Mathematics College

PLEASE HELP !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

PLEASE HELP !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer 1

Answer:

[tex] R = \frac {3ST}{2S + T} [/tex]

Step-by-step explanation:

Given the equation;

[tex] \frac {3}{R} - \frac {1}{S} = \frac {2}{T} [/tex]

Rearranging the equation, we have;

[tex] \frac {3}{R} = \frac {2}{T} + \frac {1}{S} [/tex]

Lowest common multiple (LCM) of S and T is ST.

[tex] \frac {3}{R} = \frac {2S + T}{ST} [/tex]

Cross-multiplying, we have;

[tex] 3ST = R(2S + T) [/tex]

Making R, the subject of formula;

[tex] R = \frac {3ST}{2S + T} [/tex]

Related Questions



Cooking oatmeal requires 1 cup of water for every
cup of oats. How many cups of water will be required for
3/5
cup of oats?

Answers

Answer:

have no idea

Step-by-step explanation:

Hope someone else answers and sorry that ai didn't answer

What is the function as to how it’s graph is related to the parent function f(x)=3squared

Answers

I have to go to the gym and I have to go to the gym and I have to go to the gym and I have to go to the gym and I have to go to the gym and I

For the following right triangle, find the side length x. Round your answer to the nearest hundredth.
8
9

Answers

A squared plus b squared equals c squared. 8 squared is 64 and 9 squared is 81. 64+81 is 145. 145 square root is rounded to 12.

3) Kweku had 300 mangoes. He sold
240 of them - What is the percentage of
mangoes left.​

Answers

Answer:

20%

Step-by-step explanation:

300 - 240 = 60  ÷  300 = 20% mangoes.

simplify
[tex] {a}^{2} - {b}^{2} [/tex]
​

Answers

Answer:

a² - b²

= (a+b) (a-b)

Hope it helps!

find the volume of cuboid whose Length breadth and height are 3cm 4cm and 5cm respectively​

Answers

Answer:

volume of cuboid(v)=l*b*h

3cm*4cm*5cm

60cm cube

Find the mean absolute deviation of the set of data. Round your answer to two
decimal places.
3, 1, 5, 4, 8,6

Answers

Answer:

134568

Step-by-step explanation:

go go go

(-7)+b=(-11) what does b=

Answers

Answer:

-4 or 4

Step-by-step explanation:

:)

Help please include explanation screenshot attached and brainliest to correct answer

Answers

Answer:

x>-8 (Or option D)

Step-by-step explanation:

-2x+7<23 Subtract 7 from both sides

-2x<16 Now divide by -2. You also have to flip the < sign because you are dividing by a negative number

x>-8

The reasoning for D over C is because D is an open circle meaning that it is only less than or greater than. When it is a closed circle, it means less than or equal to or greater than or equal to. :)

Someone help me :') picture attached

Answers

Answer:

the slope of the line is -4

Step-by-step explanation:

Answer:

-3

Step-by-step explanation:

A snail crawled 7 miles in 8.4 hours. At this speed, how long would it take the snail to crawl 10 miles?

Answers

12 hours I think. Hope this helps.

Answer: 12 hours

Step-by-step explanation:

Let's set the speed as "s".

Remember that distance = speed * time

So, plugging the numbers given...

7 = s * 8.4

Divide both sides by 8.4

s = 5/6

Now, plug this into the distance = speed * time, with the distance being 10. Set the time as "t"

10 = 5/6 * t

Divide both sides by 5/6

12 = t

So, it would take 12 hours for the snail to crawl 10 miles.

Solve for × and write answer in interval notation.
[tex] \frac{1}{x + 1} \geqslant \frac{3}{x - 2} [/tex]
​

Answers

Answer:

( -∞, -2.5] ∪ (-1, 2)

Step-by-step explanation:

1/(x + 1) ≥ 3/(x - 2)

x - 2 ≥ 3(x + 1)

x - 2 ≥ 3x + 3

x - 3x ≥ 3 + 2

-2x ≥ 5

x ≤ -2.5

Interval notation:

( -∞, -2.5] ∪ (-1, 2)

The rare tweety-birds are decreasing at a rate proportional to the
amount present. On January 1st there are 10,000 tweety-birds.
Fifteen days later, there are only 9,000.
(Problem la, 3 points)
Write a formula for the total amount of birds.

Answers

10,000+15x=9000 is the answer

The sum of the interior angle measures of a convex polygon is 540° . How many sides does it have?

Answers

The answer
5
Explanation
The shape is a pentagon

a number and multiplied by 7?

y + 7

y / 7

y - 7

7y

Answers

its 7y bcs y + 7 is addition,y / 7 is division and y - 7 is subtraction

FInd the unknown value of:
18 = 3 + x
x = ?

Answers

the answer to the equation is x=15

What is the ratio of 4 to 12

Answers

Answer:

3?

Step-by-step explanation:

help me dont put link when answering question

Answers

Answer:

b

Step-by-step explanation:

ano ang katangian ng isang bionote?​

Answers

Explanation:Ang bionote ay hindi tulad ng isang karaniwang Tala buhay kung saan niroromantisa ang naging buhay ng tampok na indibidwal. Ang bionote ay isang maikling talata na naglalaman ng isang pinaikling talambuhay. Pinaikli, sapagkat't ito ay naglalaman na lamang ng mga impormasyon na totoo at direkta.

Karaniwang nilalagay lamang sa bionote ang lugar ng kapanangakan, pinag-aralan, nakamit ng mga pangaral,at mga naisulat na akda

mr. denson has a sqaure

Answers

Answer:

Nice square Mr. Denson.

Step-by-step explanation:

pls who can help me ans my maths questions plssss and I will give you a brainliest ​

Answers

Answer:

but please where is the question?

Rewrite the expression by combining like terms.
8y^2 + 7xy – 2y^2 - 5xy + 2x

Answers

6y²+2xy+2x

Step-by-step explanation:

8y²-2y²=6y²

7xy-5xy= 2xy

2x=2x

God 7: buogjfhfhgghuhyyhhhhhhhhh

Type the correct answer in each box. Use numerals instead of words.
What is the inverse of this function?
f(x)=-V7 + 3, * > -3
x²-0 for xs

Answers

Answer:

4

3

0

Step-by-step explanation:

1. Solve the inequality 2x-5>11​

Answers

Answer:

X=9

Step-by-step explanation:

2(9)-5 > 11

18-5 > 11

13>11

2x-5>11

2x-5+5>11+5 five will be cancelled five

2x>11+5

2x>16 divide 2 by 2 you get x then divide 16 by 2

x>8 this means x is greater than eight {x= 9,10,11,12.......}

Is x=5 a solution to the equation: 4x=20

Answers

Yes it would be!!!!!!!

Answer:

Step-by-step explanation:

4(x-5)=4x-20

4x-20=4x-20

+20 +20

4x=4x

-4x -4x therefore there's infinite solutions

0=0

Find the missing the terms of the arithmetic sequence

Answers

Answer:

1.7

Step-by-step explanation:

2.3, 3.1, 1.9, 1.7, 1.5 (-0.2)

hhhhhhhhhhhhhhhhhhhhhheeeeeeeeeeeeeeeeeeeeeelllllllllllllllllllllllllllpppppppppppppppp please this the last question so I could get a b

Answers

Answer:

What is your question so I can answer it directly okay

Write the standard form of the equation of the circle with center (7,1) that also contains the point (−1,−5).

Enter the equation in simplest terms.
pls no links. my computer can't open

Answers

Answer:

[tex](x-7)^2+(y-1)^2=100[/tex]

Step-by-step explanation:

1) Find the radius

We can do this by using the distance equation with the centre (7,1) and the given point (-1,-5):

[tex]d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex] where the two points are [tex](x_1,y_1)[/tex] and [tex](x_2,y_2)[/tex]

Plug in the points (7,1) and (-1,-5)

[tex]d=\sqrt{(-1-7)^2+(-5-1)^2}\\d=\sqrt{(-8)^2+(-6)^2}\\d=\sqrt{64+36}\\d=\sqrt{100}\\d=10[/tex]

Therefore, the radius of the circle is 10 units.

2) Plug the data into the equation of a circle

Equation of a circle (when not centred at the origin):

[tex](x-h)^2+(y-k)^2=r^2[/tex] where the centre is [tex](h,k)[/tex] and r is the radius

Plug in the centre (7,1) as (h,k)

[tex](x-7)^2+(y-1)^2=r^2[/tex]

Plug in the radius 10

[tex](x-7)^2+(y-1)^2=10^2\\(x-7)^2+(y-1)^2=100[/tex]

I hope this helps!

Find the derivative of f(x) = -12x2 + 9x at x = 6.
a) -112.5
b)-135
c)90
d)108

Answers

hi

f(x) = -12x²+9x

So

f'(x) =  -24x +9

if  x = 6   then  f'(6) = -24 (6) +9 = -135

what is equivalent to 5:2

Answers

Answer:

2.5:1 or 2.5

Step-by-step explanation:

5/2 ÷ 2 would give you 2.5/1 or 2.5

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