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3 years ago

Whats f=9 over 5 c +32

Mathematics

1 answer:

Mademuasel [1]3 years ago

5 0

Answer:

It is the formula used to find degrees in Fahrenheit.

f = 9/5c + 32

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.Find the value of 4st - 2t if t = 3 and s = 2. A. 24 B. 20 C. 18 D. 12

klasskru [66]

Answer:

C) 18

Step-by-step explanation:

4st - 2t

4(2)(3) - 2(3)

24 - 6

6 0

3 years ago

HELP ON QUESTION FOR TEST PLEASE!!!

Lyrx [107]

Answer:

C it is porportinal Brainleist pls

Step-by-step explanation:

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3 years ago

Read 2 more answers

Extended Problems, Extraneous Solutions

diamong [38]

Answer:

1a. 2 is the solution

1b. -3 is because square root of 1 doesn't equal -1.

1c.-3

Step-by-step explanation:

$(x + 2 = \sqrt{3x + 10}$

Square both sides

$(x + 2) {}^{2} = 3x + 10$

Remeber perfect square Rule

$(x + y) {}^{2} = {x}^{2} + 2xy + {y}^{2}$

So now we got

$x {}^{2} + 4x + 4 = 3x + 10$

${x}^{2} + x + 4 = 10$

${x}^{2} + x - 6 = 0$

Factor into binomial.

$(x + 3)(x - 2) = 0$

So our solution is 3 or 2. However, let's check our work.

$- 3 + 2 = \sqrt{3( - 3) + 10}$

$- 1 = \sqrt{1}$

However square root of 1 is 1. It could be 1 but in Math, We only take the principal square root which is positive always. So -3 isn't a solution.

So let try 2.

 $2 + 2 = \sqrt{3(2) + 10} = 4 = \sqrt{16} = 4 = 4$ 

So this is indeed the solution.

Make up equation for 2 and 3. Ask me if you need help.

5 0

3 years ago

Pls help me adawdasdaw

Bas_tet [7]

7x+12+6x-2=-4
7x-6x=-4-12+2
13x=-14
x=-14 divide 13
x=-14 over 13 put 14 over 13 in a fraction

8 0

3 years ago

Prove that .555 is a rational number

aalyn [17]

Explanation:

Five hundred fifty-five thousandths is 555/1000 = 111/200, the ratio of two integers, hence a rational number.

4 0

4 years ago