see that it slowly approaches y = -2. Keep in mind that it won't actually reach y = -2 itself.

5 0
3 years ago
If r = 5 units and x = 11 units, then what is the total surface area of the cylinder shown above?
Sergeu [11.5K]

Answer: 502.65

Step-by-step explanation: A= 2πrh + 2πr^ this is the formula for solving the surface area so now you must substitute

2·π·5·11+2·π·5^

6.28 · 55 + 2 π · 25

add and you will get 502.65 hope this helps mark me brainliest if it did

7 0
4 years ago
If the measure of angle 3=2x and the measure of angle 2=3x, what is the measure of angle 1?
earnstyle [38]

Answer: 126°

Step-by-step explanation: Since every triangle has 180 interior degrees, we can say 2x + 3x + 90° = 180°. Subtract 90° from each side and we get

2x + 3x = 90°

5x = 90°

x = 18°

Plug in x for Angle 2, giving us Angle 2 = 54°

Angle 1 and angle 2 must add up to 180°

Subtract 54° from 180° and we get 126°

5 0
3 years ago
Siddique is making a wedding cake. He needs 2.5 kg of flour. Each bag of flour weighs 500g. How many bags will he need to buy?
umka21 [38]

Answer:

You need to buy 5 bags of flour

Step-by-step explanation:

Each bag is 500g and needs 2.5kg.

If we replace 2.5kg it goes to 2500g.

2500g / 500g = 5 bags

7 0
3 years ago
Other questions:
  • What number multiplied by itself gives 36
    15·2 answers
  • What is the answer to 1-2x=-3x+2
    12·2 answers
  • ASPA PLEASE SOMEONE HELP ITS A TEST ,I NEED HELP ON NUMBER ONE , TWO , AND FOUR. I’ll GIVE YOU BRIANLEST PLS ASAP !!
    6·1 answer
  • The USDA reported that in 1990 each person in the United States consumed an average of 133 pounds of natural sweeteners. They al
    15·2 answers
  • In triangle ABC, c is the hypotenuse, 0=25 degrees, and b=3<br> Find the length of c
    10·1 answer
  • Factor 18x + 30 using the GCF
    13·1 answer
  • Nina owns a condominium where she paid $2,340 in maintenance fees this year. If her property taxes are 18% off this amount, how
    15·1 answer
  • List all the factors of the number 48.
    12·1 answer
  • A recipe calls for 1/3 cup of brown sugar for 1 batch. How many batches can be made by one and two-thirds cups? 4 students drew
    15·1 answer
  • Suppose that the height (in centimeters) of a candle is a linear function of the amount of time (in hours) it has been burning.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!