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2 years ago

Convert 59°F to Celsius, using the formula C = 5/9 (F - 32)

Mathematics

2 answers:

mr_godi [17]2 years ago

6 0

C = 5/9 (F - 32)

Substitute for 59.

C = 5/9 (59 - 32)

C = 5/9 (27)

Multiply.

C = 5/9 (27)

C=15

nadya68 [22]2 years ago

3 0

Answer: $C=15\°C$

Step-by-step explanation:

To solve this exercise you only need to susbstitute the value of the temperature in Fahrenheit into the formula given in the problem.

Therefore, keeping the above on mind, you obtain that 59°F to Celsius is:

$C=\frac{5}{9}(F-32)$

Substituting F=59 into the formula you have that:

$C=\frac{5}{9}(59-32)$

$C=15\°C$

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FOR BRAINLIEST ANSWER ONLY: 2. 3. 4. 6.

nasty-shy [4]

Answer:

2. x = 2 & y = 4

3. x = 4 & y = 2

Step-by-step explanation:

2. x + y = 6

2x + y = 8 (multiply the first equation by -1, so you can eliminate the ys)

- x - y = -6

2x + y = 8 (now add the variables together)

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x + y = 6

(2) + y = 6

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y = 4

3. 3x + y = 14

x = 2y (plug in x into the first equation and solve it for y)

3(2y) + y = 14

6y + y = 14

7y = 14

y = 2 (plug in y in one of the equations to find out x)

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x = 2(2)

x = 4

4. One number (x) is 2 more (+2) than twice (times 2) as large as another. their sum is 17. Find the numbers.

2x + 2 = 17 (solve for x)

-2 -2

2x = 15

x = 7.5

6. 7 (4x + 1) - (x + 6) (start by distributing 7 into the first parenthesis)

(28x + 7) - (x + 6) (do the same to the other parenthesis by distributing -1)

(28x + 7) (-x - 6) (and now just combine like terms)

28x + 7 - x - 6

28x - x + 7 - 6

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i hope this helped! if you have any question, pls let me know!

6 0

2 years ago

A bird flies at a speed of 15 metres per second for 5 seconds, how far does the bird fly

Nadusha1986 [10]

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4 0

2 years ago

How do I love this problem

vampirchik [111]

X^2 - 6x + 5 = 0
(x - 5)(x - 1) = 0
x - 5 = 0; x =5
x - 1 = 0; x = 1

answer
x = 1, x =5

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3 years ago

Can some one help with 18 and 19

bulgar [2K]

By by pythagorean theorem
12 (squared) + r (squared) = (8+r) squared
so 144 + r ( squared) = 64 + r (squared) +16r
so solving for r:
144 -64 = r squared –r squared + 16r
80 = 16r
so r = 80/16= 5

the second is the same
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5 0

2 years ago

8. Find the area of a circle with center

antoniya [11.8K]

Answer:

Area of circle = 50.24 units

Option J is correct answer.

Step-by-step explanation:

We need to find the area of a circle with centre (2, 3) that passes through (2,7)

The formula used to find area of circle is:

$Area\: of\: circle=\pi \:r^2$

We need to find radius.

The radius can be found using the distance between points (2,3) and (2,7)

The The distance formula is: $Distance = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

Putting values and finding length

We have: $x_1=2, y_1=3, x_2=2, y_2=7$

Putting values and finding distance

$Distance = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\\Distance = \sqrt{(2-2)^2+(7-3)^2}\\Distance = \sqrt{(0)^2+(4)^2}\\Distance = \sqrt{0+16}\\Distance = \sqrt{16}\\Distance = 4$

So, we found Distance = 4

Therefore, the radius of circle is 4

Now, finding area:

$Area\: of\: circle=\pi \:r^2\\Area\: of\: circle=3.14\times (4) ^2\\Area\: of\: circle=3.14\times 16\\Area\: of\: circle=50.24 \:units$

So, Area of circle = 50.24 units

Option J is correct answer.

6 0

2 years ago